./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7c0f55efd94c93e17f9b5d2997faae48611cbba6 ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7c0f55efd94c93e17f9b5d2997faae48611cbba6 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:02:16,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:16,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:16,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:16,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:16,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:16,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:16,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:16,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:16,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:16,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:16,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:16,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:16,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:16,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:16,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:16,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:16,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:16,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:16,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:16,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:16,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:16,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:16,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:16,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:16,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:16,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:16,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:16,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:16,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:16,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:16,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:16,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:16,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:16,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:16,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:16,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:16,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:16,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:16,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:16,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:16,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:02:16,340 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:16,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:16,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:16,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:16,343 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:16,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:16,344 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:16,344 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:16,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:16,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:16,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:16,346 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:16,346 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:16,347 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:16,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:16,347 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:16,348 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:16,348 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:16,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:16,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:16,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:16,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:16,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:16,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:16,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:16,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:02:16,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:02:16,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:16,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 7c0f55efd94c93e17f9b5d2997faae48611cbba6 [2020-10-20 06:02:16,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:16,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:16,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:16,593 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:16,593 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:16,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2020-10-20 06:02:16,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5cb28bf/443d423dc3214ff9aed99dbd6004e778/FLAGc87349d3f [2020-10-20 06:02:17,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:17,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2020-10-20 06:02:17,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5cb28bf/443d423dc3214ff9aed99dbd6004e778/FLAGc87349d3f [2020-10-20 06:02:17,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5cb28bf/443d423dc3214ff9aed99dbd6004e778 [2020-10-20 06:02:17,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:17,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:17,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:17,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:17,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:17,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:17" (1/1) ... [2020-10-20 06:02:17,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f695b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:17, skipping insertion in model container [2020-10-20 06:02:17,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:17" (1/1) ... [2020-10-20 06:02:17,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:17,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:18,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:18,049 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) [2020-10-20 06:02:18,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e879bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:18, skipping insertion in model container [2020-10-20 06:02:18,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:18,050 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 06:02:18,053 INFO L168 Benchmark]: Toolchain (without parser) took 569.72 ms. Allocated memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: 10.0 MB). Free memory was 8.2 MB in the beginning and 23.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:18,054 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 35.1 MB. Free memory is still 15.3 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:02:18,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.61 ms. Allocated memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: 10.0 MB). Free memory was 7.3 MB in the beginning and 23.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:18,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 35.1 MB. Free memory is still 15.3 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 561.61 ms. Allocated memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: 10.0 MB). Free memory was 7.3 MB in the beginning and 23.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 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 0.1.25-9a8b2e8 [2020-10-20 06:02:19,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:19,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:19,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:19,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:19,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:19,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:19,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:19,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:19,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:20,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:20,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:20,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:20,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:20,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:20,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:20,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:20,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:20,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:20,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:20,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:20,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:20,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:20,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:20,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:20,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:20,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:20,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:20,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:20,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:20,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:20,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:20,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:20,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:20,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:20,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:20,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:20,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:20,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:20,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:20,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:20,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 06:02:20,082 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:20,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:20,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:20,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:20,084 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:20,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:20,085 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:20,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:20,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:20,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:20,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:20,087 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:20,087 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:20,087 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:20,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:20,088 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:20,088 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 06:02:20,089 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 06:02:20,089 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:20,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:20,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:20,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:20,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:20,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:20,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:20,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:20,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:20,091 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 06:02:20,091 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 06:02:20,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:20,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 06:02:20,092 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 7c0f55efd94c93e17f9b5d2997faae48611cbba6 [2020-10-20 06:02:20,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:20,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:20,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:20,302 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:20,302 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:20,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2020-10-20 06:02:20,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec64fbda/f0a7c1f7f114427cb68b3d5a0385155f/FLAGc600487c1 [2020-10-20 06:02:20,922 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:20,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2020-10-20 06:02:20,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec64fbda/f0a7c1f7f114427cb68b3d5a0385155f/FLAGc600487c1 [2020-10-20 06:02:21,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec64fbda/f0a7c1f7f114427cb68b3d5a0385155f [2020-10-20 06:02:21,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:21,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:21,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:21,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:21,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:21,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:21" (1/1) ... [2020-10-20 06:02:21,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540fba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:21, skipping insertion in model container [2020-10-20 06:02:21,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:21" (1/1) ... [2020-10-20 06:02:21,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:21,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:21,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:21,810 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 06:02:21,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:21,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:21,877 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:02:21,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:22,031 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:02:22,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22 WrapperNode [2020-10-20 06:02:22,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:22,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:02:22,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:02:22,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:02:22,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... [2020-10-20 06:02:22,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... [2020-10-20 06:02:22,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... [2020-10-20 06:02:22,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... [2020-10-20 06:02:22,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... [2020-10-20 06:02:22,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... [2020-10-20 06:02:22,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... [2020-10-20 06:02:22,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:02:22,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:02:22,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:02:22,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:02:22,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:22,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:02:22,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:02:22,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:22,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:22,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 06:02:22,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 06:02:22,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 06:02:22,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 06:02:22,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 06:02:22,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-20 06:02:22,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-20 06:02:22,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-20 06:02:22,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-20 06:02:22,211 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:22,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-20 06:02:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-20 06:02:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-20 06:02:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-20 06:02:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-20 06:02:22,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-20 06:02:22,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-20 06:02:22,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-20 06:02:22,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-20 06:02:22,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-20 06:02:22,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-20 06:02:22,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-20 06:02:22,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-20 06:02:22,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-20 06:02:22,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-20 06:02:22,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-20 06:02:22,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-20 06:02:22,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-20 06:02:22,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-20 06:02:22,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-20 06:02:22,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-20 06:02:22,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-20 06:02:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-20 06:02:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-20 06:02:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-20 06:02:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-20 06:02:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-20 06:02:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-20 06:02:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-20 06:02:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:02:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-20 06:02:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-20 06:02:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-20 06:02:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:02:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:02:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:02:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:02:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:02:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:02:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:02:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:02:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:02:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:02:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:02:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:02:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:02:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:02:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:02:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:02:22,222 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 06:02:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 06:02:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 06:02:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 06:02:22,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 06:02:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:02:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:02:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:02:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:02:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:02:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:02:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:02:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:02:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:02:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:02:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:02:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:02:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:02:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:02:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:02:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:02:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:02:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:02:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:02:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:02:22,228 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:02:22,228 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:02:22,228 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:02:22,228 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:02:22,228 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:02:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:02:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:02:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:02:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:02:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:02:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:02:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:02:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:02:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:02:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:02:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:02:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:02:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:02:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:02:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:02:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:02:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:02:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:02:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:02:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:02:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:02:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:02:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:02:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:02:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:02:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:02:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:02:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:02:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:02:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:02:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:02:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:02:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:02:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:02:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:02:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:02:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:02:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:02:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:02:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:02:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:02:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:02:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:02:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:02:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:02:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:02:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:02:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:02:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:02:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:02:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:02:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:02:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:02:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:02:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:02:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:02:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:02:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:02:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:02:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:02:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:02:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-20 06:02:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:02:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-20 06:02:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-20 06:02:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-20 06:02:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-20 06:02:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-20 06:02:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:02:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-20 06:02:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-20 06:02:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:02:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-20 06:02:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-20 06:02:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-20 06:02:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:02:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-20 06:02:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-20 06:02:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-20 06:02:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-20 06:02:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-20 06:02:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-20 06:02:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:02:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-20 06:02:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-20 06:02:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-20 06:02:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-20 06:02:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-20 06:02:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 06:02:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 06:02:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-20 06:02:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-20 06:02:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-20 06:02:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-20 06:02:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-20 06:02:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-20 06:02:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-20 06:02:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-20 06:02:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-20 06:02:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-20 06:02:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-20 06:02:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-20 06:02:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-20 06:02:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-20 06:02:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-20 06:02:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-20 06:02:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-20 06:02:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:02:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:02:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:02:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 06:02:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:02:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-20 06:02:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-20 06:02:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-20 06:02:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-20 06:02:22,921 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:23,314 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:23,595 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:02:23,596 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:02:23,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:23 BoogieIcfgContainer [2020-10-20 06:02:23,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:02:23,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:02:23,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:02:23,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:02:23,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:02:21" (1/3) ... [2020-10-20 06:02:23,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a525611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:23, skipping insertion in model container [2020-10-20 06:02:23,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:22" (2/3) ... [2020-10-20 06:02:23,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a525611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:23, skipping insertion in model container [2020-10-20 06:02:23,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:23" (3/3) ... [2020-10-20 06:02:23,608 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-2.i [2020-10-20 06:02:23,620 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:02:23,628 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2020-10-20 06:02:23,643 INFO L253 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2020-10-20 06:02:23,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:02:23,664 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:02:23,664 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:02:23,664 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:02:23,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:02:23,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:02:23,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:02:23,665 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:02:23,685 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-10-20 06:02:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:23,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:23,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:23,697 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:23,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:23,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1853453812, now seen corresponding path program 1 times [2020-10-20 06:02:23,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:23,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363499172] [2020-10-20 06:02:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:23,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:23,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:24,000 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 [2020-10-20 06:02:24,000 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:24,009 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:24,010 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:24,010 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:24,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:24,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363499172] [2020-10-20 06:02:24,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:24,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 06:02:24,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812383614] [2020-10-20 06:02:24,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:24,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:24,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:24,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:24,132 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 5 states. [2020-10-20 06:02:24,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:24,417 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2020-10-20 06:02:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:24,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:24,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:24,437 INFO L225 Difference]: With dead ends: 132 [2020-10-20 06:02:24,437 INFO L226 Difference]: Without dead ends: 129 [2020-10-20 06:02:24,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:24,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-20 06:02:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2020-10-20 06:02:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-20 06:02:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2020-10-20 06:02:24,527 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 17 [2020-10-20 06:02:24,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:24,529 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2020-10-20 06:02:24,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:24,529 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2020-10-20 06:02:24,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:24,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:24,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:24,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 06:02:24,744 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:24,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:24,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1853453811, now seen corresponding path program 1 times [2020-10-20 06:02:24,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:24,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827890615] [2020-10-20 06:02:24,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:24,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:24,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:24,961 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 [2020-10-20 06:02:24,962 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:24,968 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:24,968 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:24,969 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:25,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:25,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827890615] [2020-10-20 06:02:25,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:25,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 06:02:25,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904395825] [2020-10-20 06:02:25,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:25,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:25,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:25,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:25,335 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand 10 states. [2020-10-20 06:02:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:25,859 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2020-10-20 06:02:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:25,861 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-20 06:02:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:25,863 INFO L225 Difference]: With dead ends: 128 [2020-10-20 06:02:25,863 INFO L226 Difference]: Without dead ends: 128 [2020-10-20 06:02:25,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:02:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-20 06:02:25,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2020-10-20 06:02:25,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-20 06:02:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2020-10-20 06:02:25,874 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 17 [2020-10-20 06:02:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:25,874 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2020-10-20 06:02:25,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2020-10-20 06:02:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:25,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:25,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:26,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 06:02:26,088 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:26,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:26,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1824824661, now seen corresponding path program 1 times [2020-10-20 06:02:26,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:26,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270151887] [2020-10-20 06:02:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:26,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:26,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270151887] [2020-10-20 06:02:26,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:26,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:26,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988445710] [2020-10-20 06:02:26,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:26,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:26,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:26,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:26,293 INFO L87 Difference]: Start difference. First operand 123 states and 132 transitions. Second operand 5 states. [2020-10-20 06:02:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:26,335 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2020-10-20 06:02:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:26,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:26,338 INFO L225 Difference]: With dead ends: 122 [2020-10-20 06:02:26,338 INFO L226 Difference]: Without dead ends: 122 [2020-10-20 06:02:26,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-20 06:02:26,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2020-10-20 06:02:26,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 06:02:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 127 transitions. [2020-10-20 06:02:26,349 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 127 transitions. Word has length 17 [2020-10-20 06:02:26,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:26,349 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 127 transitions. [2020-10-20 06:02:26,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2020-10-20 06:02:26,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 06:02:26,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:26,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:26,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 06:02:26,573 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:26,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:26,573 INFO L82 PathProgramCache]: Analyzing trace with hash -779180921, now seen corresponding path program 1 times [2020-10-20 06:02:26,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:26,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570624999] [2020-10-20 06:02:26,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:26,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:26,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570624999] [2020-10-20 06:02:26,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:26,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:26,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488333542] [2020-10-20 06:02:26,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:26,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:26,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:26,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:26,849 INFO L87 Difference]: Start difference. First operand 120 states and 127 transitions. Second operand 5 states. [2020-10-20 06:02:26,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:26,884 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2020-10-20 06:02:26,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:26,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-20 06:02:26,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:26,892 INFO L225 Difference]: With dead ends: 122 [2020-10-20 06:02:26,892 INFO L226 Difference]: Without dead ends: 122 [2020-10-20 06:02:26,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:26,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-20 06:02:26,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2020-10-20 06:02:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 06:02:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2020-10-20 06:02:26,910 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 29 [2020-10-20 06:02:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:26,911 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2020-10-20 06:02:26,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2020-10-20 06:02:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 06:02:26,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:26,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:27,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 06:02:27,128 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:27,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1776253274, now seen corresponding path program 1 times [2020-10-20 06:02:27,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:27,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559382481] [2020-10-20 06:02:27,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:27,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:27,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559382481] [2020-10-20 06:02:27,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:27,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-20 06:02:27,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952827411] [2020-10-20 06:02:27,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:02:27,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:27,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:02:27,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:27,393 INFO L87 Difference]: Start difference. First operand 120 states and 126 transitions. Second operand 7 states. [2020-10-20 06:02:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:27,447 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2020-10-20 06:02:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:02:27,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-10-20 06:02:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:27,450 INFO L225 Difference]: With dead ends: 132 [2020-10-20 06:02:27,450 INFO L226 Difference]: Without dead ends: 132 [2020-10-20 06:02:27,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:02:27,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-20 06:02:27,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2020-10-20 06:02:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-20 06:02:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 134 transitions. [2020-10-20 06:02:27,460 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 134 transitions. Word has length 29 [2020-10-20 06:02:27,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:27,461 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 134 transitions. [2020-10-20 06:02:27,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:02:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 134 transitions. [2020-10-20 06:02:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 06:02:27,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:27,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:27,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 06:02:27,687 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:27,687 INFO L82 PathProgramCache]: Analyzing trace with hash 438885256, now seen corresponding path program 1 times [2020-10-20 06:02:27,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:27,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499627432] [2020-10-20 06:02:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:27,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:02:27,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499627432] [2020-10-20 06:02:27,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:27,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 06:02:27,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879277069] [2020-10-20 06:02:27,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:02:27,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:27,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:02:27,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:02:27,977 INFO L87 Difference]: Start difference. First operand 128 states and 134 transitions. Second operand 3 states. [2020-10-20 06:02:28,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:28,172 INFO L93 Difference]: Finished difference Result 139 states and 144 transitions. [2020-10-20 06:02:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:02:28,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-10-20 06:02:28,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:28,174 INFO L225 Difference]: With dead ends: 139 [2020-10-20 06:02:28,175 INFO L226 Difference]: Without dead ends: 124 [2020-10-20 06:02:28,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:02:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-20 06:02:28,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2020-10-20 06:02:28,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-20 06:02:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2020-10-20 06:02:28,183 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 27 [2020-10-20 06:02:28,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:28,183 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2020-10-20 06:02:28,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:02:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2020-10-20 06:02:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 06:02:28,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:28,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:28,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,405 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:28,406 INFO L82 PathProgramCache]: Analyzing trace with hash -972322523, now seen corresponding path program 1 times [2020-10-20 06:02:28,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:28,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021665316] [2020-10-20 06:02:28,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:28,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:02:28,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:28,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021665316] [2020-10-20 06:02:28,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:28,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 06:02:28,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170711532] [2020-10-20 06:02:28,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:02:28,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:28,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:02:28,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:02:28,635 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand 6 states. [2020-10-20 06:02:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:28,674 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2020-10-20 06:02:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:28,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-20 06:02:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:28,677 INFO L225 Difference]: With dead ends: 122 [2020-10-20 06:02:28,677 INFO L226 Difference]: Without dead ends: 118 [2020-10-20 06:02:28,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:28,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-20 06:02:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-10-20 06:02:28,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-20 06:02:28,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2020-10-20 06:02:28,684 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 32 [2020-10-20 06:02:28,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:28,684 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2020-10-20 06:02:28,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:02:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2020-10-20 06:02:28,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:02:28,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:28,686 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:28,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,899 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:28,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:28,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1413246651, now seen corresponding path program 1 times [2020-10-20 06:02:28,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:28,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204820228] [2020-10-20 06:02:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:29,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:29,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:29,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204820228] [2020-10-20 06:02:29,171 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:29,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [887626429] [2020-10-20 06:02:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:29,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:29,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:29,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:29,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:02:29,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-20 06:02:29,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603877499] [2020-10-20 06:02:29,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:29,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:29,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:29,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:29,626 INFO L87 Difference]: Start difference. First operand 118 states and 123 transitions. Second operand 10 states. [2020-10-20 06:02:29,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:29,838 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2020-10-20 06:02:29,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:02:29,840 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-20 06:02:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:29,842 INFO L225 Difference]: With dead ends: 126 [2020-10-20 06:02:29,843 INFO L226 Difference]: Without dead ends: 122 [2020-10-20 06:02:29,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:02:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-20 06:02:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-20 06:02:29,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-20 06:02:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2020-10-20 06:02:29,850 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 34 [2020-10-20 06:02:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:29,850 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2020-10-20 06:02:29,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2020-10-20 06:02:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:02:29,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:29,852 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:30,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:30,263 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:30,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:30,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1076819579, now seen corresponding path program 2 times [2020-10-20 06:02:30,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:30,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679013602] [2020-10-20 06:02:30,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:30,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:02:30,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:02:30,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:02:30,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:30,415 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 [2020-10-20 06:02:30,415 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:30,416 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:30,417 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:30,417 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:30,564 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:30,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:30,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679013602] [2020-10-20 06:02:30,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:30,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:02:30,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259763795] [2020-10-20 06:02:30,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:02:30,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:30,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:02:30,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:02:30,639 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand 12 states. [2020-10-20 06:02:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:31,360 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2020-10-20 06:02:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:02:31,361 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-20 06:02:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:31,362 INFO L225 Difference]: With dead ends: 133 [2020-10-20 06:02:31,363 INFO L226 Difference]: Without dead ends: 133 [2020-10-20 06:02:31,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:02:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-20 06:02:31,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2020-10-20 06:02:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-20 06:02:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2020-10-20 06:02:31,368 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 38 [2020-10-20 06:02:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:31,369 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2020-10-20 06:02:31,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:02:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2020-10-20 06:02:31,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:02:31,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:31,371 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:31,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-20 06:02:31,572 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1076819578, now seen corresponding path program 1 times [2020-10-20 06:02:31,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:31,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820994328] [2020-10-20 06:02:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:31,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:31,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:31,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:32,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820994328] [2020-10-20 06:02:32,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:02:32,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-10-20 06:02:32,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740286123] [2020-10-20 06:02:32,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-20 06:02:32,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:32,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-20 06:02:32,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-10-20 06:02:32,151 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand 18 states. [2020-10-20 06:02:33,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:33,054 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2020-10-20 06:02:33,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 06:02:33,056 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2020-10-20 06:02:33,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:33,057 INFO L225 Difference]: With dead ends: 133 [2020-10-20 06:02:33,057 INFO L226 Difference]: Without dead ends: 129 [2020-10-20 06:02:33,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2020-10-20 06:02:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-20 06:02:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-10-20 06:02:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-20 06:02:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2020-10-20 06:02:33,063 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 38 [2020-10-20 06:02:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:33,063 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2020-10-20 06:02:33,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-20 06:02:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2020-10-20 06:02:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-20 06:02:33,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:33,065 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:33,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-20 06:02:33,268 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:33,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:33,269 INFO L82 PathProgramCache]: Analyzing trace with hash -2145805818, now seen corresponding path program 2 times [2020-10-20 06:02:33,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:33,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252481184] [2020-10-20 06:02:33,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:33,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:02:33,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:02:33,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-20 06:02:33,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:33,428 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 [2020-10-20 06:02:33,428 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:33,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:33,434 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:33,434 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-20 06:02:33,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:34,527 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-20 06:02:34,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252481184] [2020-10-20 06:02:34,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:34,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:02:34,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70329148] [2020-10-20 06:02:34,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:02:34,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:34,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:02:34,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2020-10-20 06:02:34,529 INFO L87 Difference]: Start difference. First operand 129 states and 134 transitions. Second operand 23 states. [2020-10-20 06:02:36,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:36,791 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2020-10-20 06:02:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:02:36,792 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2020-10-20 06:02:36,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:36,794 INFO L225 Difference]: With dead ends: 128 [2020-10-20 06:02:36,794 INFO L226 Difference]: Without dead ends: 128 [2020-10-20 06:02:36,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2020-10-20 06:02:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-20 06:02:36,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-10-20 06:02:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-20 06:02:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2020-10-20 06:02:36,799 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 46 [2020-10-20 06:02:36,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:36,800 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2020-10-20 06:02:36,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:02:36,800 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2020-10-20 06:02:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 06:02:36,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:36,801 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:37,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-20 06:02:37,005 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:37,006 INFO L82 PathProgramCache]: Analyzing trace with hash 2091386010, now seen corresponding path program 1 times [2020-10-20 06:02:37,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:37,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632361350] [2020-10-20 06:02:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:02:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:37,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 06:02:37,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:37,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632361350] [2020-10-20 06:02:37,213 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:37,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1997008819] [2020-10-20 06:02:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:37,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 06:02:37,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:37,607 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:37,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762083777] [2020-10-20 06:02:37,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:37,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:37,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:37,794 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 [2020-10-20 06:02:37,795 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:37,796 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:37,797 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:37,797 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-20 06:02:38,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-20 06:02:38,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:38,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:02:38,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219571279] [2020-10-20 06:02:38,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:02:38,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:38,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:02:38,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:02:38,142 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand 12 states. [2020-10-20 06:02:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:38,976 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2020-10-20 06:02:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:02:38,976 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-20 06:02:38,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:38,977 INFO L225 Difference]: With dead ends: 138 [2020-10-20 06:02:38,978 INFO L226 Difference]: Without dead ends: 138 [2020-10-20 06:02:38,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-10-20 06:02:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-20 06:02:38,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 126. [2020-10-20 06:02:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-20 06:02:38,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 131 transitions. [2020-10-20 06:02:38,985 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 131 transitions. Word has length 51 [2020-10-20 06:02:38,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:38,987 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 131 transitions. [2020-10-20 06:02:38,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:02:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 131 transitions. [2020-10-20 06:02:38,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 06:02:38,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:38,998 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:39,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:39,611 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:39,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2091386011, now seen corresponding path program 1 times [2020-10-20 06:02:39,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:39,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598931744] [2020-10-20 06:02:39,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:39,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 06:02:39,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:39,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598931744] [2020-10-20 06:02:39,813 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:39,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1893645737] [2020-10-20 06:02:39,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:40,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 06:02:40,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:40,243 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:40,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859630099] [2020-10-20 06:02:40,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:40,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 06:02:40,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:40,432 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 [2020-10-20 06:02:40,432 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:40,436 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:40,437 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:40,437 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:40,846 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-20 06:02:40,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-20 06:02:41,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:41,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:02:41,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703909832] [2020-10-20 06:02:41,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:02:41,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:41,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:02:41,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-10-20 06:02:41,882 INFO L87 Difference]: Start difference. First operand 126 states and 131 transitions. Second operand 23 states. [2020-10-20 06:02:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:44,224 INFO L93 Difference]: Finished difference Result 124 states and 129 transitions. [2020-10-20 06:02:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:02:44,225 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 51 [2020-10-20 06:02:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:44,226 INFO L225 Difference]: With dead ends: 124 [2020-10-20 06:02:44,227 INFO L226 Difference]: Without dead ends: 124 [2020-10-20 06:02:44,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 115 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-10-20 06:02:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-20 06:02:44,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-20 06:02:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-20 06:02:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 129 transitions. [2020-10-20 06:02:44,232 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 129 transitions. Word has length 51 [2020-10-20 06:02:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:44,233 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 129 transitions. [2020-10-20 06:02:44,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:02:44,233 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 129 transitions. [2020-10-20 06:02:44,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-20 06:02:44,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:44,234 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:44,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:44,838 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:44,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:44,839 INFO L82 PathProgramCache]: Analyzing trace with hash -936404392, now seen corresponding path program 1 times [2020-10-20 06:02:44,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:44,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858000860] [2020-10-20 06:02:44,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:45,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 06:02:45,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:45,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858000860] [2020-10-20 06:02:45,036 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:45,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [592122460] [2020-10-20 06:02:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:45,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:45,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:45,377 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:45,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104788317] [2020-10-20 06:02:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:45,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:45,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:45,555 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:45,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:45,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 06:02:45,556 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 06:02:45,556 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:02:46,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:46,169 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-20 06:02:46,178 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 06:02:46,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:02:46 BoogieIcfgContainer [2020-10-20 06:02:46,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:02:46,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:02:46,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:02:46,181 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:02:46,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:23" (3/4) ... [2020-10-20 06:02:46,185 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:02:46,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:02:46,187 INFO L168 Benchmark]: Toolchain (without parser) took 24932.25 ms. Allocated memory was 36.2 MB in the beginning and 133.7 MB in the end (delta: 97.5 MB). Free memory was 17.2 MB in the beginning and 37.4 MB in the end (delta: -20.2 MB). Peak memory consumption was 77.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,188 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 11.8 MB in the beginning and 11.8 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.88 ms. Allocated memory was 36.2 MB in the beginning and 46.7 MB in the end (delta: 10.5 MB). Free memory was 16.2 MB in the beginning and 23.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,189 INFO L168 Benchmark]: Boogie Preprocessor took 99.11 ms. Allocated memory is still 46.7 MB. Free memory was 23.8 MB in the beginning and 18.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,189 INFO L168 Benchmark]: RCFGBuilder took 1466.26 ms. Allocated memory was 46.7 MB in the beginning and 58.7 MB in the end (delta: 12.1 MB). Free memory was 18.5 MB in the beginning and 26.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,190 INFO L168 Benchmark]: TraceAbstraction took 22578.47 ms. Allocated memory was 58.7 MB in the beginning and 133.7 MB in the end (delta: 75.0 MB). Free memory was 25.5 MB in the beginning and 37.4 MB in the end (delta: -11.9 MB). Peak memory consumption was 63.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:46,190 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 133.7 MB. Free memory is still 37.4 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:02:46,193 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 34.1 MB. Free memory was 11.8 MB in the beginning and 11.8 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 770.88 ms. Allocated memory was 36.2 MB in the beginning and 46.7 MB in the end (delta: 10.5 MB). Free memory was 16.2 MB in the beginning and 23.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 99.11 ms. Allocated memory is still 46.7 MB. Free memory was 23.8 MB in the beginning and 18.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1466.26 ms. Allocated memory was 46.7 MB in the beginning and 58.7 MB in the end (delta: 12.1 MB). Free memory was 18.5 MB in the beginning and 26.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 22578.47 ms. Allocated memory was 58.7 MB in the beginning and 133.7 MB in the end (delta: 75.0 MB). Free memory was 25.5 MB in the beginning and 37.4 MB in the end (delta: -11.9 MB). Peak memory consumption was 63.1 MB. Max. memory is 14.3 GB. * Witness Printer took 4.53 ms. Allocated memory is still 133.7 MB. Free memory is still 37.4 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L763] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND TRUE !kobj [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] v->counter - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 331 locations, 71 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 22.5s, OverallIterations: 14, TraceHistogramMax: 14, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1424 SDtfs, 544 SDslu, 7386 SDs, 0 SdLazy, 3111 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 972 GetRequests, 805 SyntacticMatches, 18 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred 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, 13 MinimizatonAttempts, 51 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 426 NumberOfCodeBlocks, 406 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 826 ConstructedInterpolants, 76 QuantifiedInterpolants, 116620 SizeOfPredicates, 46 NumberOfNonLiveVariables, 1901 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 672/720 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...