./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/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 0775aa74e42740d69127a88680deb3bae2149559 .................................................................................................................................. 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_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/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 0775aa74e42740d69127a88680deb3bae2149559 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:03:22,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:03:22,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:03:22,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:03:22,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:03:22,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:03:22,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:03:22,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:03:22,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:03:22,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:03:22,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:03:22,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:03:22,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:03:22,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:03:22,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:03:22,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:03:22,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:03:22,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:03:22,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:03:22,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:03:22,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:03:22,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:03:22,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:03:22,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:03:22,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:03:22,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:03:22,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:03:22,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:03:22,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:03:22,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:03:22,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:03:22,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:03:22,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:03:22,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:03:22,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:03:22,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:03:22,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:03:22,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:03:22,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:03:22,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:03:22,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:03:22,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 20:03:22,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:03:22,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:03:22,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:03:22,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:03:22,698 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:03:22,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:03:22,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:03:22,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:03:22,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:03:22,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:03:22,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:03:22,700 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:03:22,700 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:03:22,701 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:03:22,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:03:22,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 20:03:22,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:03:22,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:03:22,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:03:22,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:03:22,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:03:22,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:03:22,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:03:22,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:03:22,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:03:22,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:03:22,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:03:22,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:03:22,703 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_66360868-ebd1-4cd3-9412-fd56c4074580/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0775aa74e42740d69127a88680deb3bae2149559 [2020-11-29 20:03:22,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:03:23,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:03:23,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:03:23,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:03:23,030 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:03:23,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2020-11-29 20:03:23,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/a34411d0e/16611ba8051644d29ee00f8fb085535b/FLAG2b27aa030 [2020-11-29 20:03:23,644 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:03:23,648 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2020-11-29 20:03:23,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/a34411d0e/16611ba8051644d29ee00f8fb085535b/FLAG2b27aa030 [2020-11-29 20:03:23,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/a34411d0e/16611ba8051644d29ee00f8fb085535b [2020-11-29 20:03:23,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:03:23,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 20:03:23,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:03:23,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:03:23,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:03:23,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:03:23" (1/1) ... [2020-11-29 20:03:23,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bf95aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:23, skipping insertion in model container [2020-11-29 20:03:23,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:03:23" (1/1) ... [2020-11-29 20:03:23,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:03:24,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:03:24,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:03:24,713 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-29 20:03:24,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c5f2411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:24, skipping insertion in model container [2020-11-29 20:03:24,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:03:24,716 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-29 20:03:24,720 INFO L168 Benchmark]: Toolchain (without parser) took 768.35 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 87.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:03:24,722 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 69.2 MB. Free memory was 31.1 MB in the beginning and 31.1 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:03:24,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.05 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 87.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:03:24,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 69.2 MB. Free memory was 31.1 MB in the beginning and 31.1 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 762.05 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 87.1 MB in the end (delta: -8.1 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 [2020-11-29 20:03:26,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:03:26,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:03:26,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:03:26,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:03:26,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:03:26,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:03:26,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:03:26,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:03:26,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:03:26,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:03:26,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:03:26,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:03:26,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:03:26,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:03:26,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:03:26,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:03:27,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:03:27,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:03:27,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:03:27,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:03:27,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:03:27,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:03:27,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:03:27,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:03:27,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:03:27,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:03:27,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:03:27,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:03:27,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:03:27,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:03:27,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:03:27,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:03:27,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:03:27,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:03:27,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:03:27,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:03:27,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:03:27,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:03:27,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:03:27,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:03:27,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 20:03:27,058 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:03:27,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:03:27,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:03:27,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:03:27,061 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:03:27,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:03:27,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:03:27,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:03:27,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:03:27,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:03:27,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:03:27,063 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:03:27,063 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:03:27,063 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:03:27,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:03:27,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 20:03:27,064 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 20:03:27,064 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 20:03:27,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:03:27,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:03:27,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:03:27,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:03:27,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:03:27,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:03:27,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:03:27,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:03:27,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:03:27,066 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 20:03:27,066 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 20:03:27,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:03:27,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 20:03:27,067 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_66360868-ebd1-4cd3-9412-fd56c4074580/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0775aa74e42740d69127a88680deb3bae2149559 [2020-11-29 20:03:27,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:03:27,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:03:27,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:03:27,508 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:03:27,509 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:03:27,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2020-11-29 20:03:27,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/9d893ccb8/2732c733bdc44f31b951ca81bbe1edf4/FLAG00aadc80f [2020-11-29 20:03:28,204 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:03:28,214 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2020-11-29 20:03:28,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/9d893ccb8/2732c733bdc44f31b951ca81bbe1edf4/FLAG00aadc80f [2020-11-29 20:03:28,451 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/data/9d893ccb8/2732c733bdc44f31b951ca81bbe1edf4 [2020-11-29 20:03:28,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:03:28,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 20:03:28,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:03:28,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:03:28,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:03:28,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:03:28" (1/1) ... [2020-11-29 20:03:28,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa48e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:28, skipping insertion in model container [2020-11-29 20:03:28,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:03:28" (1/1) ... [2020-11-29 20:03:28,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:03:28,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:03:29,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:03:29,118 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-29 20:03:29,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:03:29,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:03:29,242 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:03:29,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:03:29,447 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:03:29,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29 WrapperNode [2020-11-29 20:03:29,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:03:29,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:03:29,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:03:29,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:03:29,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... [2020-11-29 20:03:29,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... [2020-11-29 20:03:29,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... [2020-11-29 20:03:29,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... [2020-11-29 20:03:29,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... [2020-11-29 20:03:29,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... [2020-11-29 20:03:29,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... [2020-11-29 20:03:29,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:03:29,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:03:29,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:03:29,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:03:29,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:03:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 20:03:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:03:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-29 20:03:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 20:03:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 20:03:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 20:03:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-29 20:03:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-29 20:03:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-29 20:03:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-11-29 20:03:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-11-29 20:03:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-29 20:03:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-11-29 20:03:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-29 20:03:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-29 20:03:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-29 20:03:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-29 20:03:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-29 20:03:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-29 20:03:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-11-29 20:03:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-11-29 20:03:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-11-29 20:03:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-11-29 20:03:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-11-29 20:03:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-11-29 20:03:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-11-29 20:03:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-11-29 20:03:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-11-29 20:03:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-11-29 20:03:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-11-29 20:03:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-11-29 20:03:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-11-29 20:03:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-11-29 20:03:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-29 20:03:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-29 20:03:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-11-29 20:03:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 20:03:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-11-29 20:03:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-11-29 20:03:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-11-29 20:03:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 20:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 20:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 20:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 20:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 20:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 20:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 20:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 20:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 20:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 20:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 20:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-29 20:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-29 20:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-29 20:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 20:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 20:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 20:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 20:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 20:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 20:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 20:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 20:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 20:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 20:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 20:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 20:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 20:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 20:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 20:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 20:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 20:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 20:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 20:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 20:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 20:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 20:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 20:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 20:03:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 20:03:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 20:03:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 20:03:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 20:03:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 20:03:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 20:03:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 20:03:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 20:03:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 20:03:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 20:03:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 20:03:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 20:03:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 20:03:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 20:03:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 20:03:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 20:03:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 20:03:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 20:03:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 20:03:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 20:03:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 20:03:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 20:03:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 20:03:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 20:03:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 20:03:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 20:03:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 20:03:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 20:03:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 20:03:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 20:03:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 20:03:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 20:03:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 20:03:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 20:03:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 20:03:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 20:03:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 20:03:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 20:03:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 20:03:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 20:03:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 20:03:29,651 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 20:03:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 20:03:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 20:03:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 20:03:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 20:03:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 20:03:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 20:03:29,652 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-11-29 20:03:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 20:03:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-11-29 20:03:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-11-29 20:03:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-11-29 20:03:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-11-29 20:03:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-29 20:03:29,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 20:03:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-11-29 20:03:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-11-29 20:03:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-29 20:03:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 20:03:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-29 20:03:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-29 20:03:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-29 20:03:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 20:03:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-29 20:03:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-29 20:03:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-11-29 20:03:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-11-29 20:03:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-11-29 20:03:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-11-29 20:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-11-29 20:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-11-29 20:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-11-29 20:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-11-29 20:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-11-29 20:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 20:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 20:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-11-29 20:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-11-29 20:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-29 20:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-11-29 20:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-11-29 20:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-11-29 20:03:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-11-29 20:03:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-11-29 20:03:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-11-29 20:03:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-11-29 20:03:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-11-29 20:03:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-11-29 20:03:29,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-11-29 20:03:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-11-29 20:03:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-11-29 20:03:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-29 20:03:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-29 20:03:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-11-29 20:03:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 20:03:29,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-29 20:03:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-29 20:03:30,368 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:03:30,872 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:03:31,345 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:03:31,345 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-29 20:03:31,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:03:31 BoogieIcfgContainer [2020-11-29 20:03:31,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:03:31,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:03:31,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:03:31,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:03:31,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:03:28" (1/3) ... [2020-11-29 20:03:31,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f482fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:03:31, skipping insertion in model container [2020-11-29 20:03:31,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:03:29" (2/3) ... [2020-11-29 20:03:31,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f482fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:03:31, skipping insertion in model container [2020-11-29 20:03:31,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:03:31" (3/3) ... [2020-11-29 20:03:31,370 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2020-11-29 20:03:31,382 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:03:31,387 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2020-11-29 20:03:31,401 INFO L253 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2020-11-29 20:03:31,430 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:03:31,430 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 20:03:31,430 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:03:31,431 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:03:31,431 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:03:31,431 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:03:31,431 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:03:31,431 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:03:31,450 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2020-11-29 20:03:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 20:03:31,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:31,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:31,463 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:31,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:31,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2020-11-29 20:03:31,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:31,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694935234] [2020-11-29 20:03:31,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:31,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:03:31,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:31,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:31,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:31,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:31,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694935234] [2020-11-29 20:03:31,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:03:31,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-29 20:03:31,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930937852] [2020-11-29 20:03:31,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:03:31,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:31,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:03:31,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:31,991 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2020-11-29 20:03:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:32,054 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-11-29 20:03:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:03:32,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-29 20:03:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:32,063 INFO L225 Difference]: With dead ends: 53 [2020-11-29 20:03:32,063 INFO L226 Difference]: Without dead ends: 50 [2020-11-29 20:03:32,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-29 20:03:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2020-11-29 20:03:32,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 20:03:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-11-29 20:03:32,109 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2020-11-29 20:03:32,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:32,109 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-11-29 20:03:32,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:03:32,109 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-11-29 20:03:32,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 20:03:32,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:32,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:32,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 20:03:32,323 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:32,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2020-11-29 20:03:32,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:32,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852892825] [2020-11-29 20:03:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:32,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 20:03:32,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:32,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:32,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:32,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852892825] [2020-11-29 20:03:32,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:03:32,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 20:03:32,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848310900] [2020-11-29 20:03:32,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:03:32,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:32,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:03:32,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:03:32,672 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2020-11-29 20:03:32,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:32,745 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-11-29 20:03:32,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:03:32,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-29 20:03:32,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:32,747 INFO L225 Difference]: With dead ends: 46 [2020-11-29 20:03:32,747 INFO L226 Difference]: Without dead ends: 43 [2020-11-29 20:03:32,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:03:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-29 20:03:32,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2020-11-29 20:03:32,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 20:03:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-11-29 20:03:32,754 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2020-11-29 20:03:32,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:32,755 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-11-29 20:03:32,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:03:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-11-29 20:03:32,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 20:03:32,756 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:32,756 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:32,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 20:03:32,958 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2020-11-29 20:03:32,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:32,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878572809] [2020-11-29 20:03:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:33,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:03:33,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:33,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:33,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878572809] [2020-11-29 20:03:33,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:03:33,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-29 20:03:33,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230372939] [2020-11-29 20:03:33,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:03:33,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:33,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:03:33,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:33,281 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2020-11-29 20:03:33,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:33,302 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-11-29 20:03:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:03:33,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-29 20:03:33,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:33,305 INFO L225 Difference]: With dead ends: 30 [2020-11-29 20:03:33,305 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 20:03:33,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:33,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 20:03:33,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 20:03:33,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 20:03:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-11-29 20:03:33,312 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2020-11-29 20:03:33,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:33,313 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-11-29 20:03:33,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:03:33,313 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-11-29 20:03:33,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 20:03:33,316 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:33,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:33,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 20:03:33,517 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:33,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:33,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2020-11-29 20:03:33,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:33,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862731670] [2020-11-29 20:03:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:33,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:03:33,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:34,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:34,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862731670] [2020-11-29 20:03:34,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:03:34,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-11-29 20:03:34,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819202794] [2020-11-29 20:03:34,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 20:03:34,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:34,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 20:03:34,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:03:34,179 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 10 states. [2020-11-29 20:03:34,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:34,507 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-11-29 20:03:34,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 20:03:34,507 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-11-29 20:03:34,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:34,509 INFO L225 Difference]: With dead ends: 50 [2020-11-29 20:03:34,509 INFO L226 Difference]: Without dead ends: 50 [2020-11-29 20:03:34,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:03:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-29 20:03:34,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 29. [2020-11-29 20:03:34,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 20:03:34,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-29 20:03:34,514 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2020-11-29 20:03:34,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:34,515 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-29 20:03:34,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 20:03:34,515 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-29 20:03:34,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 20:03:34,516 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:34,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:34,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 20:03:34,735 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:34,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:34,736 INFO L82 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2020-11-29 20:03:34,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:34,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962197779] [2020-11-29 20:03:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:34,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:03:34,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:34,968 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 20:03:34,968 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:03:34,972 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:03:34,972 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:03:34,973 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 20:03:35,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:35,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:35,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962197779] [2020-11-29 20:03:35,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:03:35,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-29 20:03:35,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687768022] [2020-11-29 20:03:35,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:03:35,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:35,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:03:35,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:35,090 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2020-11-29 20:03:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:35,154 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-11-29 20:03:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:03:35,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-29 20:03:35,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:35,156 INFO L225 Difference]: With dead ends: 35 [2020-11-29 20:03:35,156 INFO L226 Difference]: Without dead ends: 35 [2020-11-29 20:03:35,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-29 20:03:35,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-29 20:03:35,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 20:03:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-11-29 20:03:35,162 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2020-11-29 20:03:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:35,162 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-11-29 20:03:35,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:03:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-11-29 20:03:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 20:03:35,163 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:35,163 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:35,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 20:03:35,364 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:35,365 INFO L82 PathProgramCache]: Analyzing trace with hash -27715938, now seen corresponding path program 1 times [2020-11-29 20:03:35,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:35,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944856407] [2020-11-29 20:03:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:35,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:03:35,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:35,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:35,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:35,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944856407] [2020-11-29 20:03:35,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:03:35,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-29 20:03:35,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791424186] [2020-11-29 20:03:35,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:03:35,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:35,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:03:35,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:35,620 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2020-11-29 20:03:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:35,646 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2020-11-29 20:03:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:03:35,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-29 20:03:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:35,648 INFO L225 Difference]: With dead ends: 42 [2020-11-29 20:03:35,648 INFO L226 Difference]: Without dead ends: 42 [2020-11-29 20:03:35,649 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 [2020-11-29 20:03:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-29 20:03:35,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2020-11-29 20:03:35,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 20:03:35,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-11-29 20:03:35,653 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2020-11-29 20:03:35,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:35,653 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-11-29 20:03:35,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:03:35,653 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-11-29 20:03:35,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 20:03:35,654 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:35,654 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:35,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 20:03:35,867 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:35,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:35,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2020-11-29 20:03:35,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:35,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996850159] [2020-11-29 20:03:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:36,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:03:36,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:36,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:36,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996850159] [2020-11-29 20:03:36,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:03:36,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 20:03:36,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841263668] [2020-11-29 20:03:36,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:03:36,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:36,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:03:36,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:36,116 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2020-11-29 20:03:36,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:36,132 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-29 20:03:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:03:36,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-11-29 20:03:36,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:36,133 INFO L225 Difference]: With dead ends: 27 [2020-11-29 20:03:36,133 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 20:03:36,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:03:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 20:03:36,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 20:03:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 20:03:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-29 20:03:36,136 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2020-11-29 20:03:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:36,137 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-29 20:03:36,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:03:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-29 20:03:36,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 20:03:36,137 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:36,137 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:36,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 20:03:36,345 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:36,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:36,346 INFO L82 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2020-11-29 20:03:36,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:36,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006213611] [2020-11-29 20:03:36,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:36,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:03:36,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:36,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:03:36,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006213611] [2020-11-29 20:03:36,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:03:36,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2020-11-29 20:03:36,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823919761] [2020-11-29 20:03:36,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 20:03:36,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:36,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 20:03:36,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:03:36,849 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-11-29 20:03:37,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:37,119 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2020-11-29 20:03:37,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 20:03:37,120 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-11-29 20:03:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:37,121 INFO L225 Difference]: With dead ends: 55 [2020-11-29 20:03:37,121 INFO L226 Difference]: Without dead ends: 55 [2020-11-29 20:03:37,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:03:37,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-29 20:03:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2020-11-29 20:03:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 20:03:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-11-29 20:03:37,128 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2020-11-29 20:03:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:37,128 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-11-29 20:03:37,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 20:03:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-11-29 20:03:37,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:03:37,129 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:37,129 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:37,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-29 20:03:37,340 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:37,341 INFO L82 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2020-11-29 20:03:37,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:37,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367025328] [2020-11-29 20:03:37,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-29 20:03:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:37,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 20:03:37,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:37,542 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 20:03:37,542 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:03:37,544 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:03:37,544 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:03:37,545 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 20:03:37,643 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:03:37,643 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2020-11-29 20:03:37,644 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:03:37,678 INFO L625 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2020-11-29 20:03:37,678 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:03:37,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2020-11-29 20:03:37,743 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2020-11-29 20:03:37,745 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:03:37,756 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-11-29 20:03:37,757 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 20:03:37,757 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:11 [2020-11-29 20:03:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:37,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:42,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:42,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367025328] [2020-11-29 20:03:42,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:03:42,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2020-11-29 20:03:42,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923309603] [2020-11-29 20:03:42,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 20:03:42,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:42,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 20:03:42,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=143, Unknown=2, NotChecked=0, Total=182 [2020-11-29 20:03:42,131 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2020-11-29 20:03:44,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:03:44,399 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2020-11-29 20:03:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 20:03:44,400 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-11-29 20:03:44,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:03:44,401 INFO L225 Difference]: With dead ends: 50 [2020-11-29 20:03:44,401 INFO L226 Difference]: Without dead ends: 50 [2020-11-29 20:03:44,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=37, Invalid=143, Unknown=2, NotChecked=0, Total=182 [2020-11-29 20:03:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-29 20:03:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2020-11-29 20:03:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 20:03:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-11-29 20:03:44,406 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2020-11-29 20:03:44,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:03:44,406 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-11-29 20:03:44,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 20:03:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-11-29 20:03:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:03:44,407 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:03:44,407 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:03:44,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-29 20:03:44,608 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:03:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:03:44,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2020-11-29 20:03:44,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:03:44,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415539499] [2020-11-29 20:03:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/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 [2020-11-29 20:03:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:03:44,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 20:03:44,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:03:44,832 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 20:03:44,833 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:03:44,838 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:03:44,839 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:03:44,839 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2020-11-29 20:03:44,998 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-29 20:03:44,999 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:03:45,014 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-11-29 20:03:45,015 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:03:45,015 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:11 [2020-11-29 20:03:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:45,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:03:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:03:45,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415539499] [2020-11-29 20:03:45,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:03:45,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-11-29 20:03:45,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997953555] [2020-11-29 20:03:45,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 20:03:45,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:03:45,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 20:03:45,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:03:45,981 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2020-11-29 20:04:33,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:04:33,084 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-11-29 20:04:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 20:04:33,085 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2020-11-29 20:04:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:04:33,086 INFO L225 Difference]: With dead ends: 53 [2020-11-29 20:04:33,086 INFO L226 Difference]: Without dead ends: 53 [2020-11-29 20:04:33,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=109, Invalid=435, Unknown=8, NotChecked=0, Total=552 [2020-11-29 20:04:33,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-29 20:04:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2020-11-29 20:04:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 20:04:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-11-29 20:04:33,101 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2020-11-29 20:04:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:04:33,102 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-11-29 20:04:33,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 20:04:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-11-29 20:04:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:04:33,105 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:04:33,105 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:04:33,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-29 20:04:33,309 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:04:33,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:04:33,310 INFO L82 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2020-11-29 20:04:33,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:04:33,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47219100] [2020-11-29 20:04:33,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/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 [2020-11-29 20:04:33,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 20:04:33,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 20:04:33,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:04:33,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:04:33,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:04:33,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:04:33,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47219100] [2020-11-29 20:04:33,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:04:33,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 20:04:33,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009648318] [2020-11-29 20:04:33,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:04:33,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:04:33,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:04:33,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:04:33,607 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2020-11-29 20:04:33,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:04:33,649 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2020-11-29 20:04:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:04:33,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 20:04:33,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:04:33,650 INFO L225 Difference]: With dead ends: 43 [2020-11-29 20:04:33,651 INFO L226 Difference]: Without dead ends: 43 [2020-11-29 20:04:33,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:04:33,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-29 20:04:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2020-11-29 20:04:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 20:04:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-11-29 20:04:33,656 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2020-11-29 20:04:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:04:33,657 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-11-29 20:04:33,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:04:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-11-29 20:04:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:04:33,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:04:33,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:04:33,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-29 20:04:33,862 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:04:33,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:04:33,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2020-11-29 20:04:33,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:04:33,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100922445] [2020-11-29 20:04:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/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 [2020-11-29 20:04:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:04:34,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 20:04:34,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:04:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 20:04:38,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:04:50,147 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store |c_#valid| c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_23 (_ bv1 1)))) (and (= (select |c_old(#valid)| v_entry_point_~p~0.base_23) (_ bv0 1)) (= (select .cse0 v_entry_point_~q~0.base_17) (_ bv0 1)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1))))))))) is different from false [2020-11-29 20:04:52,164 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store |c_#valid| c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_23 (_ bv1 1)))) (and (= (select |c_old(#valid)| v_entry_point_~p~0.base_23) (_ bv0 1)) (= (select .cse0 v_entry_point_~q~0.base_17) (_ bv0 1)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1))))))))) is different from true [2020-11-29 20:04:52,202 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| c_entry_point_~q~0.base (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_23 (_ bv1 1)))) (and (= (select |c_old(#valid)| v_entry_point_~p~0.base_23) (_ bv0 1)) (= (select .cse0 v_entry_point_~q~0.base_17) (_ bv0 1)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1))))))))) is different from false [2020-11-29 20:04:54,205 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| c_entry_point_~q~0.base (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_23 (_ bv1 1)))) (and (= (select |c_old(#valid)| v_entry_point_~p~0.base_23) (_ bv0 1)) (= (select .cse0 v_entry_point_~q~0.base_17) (_ bv0 1)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1))))))))) is different from true [2020-11-29 20:04:54,261 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |c_entry_point_#t~ret39.base| (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (exists ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_23 (_ bv1 1)))) (and (= (select |c_old(#valid)| v_entry_point_~p~0.base_23) (_ bv0 1)) (= (select .cse0 v_entry_point_~q~0.base_17) (_ bv0 1)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1))))))))) is different from false [2020-11-29 20:04:54,373 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1))) (|v_entry_point_#t~ret39.base_45| (_ BitVec 32))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |v_entry_point_#t~ret39.base_45| (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1))) (not (= (select |c_#valid| |v_entry_point_#t~ret39.base_45|) (_ bv0 1))) (exists ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_23 (_ bv1 1)))) (and (= (select |c_old(#valid)| v_entry_point_~p~0.base_23) (_ bv0 1)) (= (select .cse0 v_entry_point_~q~0.base_17) (_ bv0 1)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1))))))))) is different from false [2020-11-29 20:04:54,418 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2020-11-29 20:04:54,430 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_9|]} [2020-11-29 20:04:54,453 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_9| (Array (_ BitVec 32) (_ BitVec 1))) (v_entry_point_~p~0.base_BEFORE_CALL_10 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_2 (_ BitVec 32)) (v_prenex_3 (_ BitVec 32))) (let ((.cse0 (store |v_old(#valid)_BEFORE_CALL_9| v_prenex_2 (_ bv1 1)))) (and (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_9| v_prenex_2)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_prenex_3 (_ bv0 1)) v_prenex_2 (_ bv0 1)))) (= (_ bv0 1) (select .cse0 v_prenex_3))))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_10 (_ bv0 1))) (exists ((|v_entry_point_#t~ret39.base_45| (_ BitVec 32)) (v_prenex_1 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| |v_entry_point_#t~ret39.base_45| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_10 (_ bv0 1)) v_prenex_1)) (forall ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse1 (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~p~0.base_23 (_ bv1 1)))) (or (= (store (store .cse1 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1)) v_prenex_1) (not (= (_ bv0 1) (select .cse1 v_entry_point_~q~0.base_17))) (not (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~p~0.base_23)))))) (= (select |c_old(#valid)| |v_entry_point_#t~ret39.base_45|) (_ bv0 1)))))) is different from false [2020-11-29 20:04:54,464 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_9| (Array (_ BitVec 32) (_ BitVec 1))) (v_entry_point_~p~0.base_BEFORE_CALL_10 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_2 (_ BitVec 32)) (v_prenex_3 (_ BitVec 32))) (let ((.cse0 (store |v_old(#valid)_BEFORE_CALL_9| v_prenex_2 (_ bv1 1)))) (and (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_9| v_prenex_2)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_prenex_3 (_ bv0 1)) v_prenex_2 (_ bv0 1)))) (= (_ bv0 1) (select .cse0 v_prenex_3))))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_10 (_ bv0 1))) (exists ((|v_entry_point_#t~ret39.base_45| (_ BitVec 32)) (v_prenex_1 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| |v_entry_point_#t~ret39.base_45| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_10 (_ bv0 1)) v_prenex_1)) (forall ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse1 (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~p~0.base_23 (_ bv1 1)))) (or (= (store (store .cse1 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1)) v_prenex_1) (not (= (_ bv0 1) (select .cse1 v_entry_point_~q~0.base_17))) (not (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~p~0.base_23)))))) (= (select |c_old(#valid)| |v_entry_point_#t~ret39.base_45|) (_ bv0 1)))))) is different from true [2020-11-29 20:04:54,490 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2020-11-29 20:04:54,501 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_9|]} [2020-11-29 20:04:54,558 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2020-11-29 20:04:54,570 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_9|]} [2020-11-29 20:04:54,600 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_9| (Array (_ BitVec 32) (_ BitVec 1))) (v_entry_point_~p~0.base_BEFORE_CALL_10 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1))) (|v_ldv_malloc_#res.base_94| (_ BitVec 32))) (or (not (= (select |c_#valid| |v_ldv_malloc_#res.base_94|) (_ bv0 1))) (exists ((v_prenex_2 (_ BitVec 32)) (v_prenex_3 (_ BitVec 32))) (let ((.cse0 (store |v_old(#valid)_BEFORE_CALL_9| v_prenex_2 (_ bv1 1)))) (and (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_9| v_prenex_2)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_prenex_3 (_ bv0 1)) v_prenex_2 (_ bv0 1)))) (= (_ bv0 1) (select .cse0 v_prenex_3))))) (exists ((|v_entry_point_#t~ret39.base_45| (_ BitVec 32)) (v_prenex_1 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| |v_entry_point_#t~ret39.base_45| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_10 (_ bv0 1)) v_prenex_1)) (forall ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse1 (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~p~0.base_23 (_ bv1 1)))) (or (= (store (store .cse1 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1)) v_prenex_1) (not (= (_ bv0 1) (select .cse1 v_entry_point_~q~0.base_17))) (not (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~p~0.base_23)))))) (= (select |c_old(#valid)| |v_entry_point_#t~ret39.base_45|) (_ bv0 1)))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |v_ldv_malloc_#res.base_94| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_10 (_ bv0 1))))) is different from true [2020-11-29 20:04:54,636 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2020-11-29 20:04:54,646 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_9|]} [2020-11-29 20:04:54,686 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1))) (|v_entry_point_#t~ret39.base_45| (_ BitVec 32))) (or (not (= (select |c_#valid| |v_entry_point_#t~ret39.base_45|) (_ bv0 1))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |v_entry_point_#t~ret39.base_45| (_ bv0 1)) |c_entry_point_#t~ret38.base| (_ bv0 1))) (exists ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| v_entry_point_~p~0.base_23 (_ bv1 1)))) (and (= (select |c_old(#valid)| v_entry_point_~p~0.base_23) (_ bv0 1)) (= (select .cse0 v_entry_point_~q~0.base_17) (_ bv0 1)) (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse0 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1))))))))) is different from false [2020-11-29 20:04:56,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:04:56,995 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_10|]} [2020-11-29 20:04:57,025 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_10| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1))) (|v_entry_point_#t~ret39.base_45| (_ BitVec 32))) (or (exists ((|v_entry_point_#t~ret38.base_53| (_ BitVec 32)) (v_prenex_5 (_ BitVec 32)) (v_prenex_4 (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse0 (store |c_old(#valid)| |v_entry_point_#t~ret38.base_53| (_ bv1 1)))) (and (not (= (store (store .cse0 v_prenex_5 (_ bv0 1)) |v_entry_point_#t~ret38.base_53| (_ bv0 1)) v_prenex_4)) (= (select .cse0 v_prenex_5) (_ bv0 1)) (forall ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse1 (store |v_old(#valid)_BEFORE_CALL_10| v_entry_point_~p~0.base_23 (_ bv1 1)))) (or (not (= (select .cse1 v_entry_point_~q~0.base_17) (_ bv0 1))) (= (store (store .cse1 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1)) v_prenex_4) (not (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_10| v_entry_point_~p~0.base_23)))))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_53|))))) (not (= (select |c_#valid| |v_entry_point_#t~ret39.base_45|) (_ bv0 1))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store |c_#valid| |v_entry_point_#t~ret39.base_45| (_ bv0 1)) |c_ldv_malloc_#res.base| (_ bv0 1))) (exists ((v_prenex_6 (_ BitVec 32)) (v_prenex_7 (_ BitVec 32))) (let ((.cse2 (store |v_old(#valid)_BEFORE_CALL_10| v_prenex_6 (_ bv1 1)))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse2 v_prenex_7 (_ bv0 1)) v_prenex_6 (_ bv0 1)))) (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_10| v_prenex_6)) (= (select .cse2 v_prenex_7) (_ bv0 1))))))) is different from true [2020-11-29 20:04:57,053 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:04:57,063 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_10|]} [2020-11-29 20:04:57,151 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:04:57,165 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_10|]} [2020-11-29 20:04:57,205 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_10| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1))) (|v_ldv_malloc_#res.base_98| (_ BitVec 32)) (|v_entry_point_#t~ret39.base_45| (_ BitVec 32))) (let ((.cse2 (store |c_#valid| |v_ldv_malloc_#res.base_98| (_ bv1 1)))) (or (exists ((|v_entry_point_#t~ret38.base_53| (_ BitVec 32)) (v_prenex_5 (_ BitVec 32)) (v_prenex_4 (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse0 (store |c_old(#valid)| |v_entry_point_#t~ret38.base_53| (_ bv1 1)))) (and (not (= (store (store .cse0 v_prenex_5 (_ bv0 1)) |v_entry_point_#t~ret38.base_53| (_ bv0 1)) v_prenex_4)) (= (select .cse0 v_prenex_5) (_ bv0 1)) (forall ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse1 (store |v_old(#valid)_BEFORE_CALL_10| v_entry_point_~p~0.base_23 (_ bv1 1)))) (or (not (= (select .cse1 v_entry_point_~q~0.base_17) (_ bv0 1))) (= (store (store .cse1 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1)) v_prenex_4) (not (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_10| v_entry_point_~p~0.base_23)))))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_53|))))) (not (= (_ bv0 1) (select .cse2 |v_entry_point_#t~ret39.base_45|))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse2 |v_entry_point_#t~ret39.base_45| (_ bv0 1)) |v_ldv_malloc_#res.base_98| (_ bv0 1))) (exists ((v_prenex_6 (_ BitVec 32)) (v_prenex_7 (_ BitVec 32))) (let ((.cse3 (store |v_old(#valid)_BEFORE_CALL_10| v_prenex_6 (_ bv1 1)))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse3 v_prenex_7 (_ bv0 1)) v_prenex_6 (_ bv0 1)))) (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_10| v_prenex_6)) (= (select .cse3 v_prenex_7) (_ bv0 1))))) (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_98|)))))) is different from false [2020-11-29 20:04:57,212 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_10| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1))) (|v_ldv_malloc_#res.base_98| (_ BitVec 32)) (|v_entry_point_#t~ret39.base_45| (_ BitVec 32))) (let ((.cse2 (store |c_#valid| |v_ldv_malloc_#res.base_98| (_ bv1 1)))) (or (exists ((|v_entry_point_#t~ret38.base_53| (_ BitVec 32)) (v_prenex_5 (_ BitVec 32)) (v_prenex_4 (Array (_ BitVec 32) (_ BitVec 1)))) (let ((.cse0 (store |c_old(#valid)| |v_entry_point_#t~ret38.base_53| (_ bv1 1)))) (and (not (= (store (store .cse0 v_prenex_5 (_ bv0 1)) |v_entry_point_#t~ret38.base_53| (_ bv0 1)) v_prenex_4)) (= (select .cse0 v_prenex_5) (_ bv0 1)) (forall ((v_entry_point_~p~0.base_23 (_ BitVec 32)) (v_entry_point_~q~0.base_17 (_ BitVec 32))) (let ((.cse1 (store |v_old(#valid)_BEFORE_CALL_10| v_entry_point_~p~0.base_23 (_ bv1 1)))) (or (not (= (select .cse1 v_entry_point_~q~0.base_17) (_ bv0 1))) (= (store (store .cse1 v_entry_point_~q~0.base_17 (_ bv0 1)) v_entry_point_~p~0.base_23 (_ bv0 1)) v_prenex_4) (not (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_10| v_entry_point_~p~0.base_23)))))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_53|))))) (not (= (_ bv0 1) (select .cse2 |v_entry_point_#t~ret39.base_45|))) (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse2 |v_entry_point_#t~ret39.base_45| (_ bv0 1)) |v_ldv_malloc_#res.base_98| (_ bv0 1))) (exists ((v_prenex_6 (_ BitVec 32)) (v_prenex_7 (_ BitVec 32))) (let ((.cse3 (store |v_old(#valid)_BEFORE_CALL_10| v_prenex_6 (_ bv1 1)))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store (store .cse3 v_prenex_7 (_ bv0 1)) v_prenex_6 (_ bv0 1)))) (= (_ bv0 1) (select |v_old(#valid)_BEFORE_CALL_10| v_prenex_6)) (= (select .cse3 v_prenex_7) (_ bv0 1))))) (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_98|)))))) is different from true [2020-11-29 20:04:57,273 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:04:57,288 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_8|], 24=[|v_old(#valid)_BEFORE_CALL_10|]} [2020-11-29 20:04:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2020-11-29 20:04:57,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100922445] [2020-11-29 20:04:57,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:04:57,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2020-11-29 20:04:57,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390134248] [2020-11-29 20:04:57,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 20:04:57,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:04:57,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 20:04:57,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=114, Unknown=30, NotChecked=270, Total=462 [2020-11-29 20:04:57,362 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 10 states. [2020-11-29 20:05:41,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:05:41,800 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2020-11-29 20:05:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 20:05:41,801 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-11-29 20:05:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:05:41,802 INFO L225 Difference]: With dead ends: 52 [2020-11-29 20:05:41,802 INFO L226 Difference]: Without dead ends: 42 [2020-11-29 20:05:41,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=48, Invalid=114, Unknown=30, NotChecked=270, Total=462 [2020-11-29 20:05:41,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-29 20:05:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2020-11-29 20:05:41,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 20:05:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-11-29 20:05:41,808 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 28 [2020-11-29 20:05:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:05:41,809 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-11-29 20:05:41,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 20:05:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-11-29 20:05:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:05:41,810 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:05:41,810 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:05:42,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-29 20:05:42,011 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, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:05:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:05:42,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1152618939, now seen corresponding path program 1 times [2020-11-29 20:05:42,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:05:42,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448376203] [2020-11-29 20:05:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/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 [2020-11-29 20:05:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:42,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-29 20:05:42,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:05:42,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 20:05:42,203 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-11-29 20:05:42,204 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:05:42,217 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-11-29 20:05:42,218 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 20:05:42,218 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-11-29 20:05:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:05:46,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:05:54,419 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= (store (store |c_#valid| c_entry_point_~q~0.base (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|) (exists ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (and (not (= v_entry_point_~p~0.base_27 (_ bv0 32))) (= (_ bv0 1) (select |c_old(#valid)| v_entry_point_~p~0.base_27)) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_old(#valid)| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)))))))) is different from false [2020-11-29 20:05:54,454 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= (store (store |c_#valid| |c_entry_point_#t~ret39.base| (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|) (exists ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (and (not (= v_entry_point_~p~0.base_27 (_ bv0 32))) (= (_ bv0 1) (select |c_old(#valid)| v_entry_point_~p~0.base_27)) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_old(#valid)| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)))))))) is different from false [2020-11-29 20:05:54,560 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) c_entry_point_~p~0.base (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|) (exists ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (and (not (= v_entry_point_~p~0.base_27 (_ bv0 32))) (= (_ bv0 1) (select |c_old(#valid)| v_entry_point_~p~0.base_27)) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_old(#valid)| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)))))))) is different from false [2020-11-29 20:05:54,581 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-11-29 20:05:54,589 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_15|]} [2020-11-29 20:05:54,604 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~p~0.base_BEFORE_CALL_12 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_15| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_9 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_15| v_prenex_9) (_ bv0 1)) (not (= v_prenex_9 (_ bv0 32))) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_prenex_9 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_9 (_ bv0 1)))))) (exists ((v_prenex_8 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_8)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (= (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_8) (not (= (select |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27) (_ bv0 1))) (= v_entry_point_~p~0.base_27 (_ bv0 32)))))) (= (store (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|))) is different from false [2020-11-29 20:05:54,611 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~p~0.base_BEFORE_CALL_12 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_15| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_9 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_15| v_prenex_9) (_ bv0 1)) (not (= v_prenex_9 (_ bv0 32))) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_prenex_9 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_9 (_ bv0 1)))))) (exists ((v_prenex_8 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_8)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (= (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_8) (not (= (select |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27) (_ bv0 1))) (= v_entry_point_~p~0.base_27 (_ bv0 32)))))) (= (store (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|))) is different from true [2020-11-29 20:05:54,622 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-11-29 20:05:54,627 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_15|]} [2020-11-29 20:05:54,649 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-11-29 20:05:54,657 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_15|]} [2020-11-29 20:05:54,671 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~p~0.base_BEFORE_CALL_12 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_15| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_9 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_15| v_prenex_9) (_ bv0 1)) (not (= v_prenex_9 (_ bv0 32))) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_prenex_9 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_9 (_ bv0 1)))))) (exists ((v_prenex_8 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_8)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (= (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_8) (not (= (select |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27) (_ bv0 1))) (= v_entry_point_~p~0.base_27 (_ bv0 32)))))) (= (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|))) is different from false [2020-11-29 20:05:54,680 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~p~0.base_BEFORE_CALL_12 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_15| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_9 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_15| v_prenex_9) (_ bv0 1)) (not (= v_prenex_9 (_ bv0 32))) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_prenex_9 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_9 (_ bv0 1)))))) (exists ((v_prenex_8 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_8)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (= (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_8) (not (= (select |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27) (_ bv0 1))) (= v_entry_point_~p~0.base_27 (_ bv0 32)))))) (= (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|))) is different from true [2020-11-29 20:05:54,688 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-11-29 20:05:54,693 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_15|]} [2020-11-29 20:05:54,711 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (and (not (= v_entry_point_~p~0.base_27 (_ bv0 32))) (= (_ bv0 1) (select |c_old(#valid)| v_entry_point_~p~0.base_27)) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_old(#valid)| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)))))) (= (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) |c_entry_point_#t~ret38.base| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|))) is different from false [2020-11-29 20:05:54,813 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~ret38.base_62| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_entry_point_#t~ret38.base_62|))) (= |v_entry_point_#t~ret38.base_62| (_ bv0 32)) (exists ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (and (not (= v_entry_point_~p~0.base_27 (_ bv0 32))) (= (_ bv0 1) (select |c_old(#valid)| v_entry_point_~p~0.base_27)) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_old(#valid)| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)))))) (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_#valid| |v_entry_point_#t~ret38.base_62| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_entry_point_#t~ret38.base_62| (_ bv0 1))))) is different from false [2020-11-29 20:05:54,828 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:05:54,836 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_16|]} [2020-11-29 20:05:54,849 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_16| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_#t~ret38.base_62| (_ BitVec 32)) (v_prenex_10 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store (store |c_old(#valid)| |v_entry_point_#t~ret38.base_62| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_entry_point_#t~ret38.base_62| (_ bv0 1)) v_prenex_10)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (not (= (select |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27) (_ bv0 1))) (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_10) (= v_entry_point_~p~0.base_27 (_ bv0 32)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_62|)) (not (= |v_entry_point_#t~ret38.base_62| (_ bv0 32))))) (exists ((v_prenex_11 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_16| v_prenex_11) (_ bv0 1)) (not (= v_prenex_11 (_ bv0 32))) (not (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_prenex_11 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_11 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|)))) (= |v_old(#valid)_BEFORE_CALL_14| (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) |c_ldv_malloc_#res.base| (_ bv0 1))))) is different from false [2020-11-29 20:05:54,857 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_16| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_#t~ret38.base_62| (_ BitVec 32)) (v_prenex_10 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store (store |c_old(#valid)| |v_entry_point_#t~ret38.base_62| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_entry_point_#t~ret38.base_62| (_ bv0 1)) v_prenex_10)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (not (= (select |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27) (_ bv0 1))) (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_10) (= v_entry_point_~p~0.base_27 (_ bv0 32)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_62|)) (not (= |v_entry_point_#t~ret38.base_62| (_ bv0 32))))) (exists ((v_prenex_11 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_16| v_prenex_11) (_ bv0 1)) (not (= v_prenex_11 (_ bv0 32))) (not (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_prenex_11 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_11 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|)))) (= |v_old(#valid)_BEFORE_CALL_14| (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) |c_ldv_malloc_#res.base| (_ bv0 1))))) is different from true [2020-11-29 20:05:54,866 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:05:54,877 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_16|]} [2020-11-29 20:05:54,898 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:05:54,906 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_16|]} [2020-11-29 20:05:54,920 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_malloc_#res.base_114| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_16| (Array (_ BitVec 32) (_ BitVec 1)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_114|))) (exists ((|v_entry_point_#t~ret38.base_62| (_ BitVec 32)) (v_prenex_10 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store (store |c_old(#valid)| |v_entry_point_#t~ret38.base_62| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_entry_point_#t~ret38.base_62| (_ bv0 1)) v_prenex_10)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (not (= (select |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27) (_ bv0 1))) (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_10) (= v_entry_point_~p~0.base_27 (_ bv0 32)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_62|)) (not (= |v_entry_point_#t~ret38.base_62| (_ bv0 32))))) (exists ((v_prenex_11 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_16| v_prenex_11) (_ bv0 1)) (not (= v_prenex_11 (_ bv0 32))) (not (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_prenex_11 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_11 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|)))) (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_#valid| |v_ldv_malloc_#res.base_114| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_ldv_malloc_#res.base_114| (_ bv0 1))) (= (_ bv0 32) |v_ldv_malloc_#res.base_114|))) is different from false [2020-11-29 20:05:54,926 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ldv_malloc_#res.base_114| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_16| (Array (_ BitVec 32) (_ BitVec 1)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_114|))) (exists ((|v_entry_point_#t~ret38.base_62| (_ BitVec 32)) (v_prenex_10 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store (store |c_old(#valid)| |v_entry_point_#t~ret38.base_62| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_entry_point_#t~ret38.base_62| (_ bv0 1)) v_prenex_10)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (not (= (select |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27) (_ bv0 1))) (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_10) (= v_entry_point_~p~0.base_27 (_ bv0 32)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_62|)) (not (= |v_entry_point_#t~ret38.base_62| (_ bv0 32))))) (exists ((v_prenex_11 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_16| v_prenex_11) (_ bv0 1)) (not (= v_prenex_11 (_ bv0 32))) (not (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_prenex_11 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_11 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|)))) (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |c_#valid| |v_ldv_malloc_#res.base_114| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_ldv_malloc_#res.base_114| (_ bv0 1))) (= (_ bv0 32) |v_ldv_malloc_#res.base_114|))) is different from true [2020-11-29 20:05:54,939 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-11-29 20:05:54,946 INFO L441 ElimStorePlain]: Different costs {0=[|v_old(#valid)_BEFORE_CALL_14|], 7=[|v_old(#valid)_BEFORE_CALL_16|]} [2020-11-29 20:05:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2020-11-29 20:05:55,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448376203] [2020-11-29 20:05:55,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:05:55,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2020-11-29 20:05:55,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888099571] [2020-11-29 20:05:55,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-11-29 20:05:55,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:05:55,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-11-29 20:05:55,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=228, Unknown=43, NotChecked=360, Total=702 [2020-11-29 20:05:55,090 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 27 states. [2020-11-29 20:06:19,639 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_#valid| (store |c_old(#valid)| |c_ldv_malloc_#res.base| (_ bv1 1))) (= (select |c_old(#valid)| |c_ldv_malloc_#res.base|) (_ bv0 1)) (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_16| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_#t~ret38.base_62| (_ BitVec 32)) (v_prenex_10 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store (store |c_old(#valid)| |v_entry_point_#t~ret38.base_62| (_ bv1 1)) (_ bv0 32) (_ bv0 1)) |v_entry_point_#t~ret38.base_62| (_ bv0 1)) v_prenex_10)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (not (= (select |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27) (_ bv0 1))) (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_10) (= v_entry_point_~p~0.base_27 (_ bv0 32)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_#t~ret38.base_62|)) (not (= |v_entry_point_#t~ret38.base_62| (_ bv0 32))))) (exists ((v_prenex_11 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_16| v_prenex_11) (_ bv0 1)) (not (= v_prenex_11 (_ bv0 32))) (not (= (store (store (store |v_old(#valid)_BEFORE_CALL_16| v_prenex_11 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_11 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|)))) (= |v_old(#valid)_BEFORE_CALL_14| (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) |c_ldv_malloc_#res.base| (_ bv0 1))))) (not (= |c_ldv_malloc_#res.base| (_ bv0 32)))) is different from false [2020-11-29 20:06:46,233 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_old(#valid)| |c_#valid|) (forall ((v_entry_point_~p~0.base_BEFORE_CALL_12 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_15| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_9 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_15| v_prenex_9) (_ bv0 1)) (not (= v_prenex_9 (_ bv0 32))) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_prenex_9 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_9 (_ bv0 1)))))) (exists ((v_prenex_8 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_8)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (= (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_8) (not (= (select |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27) (_ bv0 1))) (= v_entry_point_~p~0.base_27 (_ bv0 32)))))) (= (store (store |c_#valid| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|)))) is different from false [2020-11-29 20:06:48,400 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ldv_malloc_#res.base| (_ bv0 32)) (= |c_old(#valid)| |c_#valid|) (forall ((v_entry_point_~p~0.base_BEFORE_CALL_12 (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1))) (|v_old(#valid)_BEFORE_CALL_15| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_prenex_9 (_ BitVec 32))) (and (= (select |v_old(#valid)_BEFORE_CALL_15| v_prenex_9) (_ bv0 1)) (not (= v_prenex_9 (_ bv0 32))) (not (= |v_old(#valid)_BEFORE_CALL_14| (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_prenex_9 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_prenex_9 (_ bv0 1)))))) (exists ((v_prenex_8 (Array (_ BitVec 32) (_ BitVec 1)))) (and (not (= (store (store |c_old(#valid)| (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_8)) (forall ((v_entry_point_~p~0.base_27 (_ BitVec 32))) (or (= (store (store (store |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27 (_ bv1 1)) (_ bv0 32) (_ bv0 1)) v_entry_point_~p~0.base_27 (_ bv0 1)) v_prenex_8) (not (= (select |v_old(#valid)_BEFORE_CALL_15| v_entry_point_~p~0.base_27) (_ bv0 1))) (= v_entry_point_~p~0.base_27 (_ bv0 32)))))) (= (store (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) v_entry_point_~p~0.base_BEFORE_CALL_12 (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|)))) is different from false [2020-11-29 20:07:15,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:07:15,002 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2020-11-29 20:07:15,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-29 20:07:15,003 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 28 [2020-11-29 20:07:15,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:07:15,004 INFO L225 Difference]: With dead ends: 52 [2020-11-29 20:07:15,004 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 20:07:15,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 12 IntricatePredicates, 1 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 30.7s TimeCoverageRelationStatistics Valid=109, Invalid=324, Unknown=77, NotChecked=612, Total=1122 [2020-11-29 20:07:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 20:07:15,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-11-29 20:07:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 20:07:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-29 20:07:15,011 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 28 [2020-11-29 20:07:15,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:07:15,011 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-29 20:07:15,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-11-29 20:07:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-29 20:07:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:07:15,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:07:15,012 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:07:15,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-11-29 20:07:15,229 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, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 20:07:15,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:07:15,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1037197721, now seen corresponding path program 2 times [2020-11-29 20:07:15,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:07:15,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881611018] [2020-11-29 20:07:15,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/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 [2020-11-29 20:07:15,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 20:07:15,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 20:07:15,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:07:15,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:07:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:07:15,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:07:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:07:15,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881611018] [2020-11-29 20:07:15,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:07:15,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-11-29 20:07:15,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058417157] [2020-11-29 20:07:15,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:07:15,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:07:15,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:07:15,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:07:15,579 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-29 20:07:15,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:07:15,613 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-11-29 20:07:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:07:15,615 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-11-29 20:07:15,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:07:15,615 INFO L225 Difference]: With dead ends: 23 [2020-11-29 20:07:15,615 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:07:15,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:07:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:07:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:07:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:07:15,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:07:15,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-11-29 20:07:15,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:07:15,616 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:07:15,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:07:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:07:15,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:07:15,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-11-29 20:07:15,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:07:15 BoogieIcfgContainer [2020-11-29 20:07:15,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:07:15,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:07:15,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:07:15,830 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:07:15,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:03:31" (3/4) ... [2020-11-29 20:07:15,837 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:07:15,846 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_submit_msg [2020-11-29 20:07:15,847 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 20:07:15,847 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_create [2020-11-29 20:07:15,847 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_del [2020-11-29 20:07:15,847 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_positive [2020-11-29 20:07:15,847 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_del [2020-11-29 20:07:15,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2020-11-29 20:07:15,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2020-11-29 20:07:15,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_free [2020-11-29 20:07:15,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-29 20:07:15,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_del [2020-11-29 20:07:15,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_get [2020-11-29 20:07:15,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put [2020-11-29 20:07:15,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2020-11-29 20:07:15,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init [2020-11-29 20:07:15,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~VOID [2020-11-29 20:07:15,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_sub_return [2020-11-29 20:07:15,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add_tail [2020-11-29 20:07:15,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2020-11-29 20:07:15,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_nonpositive [2020-11-29 20:07:15,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2020-11-29 20:07:15,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure entry_point [2020-11-29 20:07:15,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_alloc [2020-11-29 20:07:15,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_init_internal [2020-11-29 20:07:15,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_init [2020-11-29 20:07:15,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2020-11-29 20:07:15,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_destroy_msgs [2020-11-29 20:07:15,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_msg_fill [2020-11-29 20:07:15,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_sub [2020-11-29 20:07:15,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2020-11-29 20:07:15,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_atomic_add_return [2020-11-29 20:07:15,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2020-11-29 20:07:15,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_release [2020-11-29 20:07:15,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2020-11-29 20:07:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2020-11-29 20:07:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_cleanup [2020-11-29 20:07:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2020-11-29 20:07:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2020-11-29 20:07:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2020-11-29 20:07:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-29 20:07:15,852 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2020-11-29 20:07:15,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_set_drvdata [2020-11-29 20:07:15,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2020-11-29 20:07:15,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kref_put [2020-11-29 20:07:15,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_get [2020-11-29 20:07:15,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_dev_get_drvdata [2020-11-29 20:07:15,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-11-29 20:07:15,868 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 20:07:15,868 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 20:07:15,869 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 20:07:15,869 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:07:15,923 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_66360868-ebd1-4cd3-9412-fd56c4074580/bin/uautomizer/witness.graphml [2020-11-29 20:07:15,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:07:15,925 INFO L168 Benchmark]: Toolchain (without parser) took 227469.64 ms. Allocated memory was 56.6 MB in the beginning and 151.0 MB in the end (delta: 94.4 MB). Free memory was 33.9 MB in the beginning and 108.1 MB in the end (delta: -74.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:15,926 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 38.7 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:07:15,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 991.14 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.6 MB in the beginning and 41.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:15,927 INFO L168 Benchmark]: Boogie Preprocessor took 99.25 ms. Allocated memory is still 69.2 MB. Free memory was 41.9 MB in the beginning and 37.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:15,928 INFO L168 Benchmark]: RCFGBuilder took 1795.64 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: -10.0 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:15,929 INFO L168 Benchmark]: TraceAbstraction took 224467.67 ms. Allocated memory was 86.0 MB in the beginning and 151.0 MB in the end (delta: 65.0 MB). Free memory was 62.9 MB in the beginning and 113.4 MB in the end (delta: -50.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:15,929 INFO L168 Benchmark]: Witness Printer took 94.19 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 108.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:07:15,932 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 56.6 MB. Free memory was 38.7 MB in the beginning and 38.7 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 991.14 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.6 MB in the beginning and 41.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.25 ms. Allocated memory is still 69.2 MB. Free memory was 41.9 MB in the beginning and 37.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1795.64 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: -10.0 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 224467.67 ms. Allocated memory was 86.0 MB in the beginning and 151.0 MB in the end (delta: 65.0 MB). Free memory was 62.9 MB in the beginning and 113.4 MB in the end (delta: -50.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Witness Printer took 94.19 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 108.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 682]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 744]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 587]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 658]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 660]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 699]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 593]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 594]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 593]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 765]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 666]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 668]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 77 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 344 locations, 77 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 224.3s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 174.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 409 SDtfs, 251 SDslu, 1127 SDs, 0 SdLazy, 1066 SolverSat, 103 SolverUnsat, 80 SolverUnknown, 0 SolverNotchecked, 138.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 517 SyntacticMatches, 11 SemanticMatches, 128 ConstructedPredicates, 21 IntricatePredicates, 1 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 75.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred 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, 14 MinimizatonAttempts, 122 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 43.6s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 618 ConstructedInterpolants, 87 QuantifiedInterpolants, 125860 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1187 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 28 InterpolantComputations, 14 PerfectInterpolantSequences, 64/96 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...