./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:19:32,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:19:32,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:19:32,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:19:32,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:19:32,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:19:32,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:19:32,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:19:32,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:19:32,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:19:32,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:19:32,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:19:32,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:19:32,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:19:32,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:19:32,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:19:32,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:19:32,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:19:32,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:19:32,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:19:32,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:19:32,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:19:32,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:19:32,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:19:32,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:19:32,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:19:32,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:19:32,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:19:32,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:19:32,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:19:32,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:19:32,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:19:32,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:19:32,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:19:32,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:19:32,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:19:32,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:19:32,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:19:32,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:19:32,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:19:32,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:19:32,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 17:19:32,204 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:19:32,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:19:32,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:19:32,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:19:32,206 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:19:32,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:19:32,206 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:19:32,206 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:19:32,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:19:32,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:19:32,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:19:32,207 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:19:32,207 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:19:32,207 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:19:32,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:19:32,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:19:32,207 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:19:32,208 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:19:32,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:19:32,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:19:32,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:19:32,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:19:32,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:19:32,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:19:32,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:19:32,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:19:32,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:19:32,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:19:32,209 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2019-12-07 17:19:32,317 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:19:32,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:19:32,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:19:32,328 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:19:32,328 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:19:32,329 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-12-07 17:19:32,366 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/9386209ac/feab89c48aab4ac88ebfb7fd2cde68a5/FLAG32897c8c7 [2019-12-07 17:19:32,742 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:19:32,742 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-12-07 17:19:32,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/9386209ac/feab89c48aab4ac88ebfb7fd2cde68a5/FLAG32897c8c7 [2019-12-07 17:19:32,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/9386209ac/feab89c48aab4ac88ebfb7fd2cde68a5 [2019-12-07 17:19:32,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:19:32,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:19:32,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:19:32,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:19:32,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:19:32,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:19:32" (1/1) ... [2019-12-07 17:19:32,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd7fe22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:32, skipping insertion in model container [2019-12-07 17:19:32,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:19:32" (1/1) ... [2019-12-07 17:19:32,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:19:32,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:19:33,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:19:33,072 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) [2019-12-07 17:19:33,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51e02de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:33, skipping insertion in model container [2019-12-07 17:19:33,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:19:33,073 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 17:19:33,074 INFO L168 Benchmark]: Toolchain (without parser) took 309.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:19:33,075 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:19:33,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:19:33,076 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 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-f470102 [2019-12-07 17:19:34,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:19:34,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:19:34,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:19:34,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:19:34,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:19:34,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:19:34,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:19:34,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:19:34,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:19:34,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:19:34,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:19:34,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:19:34,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:19:34,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:19:34,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:19:34,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:19:34,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:19:34,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:19:34,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:19:34,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:19:34,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:19:34,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:19:34,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:19:34,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:19:34,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:19:34,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:19:34,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:19:34,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:19:34,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:19:34,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:19:34,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:19:34,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:19:34,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:19:34,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:19:34,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:19:34,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:19:34,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:19:34,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:19:34,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:19:34,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:19:34,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 17:19:34,250 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:19:34,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:19:34,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:19:34,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:19:34,251 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:19:34,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:19:34,251 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:19:34,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:19:34,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:19:34,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:19:34,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:19:34,252 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:19:34,252 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:19:34,252 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:19:34,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:19:34,252 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:19:34,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:19:34,253 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:19:34,253 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:19:34,253 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:19:34,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:19:34,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:19:34,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:19:34,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:19:34,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:19:34,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:19:34,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:19:34,254 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 17:19:34,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:19:34,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:19:34,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:19:34,254 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2019-12-07 17:19:34,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:19:34,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:19:34,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:19:34,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:19:34,428 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:19:34,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-12-07 17:19:34,466 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/42356b31d/aa7675122483461aa8cd87de07434432/FLAG3680f5b13 [2019-12-07 17:19:34,851 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:19:34,851 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-12-07 17:19:34,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/42356b31d/aa7675122483461aa8cd87de07434432/FLAG3680f5b13 [2019-12-07 17:19:34,873 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/data/42356b31d/aa7675122483461aa8cd87de07434432 [2019-12-07 17:19:34,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:19:34,876 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:19:34,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:19:34,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:19:34,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:19:34,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:19:34" (1/1) ... [2019-12-07 17:19:34,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5dd555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:34, skipping insertion in model container [2019-12-07 17:19:34,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:19:34" (1/1) ... [2019-12-07 17:19:34,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:19:34,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:19:35,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:19:35,206 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 17:19:35,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:19:35,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:19:35,257 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:19:35,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:19:35,345 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:19:35,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35 WrapperNode [2019-12-07 17:19:35,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:19:35,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:19:35,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:19:35,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:19:35,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... [2019-12-07 17:19:35,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... [2019-12-07 17:19:35,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... [2019-12-07 17:19:35,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... [2019-12-07 17:19:35,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... [2019-12-07 17:19:35,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... [2019-12-07 17:19:35,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... [2019-12-07 17:19:35,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:19:35,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:19:35,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:19:35,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:19:35,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:19:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 17:19:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:19:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 17:19:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 17:19:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 17:19:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-12-07 17:19:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-12-07 17:19:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2019-12-07 17:19:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-12-07 17:19:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 17:19:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-12-07 17:19:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-12-07 17:19:35,452 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 17:19:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 17:19:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 17:19:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 17:19:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 17:19:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 17:19:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 17:19:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 17:19:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-12-07 17:19:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 17:19:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-12-07 17:19:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-12-07 17:19:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-12-07 17:19:35,793 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 17:19:36,054 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-12-07 17:19:36,277 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:19:36,277 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-12-07 17:19:36,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:19:36 BoogieIcfgContainer [2019-12-07 17:19:36,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:19:36,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:19:36,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:19:36,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:19:36,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:19:34" (1/3) ... [2019-12-07 17:19:36,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654e85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:19:36, skipping insertion in model container [2019-12-07 17:19:36,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:35" (2/3) ... [2019-12-07 17:19:36,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654e85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:19:36, skipping insertion in model container [2019-12-07 17:19:36,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:19:36" (3/3) ... [2019-12-07 17:19:36,284 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_4.i [2019-12-07 17:19:36,291 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:19:36,296 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-12-07 17:19:36,304 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-12-07 17:19:36,316 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:19:36,317 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 17:19:36,317 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:19:36,317 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:19:36,317 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:19:36,317 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:19:36,317 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:19:36,317 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:19:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2019-12-07 17:19:36,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:19:36,338 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:36,338 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:36,339 INFO L410 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]=== [2019-12-07 17:19:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2019-12-07 17:19:36,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:36,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188042784] [2019-12-07 17:19:36,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:36,471 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:19:36,475 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:36,515 INFO L377 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 [2019-12-07 17:19:36,515 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:36,521 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:36,521 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:36,522 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:19:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:36,544 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:36,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188042784] [2019-12-07 17:19:36,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:36,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 17:19:36,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143758916] [2019-12-07 17:19:36,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:19:36,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:36,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:19:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:19:36,596 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 5 states. [2019-12-07 17:19:36,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:36,810 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2019-12-07 17:19:36,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:19:36,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 17:19:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:36,821 INFO L225 Difference]: With dead ends: 160 [2019-12-07 17:19:36,821 INFO L226 Difference]: Without dead ends: 157 [2019-12-07 17:19:36,823 INFO L630 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 [2019-12-07 17:19:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-12-07 17:19:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2019-12-07 17:19:36,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-12-07 17:19:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 162 transitions. [2019-12-07 17:19:36,860 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 162 transitions. Word has length 17 [2019-12-07 17:19:36,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:36,861 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 162 transitions. [2019-12-07 17:19:36,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:19:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2019-12-07 17:19:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:19:36,862 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:36,862 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:37,062 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:19:37,063 INFO L410 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]=== [2019-12-07 17:19:37,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:37,063 INFO L82 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2019-12-07 17:19:37,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:37,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541361489] [2019-12-07 17:19:37,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:37,163 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 17:19:37,164 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:37,178 INFO L377 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 [2019-12-07 17:19:37,179 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:37,185 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:37,185 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:37,185 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:19:37,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:37,220 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:37,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:37,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541361489] [2019-12-07 17:19:37,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:37,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-12-07 17:19:37,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243449768] [2019-12-07 17:19:37,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 17:19:37,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:37,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 17:19:37,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:19:37,453 INFO L87 Difference]: Start difference. First operand 151 states and 162 transitions. Second operand 10 states. [2019-12-07 17:19:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:38,000 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2019-12-07 17:19:38,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:19:38,001 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-12-07 17:19:38,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:38,002 INFO L225 Difference]: With dead ends: 156 [2019-12-07 17:19:38,003 INFO L226 Difference]: Without dead ends: 156 [2019-12-07 17:19:38,003 INFO L630 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 [2019-12-07 17:19:38,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-12-07 17:19:38,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2019-12-07 17:19:38,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-12-07 17:19:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2019-12-07 17:19:38,013 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 17 [2019-12-07 17:19:38,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:38,013 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2019-12-07 17:19:38,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 17:19:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2019-12-07 17:19:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:19:38,014 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:38,014 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:38,214 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:19:38,215 INFO L410 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]=== [2019-12-07 17:19:38,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:38,216 INFO L82 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2019-12-07 17:19:38,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:38,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226266066] [2019-12-07 17:19:38,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:38,330 INFO L264 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:19:38,332 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:38,354 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:38,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226266066] [2019-12-07 17:19:38,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:38,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:19:38,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17964743] [2019-12-07 17:19:38,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:19:38,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:38,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:19:38,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:19:38,379 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 5 states. [2019-12-07 17:19:38,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:38,401 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2019-12-07 17:19:38,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:19:38,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-07 17:19:38,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:38,403 INFO L225 Difference]: With dead ends: 150 [2019-12-07 17:19:38,403 INFO L226 Difference]: Without dead ends: 150 [2019-12-07 17:19:38,404 INFO L630 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 [2019-12-07 17:19:38,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-12-07 17:19:38,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2019-12-07 17:19:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 17:19:38,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2019-12-07 17:19:38,411 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 17 [2019-12-07 17:19:38,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:38,412 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2019-12-07 17:19:38,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:19:38,412 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2019-12-07 17:19:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 17:19:38,412 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:38,412 INFO L410 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] [2019-12-07 17:19:38,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 17:19:38,614 INFO L410 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]=== [2019-12-07 17:19:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:38,614 INFO L82 PathProgramCache]: Analyzing trace with hash 300911328, now seen corresponding path program 1 times [2019-12-07 17:19:38,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:38,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304600744] [2019-12-07 17:19:38,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:38,732 INFO L264 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:19:38,733 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:38,748 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:38,799 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304600744] [2019-12-07 17:19:38,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:38,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:19:38,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311218359] [2019-12-07 17:19:38,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:19:38,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:38,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:19:38,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:19:38,800 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 5 states. [2019-12-07 17:19:38,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:38,814 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2019-12-07 17:19:38,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:19:38,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-12-07 17:19:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:38,815 INFO L225 Difference]: With dead ends: 150 [2019-12-07 17:19:38,816 INFO L226 Difference]: Without dead ends: 150 [2019-12-07 17:19:38,816 INFO L630 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 [2019-12-07 17:19:38,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-12-07 17:19:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2019-12-07 17:19:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 17:19:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 155 transitions. [2019-12-07 17:19:38,822 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 155 transitions. Word has length 29 [2019-12-07 17:19:38,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:38,822 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 155 transitions. [2019-12-07 17:19:38,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:19:38,822 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2019-12-07 17:19:38,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 17:19:38,823 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:38,823 INFO L410 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] [2019-12-07 17:19:39,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 17:19:39,025 INFO L410 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]=== [2019-12-07 17:19:39,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:39,026 INFO L82 PathProgramCache]: Analyzing trace with hash -696161025, now seen corresponding path program 1 times [2019-12-07 17:19:39,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:39,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313085732] [2019-12-07 17:19:39,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:39,137 INFO L264 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 17:19:39,139 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:39,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:39,198 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:39,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:39,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313085732] [2019-12-07 17:19:39,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:39,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-12-07 17:19:39,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316392054] [2019-12-07 17:19:39,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 17:19:39,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:39,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 17:19:39,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:19:39,227 INFO L87 Difference]: Start difference. First operand 148 states and 155 transitions. Second operand 9 states. [2019-12-07 17:19:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:39,289 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2019-12-07 17:19:39,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:19:39,290 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-12-07 17:19:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:39,291 INFO L225 Difference]: With dead ends: 168 [2019-12-07 17:19:39,291 INFO L226 Difference]: Without dead ends: 168 [2019-12-07 17:19:39,291 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-12-07 17:19:39,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-12-07 17:19:39,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2019-12-07 17:19:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-12-07 17:19:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 169 transitions. [2019-12-07 17:19:39,297 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 169 transitions. Word has length 29 [2019-12-07 17:19:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:39,297 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 169 transitions. [2019-12-07 17:19:39,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 17:19:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 169 transitions. [2019-12-07 17:19:39,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 17:19:39,298 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:39,298 INFO L410 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] [2019-12-07 17:19:39,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 17:19:39,500 INFO L410 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]=== [2019-12-07 17:19:39,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:39,500 INFO L82 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2019-12-07 17:19:39,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:39,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414885976] [2019-12-07 17:19:39,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:39,635 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 17:19:39,637 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:39,647 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:39,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414885976] [2019-12-07 17:19:39,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:39,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 17:19:39,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476332653] [2019-12-07 17:19:39,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:19:39,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:39,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:19:39,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:19:39,680 INFO L87 Difference]: Start difference. First operand 162 states and 169 transitions. Second operand 6 states. [2019-12-07 17:19:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:39,711 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2019-12-07 17:19:39,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:19:39,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 17:19:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:39,713 INFO L225 Difference]: With dead ends: 168 [2019-12-07 17:19:39,713 INFO L226 Difference]: Without dead ends: 164 [2019-12-07 17:19:39,713 INFO L630 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 [2019-12-07 17:19:39,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-12-07 17:19:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2019-12-07 17:19:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-12-07 17:19:39,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2019-12-07 17:19:39,718 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 32 [2019-12-07 17:19:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:39,719 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2019-12-07 17:19:39,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:19:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2019-12-07 17:19:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 17:19:39,720 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:39,720 INFO L410 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] [2019-12-07 17:19:39,920 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 17:19:39,921 INFO L410 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]=== [2019-12-07 17:19:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:39,922 INFO L82 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2019-12-07 17:19:39,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:39,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911727934] [2019-12-07 17:19:39,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:40,064 INFO L264 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:19:40,066 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:40,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:40,082 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:40,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911727934] [2019-12-07 17:19:40,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:19:40,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-12-07 17:19:40,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673598369] [2019-12-07 17:19:40,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 17:19:40,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:40,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 17:19:40,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:19:40,159 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand 10 states. [2019-12-07 17:19:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:40,329 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2019-12-07 17:19:40,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:19:40,330 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-12-07 17:19:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:40,331 INFO L225 Difference]: With dead ends: 172 [2019-12-07 17:19:40,331 INFO L226 Difference]: Without dead ends: 168 [2019-12-07 17:19:40,331 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-12-07 17:19:40,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-12-07 17:19:40,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-12-07 17:19:40,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-12-07 17:19:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 175 transitions. [2019-12-07 17:19:40,337 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 175 transitions. Word has length 34 [2019-12-07 17:19:40,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:40,338 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 175 transitions. [2019-12-07 17:19:40,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 17:19:40,338 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 175 transitions. [2019-12-07 17:19:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 17:19:40,339 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:40,339 INFO L410 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] [2019-12-07 17:19:40,540 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 17:19:40,540 INFO L410 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]=== [2019-12-07 17:19:40,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:40,541 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2019-12-07 17:19:40,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:40,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107118646] [2019-12-07 17:19:40,542 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:40,676 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 17:19:40,677 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:19:40,679 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 17:19:40,681 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:40,685 INFO L377 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 [2019-12-07 17:19:40,685 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:40,687 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:40,687 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:40,687 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:19:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-12-07 17:19:40,786 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-12-07 17:19:40,836 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107118646] [2019-12-07 17:19:40,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:40,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2019-12-07 17:19:40,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003532886] [2019-12-07 17:19:40,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 17:19:40,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:40,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 17:19:40,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:19:40,838 INFO L87 Difference]: Start difference. First operand 168 states and 175 transitions. Second operand 12 states. [2019-12-07 17:19:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:41,570 INFO L93 Difference]: Finished difference Result 179 states and 185 transitions. [2019-12-07 17:19:41,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 17:19:41,570 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2019-12-07 17:19:41,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:41,572 INFO L225 Difference]: With dead ends: 179 [2019-12-07 17:19:41,572 INFO L226 Difference]: Without dead ends: 179 [2019-12-07 17:19:41,572 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-12-07 17:19:41,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-12-07 17:19:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2019-12-07 17:19:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-12-07 17:19:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2019-12-07 17:19:41,581 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 38 [2019-12-07 17:19:41,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:41,582 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2019-12-07 17:19:41,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 17:19:41,582 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2019-12-07 17:19:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 17:19:41,584 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:41,584 INFO L410 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] [2019-12-07 17:19:41,785 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 17:19:41,785 INFO L410 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]=== [2019-12-07 17:19:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:41,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2019-12-07 17:19:41,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:41,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310427014] [2019-12-07 17:19:41,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:41,877 INFO L264 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 17:19:41,878 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:41,928 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:42,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310427014] [2019-12-07 17:19:42,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:19:42,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-12-07 17:19:42,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578658603] [2019-12-07 17:19:42,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 17:19:42,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:42,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 17:19:42,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-12-07 17:19:42,193 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 18 states. [2019-12-07 17:19:42,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:42,952 INFO L93 Difference]: Finished difference Result 179 states and 192 transitions. [2019-12-07 17:19:42,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 17:19:42,953 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-12-07 17:19:42,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:42,955 INFO L225 Difference]: With dead ends: 179 [2019-12-07 17:19:42,955 INFO L226 Difference]: Without dead ends: 175 [2019-12-07 17:19:42,955 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-12-07 17:19:42,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-12-07 17:19:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-12-07 17:19:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-12-07 17:19:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 182 transitions. [2019-12-07 17:19:42,960 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 182 transitions. Word has length 38 [2019-12-07 17:19:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:42,960 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 182 transitions. [2019-12-07 17:19:42,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 17:19:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 182 transitions. [2019-12-07 17:19:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 17:19:42,961 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:42,961 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:43,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 17:19:43,163 INFO L410 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]=== [2019-12-07 17:19:43,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:43,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1347385061, now seen corresponding path program 1 times [2019-12-07 17:19:43,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:43,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150323165] [2019-12-07 17:19:43,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:43,301 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 17:19:43,302 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:43,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:43,337 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:43,367 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150323165] [2019-12-07 17:19:43,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:43,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-12-07 17:19:43,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888021334] [2019-12-07 17:19:43,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:19:43,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:43,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:19:43,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:19:43,368 INFO L87 Difference]: Start difference. First operand 175 states and 182 transitions. Second operand 7 states. [2019-12-07 17:19:43,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:43,398 INFO L93 Difference]: Finished difference Result 184 states and 191 transitions. [2019-12-07 17:19:43,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:19:43,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-07 17:19:43,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:43,399 INFO L225 Difference]: With dead ends: 184 [2019-12-07 17:19:43,400 INFO L226 Difference]: Without dead ends: 184 [2019-12-07 17:19:43,400 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:19:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-12-07 17:19:43,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 180. [2019-12-07 17:19:43,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-12-07 17:19:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 187 transitions. [2019-12-07 17:19:43,404 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 187 transitions. Word has length 40 [2019-12-07 17:19:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:43,404 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 187 transitions. [2019-12-07 17:19:43,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:19:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 187 transitions. [2019-12-07 17:19:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 17:19:43,405 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:43,405 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:43,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 17:19:43,606 INFO L410 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]=== [2019-12-07 17:19:43,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:43,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1156201438, now seen corresponding path program 1 times [2019-12-07 17:19:43,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:43,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402653722] [2019-12-07 17:19:43,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:43,712 INFO L264 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:19:43,713 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:43,719 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:43,792 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402653722] [2019-12-07 17:19:43,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:43,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 17:19:43,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545200305] [2019-12-07 17:19:43,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:19:43,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:43,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:19:43,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:19:43,793 INFO L87 Difference]: Start difference. First operand 180 states and 187 transitions. Second operand 3 states. [2019-12-07 17:19:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:43,910 INFO L93 Difference]: Finished difference Result 191 states and 197 transitions. [2019-12-07 17:19:43,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:19:43,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-12-07 17:19:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:43,911 INFO L225 Difference]: With dead ends: 191 [2019-12-07 17:19:43,911 INFO L226 Difference]: Without dead ends: 165 [2019-12-07 17:19:43,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:19:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-12-07 17:19:43,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 157. [2019-12-07 17:19:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-12-07 17:19:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2019-12-07 17:19:43,915 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 38 [2019-12-07 17:19:43,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:43,916 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2019-12-07 17:19:43,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:19:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2019-12-07 17:19:43,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-12-07 17:19:43,916 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:43,916 INFO L410 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] [2019-12-07 17:19:44,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 17:19:44,117 INFO L410 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]=== [2019-12-07 17:19:44,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:44,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1528032860, now seen corresponding path program 2 times [2019-12-07 17:19:44,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:44,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913433001] [2019-12-07 17:19:44,119 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:44,232 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 17:19:44,232 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:19:44,235 INFO L264 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 17:19:44,236 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:44,245 INFO L377 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 [2019-12-07 17:19:44,245 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:44,249 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:44,250 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:44,250 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:19:44,421 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-12-07 17:19:44,421 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:45,217 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-12-07 17:19:45,217 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913433001] [2019-12-07 17:19:45,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:45,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-12-07 17:19:45,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938337862] [2019-12-07 17:19:45,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-12-07 17:19:45,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:45,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-12-07 17:19:45,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-12-07 17:19:45,219 INFO L87 Difference]: Start difference. First operand 157 states and 163 transitions. Second operand 23 states. [2019-12-07 17:19:47,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:47,779 INFO L93 Difference]: Finished difference Result 156 states and 162 transitions. [2019-12-07 17:19:47,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 17:19:47,780 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-12-07 17:19:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:47,781 INFO L225 Difference]: With dead ends: 156 [2019-12-07 17:19:47,781 INFO L226 Difference]: Without dead ends: 156 [2019-12-07 17:19:47,781 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-12-07 17:19:47,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-12-07 17:19:47,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2019-12-07 17:19:47,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 17:19:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2019-12-07 17:19:47,784 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 46 [2019-12-07 17:19:47,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:47,785 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2019-12-07 17:19:47,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-12-07 17:19:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2019-12-07 17:19:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 17:19:47,785 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:47,785 INFO L410 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] [2019-12-07 17:19:47,986 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 17:19:47,986 INFO L410 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]=== [2019-12-07 17:19:47,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:47,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1472640772, now seen corresponding path program 1 times [2019-12-07 17:19:47,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:47,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190078782] [2019-12-07 17:19:47,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:48,151 INFO L264 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 17:19:48,152 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:48,275 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:19:49,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190078782] [2019-12-07 17:19:49,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:19:49,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-12-07 17:19:49,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459463173] [2019-12-07 17:19:49,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-12-07 17:19:49,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:49,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-12-07 17:19:49,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2019-12-07 17:19:49,092 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand 34 states. [2019-12-07 17:19:49,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:49,695 INFO L93 Difference]: Finished difference Result 162 states and 168 transitions. [2019-12-07 17:19:49,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-07 17:19:49,696 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-12-07 17:19:49,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:49,697 INFO L225 Difference]: With dead ends: 162 [2019-12-07 17:19:49,697 INFO L226 Difference]: Without dead ends: 158 [2019-12-07 17:19:49,698 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2019-12-07 17:19:49,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-12-07 17:19:49,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-12-07 17:19:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-12-07 17:19:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 164 transitions. [2019-12-07 17:19:49,703 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 164 transitions. Word has length 51 [2019-12-07 17:19:49,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:49,703 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 164 transitions. [2019-12-07 17:19:49,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-12-07 17:19:49,703 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 164 transitions. [2019-12-07 17:19:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 17:19:49,704 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:49,704 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:49,904 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 17:19:49,905 INFO L410 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]=== [2019-12-07 17:19:49,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:49,905 INFO L82 PathProgramCache]: Analyzing trace with hash 680412260, now seen corresponding path program 2 times [2019-12-07 17:19:49,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:49,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997369625] [2019-12-07 17:19:49,906 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:50,000 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 17:19:50,001 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 17:19:50,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 17:19:50,006 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:50,008 INFO L377 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 [2019-12-07 17:19:50,009 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:50,010 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:50,010 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:50,010 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:19:50,108 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:50,108 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:50,150 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997369625] [2019-12-07 17:19:50,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:50,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2019-12-07 17:19:50,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713931271] [2019-12-07 17:19:50,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 17:19:50,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:50,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 17:19:50,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:19:50,151 INFO L87 Difference]: Start difference. First operand 158 states and 164 transitions. Second operand 12 states. [2019-12-07 17:19:50,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:50,816 INFO L93 Difference]: Finished difference Result 168 states and 173 transitions. [2019-12-07 17:19:50,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 17:19:50,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2019-12-07 17:19:50,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:50,817 INFO L225 Difference]: With dead ends: 168 [2019-12-07 17:19:50,817 INFO L226 Difference]: Without dead ends: 168 [2019-12-07 17:19:50,817 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-12-07 17:19:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-12-07 17:19:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2019-12-07 17:19:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 17:19:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2019-12-07 17:19:50,822 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 53 [2019-12-07 17:19:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:50,822 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2019-12-07 17:19:50,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 17:19:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2019-12-07 17:19:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 17:19:50,823 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:50,823 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:51,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-12-07 17:19:51,024 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:19:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:51,025 INFO L82 PathProgramCache]: Analyzing trace with hash 680412261, now seen corresponding path program 1 times [2019-12-07 17:19:51,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:51,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696546119] [2019-12-07 17:19:51,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:51,179 INFO L264 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 17:19:51,181 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:51,188 INFO L377 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 [2019-12-07 17:19:51,188 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:51,192 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:51,192 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:51,192 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:19:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:51,356 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:52,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696546119] [2019-12-07 17:19:52,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:52,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-12-07 17:19:52,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615227116] [2019-12-07 17:19:52,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-12-07 17:19:52,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:52,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-12-07 17:19:52,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-12-07 17:19:52,135 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand 23 states. [2019-12-07 17:19:54,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:54,930 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2019-12-07 17:19:54,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 17:19:54,931 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 53 [2019-12-07 17:19:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:54,932 INFO L225 Difference]: With dead ends: 154 [2019-12-07 17:19:54,932 INFO L226 Difference]: Without dead ends: 154 [2019-12-07 17:19:54,933 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-12-07 17:19:54,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-12-07 17:19:54,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-12-07 17:19:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 17:19:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2019-12-07 17:19:54,936 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 53 [2019-12-07 17:19:54,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:54,936 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2019-12-07 17:19:54,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-12-07 17:19:54,936 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2019-12-07 17:19:54,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 17:19:54,937 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:54,937 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:55,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-12-07 17:19:55,138 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-12-07 17:19:55,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:55,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2141011139, now seen corresponding path program 1 times [2019-12-07 17:19:55,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:55,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268425840] [2019-12-07 17:19:55,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:55,318 INFO L264 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:19:55,319 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:55,345 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:55,346 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:55,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268425840] [2019-12-07 17:19:55,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:55,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-12-07 17:19:55,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39758139] [2019-12-07 17:19:55,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 17:19:55,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:55,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 17:19:55,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:19:55,425 INFO L87 Difference]: Start difference. First operand 154 states and 160 transitions. Second operand 8 states. [2019-12-07 17:19:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:55,456 INFO L93 Difference]: Finished difference Result 156 states and 161 transitions. [2019-12-07 17:19:55,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:19:55,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-12-07 17:19:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:55,457 INFO L225 Difference]: With dead ends: 156 [2019-12-07 17:19:55,457 INFO L226 Difference]: Without dead ends: 154 [2019-12-07 17:19:55,458 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:19:55,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-12-07 17:19:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-12-07 17:19:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 17:19:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 159 transitions. [2019-12-07 17:19:55,461 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 159 transitions. Word has length 58 [2019-12-07 17:19:55,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:55,462 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 159 transitions. [2019-12-07 17:19:55,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 17:19:55,462 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 159 transitions. [2019-12-07 17:19:55,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 17:19:55,462 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:55,463 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:55,663 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2019-12-07 17:19:55,664 INFO L410 AbstractCegarLoop]: === Iteration 17 === [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]=== [2019-12-07 17:19:55,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:55,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1283825080, now seen corresponding path program 1 times [2019-12-07 17:19:55,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:55,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422223647] [2019-12-07 17:19:55,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:55,837 INFO L264 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 17:19:55,839 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:55,876 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:55,876 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:55,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:19:56,014 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:56,014 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422223647] [2019-12-07 17:19:56,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:56,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-12-07 17:19:56,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104495715] [2019-12-07 17:19:56,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 17:19:56,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:56,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 17:19:56,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-12-07 17:19:56,015 INFO L87 Difference]: Start difference. First operand 154 states and 159 transitions. Second operand 11 states. [2019-12-07 17:19:56,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:56,073 INFO L93 Difference]: Finished difference Result 158 states and 162 transitions. [2019-12-07 17:19:56,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 17:19:56,074 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-12-07 17:19:56,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:56,074 INFO L225 Difference]: With dead ends: 158 [2019-12-07 17:19:56,074 INFO L226 Difference]: Without dead ends: 154 [2019-12-07 17:19:56,075 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-12-07 17:19:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-12-07 17:19:56,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-12-07 17:19:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 17:19:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2019-12-07 17:19:56,078 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 63 [2019-12-07 17:19:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:56,078 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2019-12-07 17:19:56,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 17:19:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2019-12-07 17:19:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-07 17:19:56,079 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:56,079 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:56,279 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2019-12-07 17:19:56,279 INFO L410 AbstractCegarLoop]: === Iteration 18 === [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]=== [2019-12-07 17:19:56,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:56,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1405000591, now seen corresponding path program 1 times [2019-12-07 17:19:56,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:56,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61082323] [2019-12-07 17:19:56,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2019-12-07 17:19:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:56,443 INFO L264 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 17:19:56,445 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:56,448 INFO L377 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 [2019-12-07 17:19:56,448 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:56,449 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:56,449 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:56,449 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:19:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:56,609 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:19:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:56,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61082323] [2019-12-07 17:19:56,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:19:56,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2019-12-07 17:19:56,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881524263] [2019-12-07 17:19:56,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 17:19:56,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:19:56,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 17:19:56,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-12-07 17:19:56,721 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 17 states. [2019-12-07 17:19:57,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:19:57,715 INFO L93 Difference]: Finished difference Result 164 states and 167 transitions. [2019-12-07 17:19:57,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-07 17:19:57,715 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2019-12-07 17:19:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:19:57,716 INFO L225 Difference]: With dead ends: 164 [2019-12-07 17:19:57,716 INFO L226 Difference]: Without dead ends: 164 [2019-12-07 17:19:57,716 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 127 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2019-12-07 17:19:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-12-07 17:19:57,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2019-12-07 17:19:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-12-07 17:19:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2019-12-07 17:19:57,719 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 74 [2019-12-07 17:19:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:19:57,720 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2019-12-07 17:19:57,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 17:19:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2019-12-07 17:19:57,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-07 17:19:57,720 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:19:57,720 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:19:57,921 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2019-12-07 17:19:57,921 INFO L410 AbstractCegarLoop]: === Iteration 19 === [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]=== [2019-12-07 17:19:57,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:57,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1405000592, now seen corresponding path program 1 times [2019-12-07 17:19:57,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:19:57,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67704749] [2019-12-07 17:19:57,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/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 [2019-12-07 17:19:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:19:58,083 INFO L264 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 34 conjunts are in the unsatisfiable core [2019-12-07 17:19:58,084 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:19:58,089 INFO L377 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 [2019-12-07 17:19:58,090 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:19:58,093 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:19:58,094 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:19:58,094 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:19:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:19:58,423 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:00,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67704749] [2019-12-07 17:20:00,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:00,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2019-12-07 17:20:00,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166529662] [2019-12-07 17:20:00,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-12-07 17:20:00,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:00,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-12-07 17:20:00,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2019-12-07 17:20:00,066 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 33 states. [2019-12-07 17:20:04,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:04,274 INFO L93 Difference]: Finished difference Result 150 states and 154 transitions. [2019-12-07 17:20:04,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 17:20:04,275 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 74 [2019-12-07 17:20:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:04,276 INFO L225 Difference]: With dead ends: 150 [2019-12-07 17:20:04,276 INFO L226 Difference]: Without dead ends: 150 [2019-12-07 17:20:04,276 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 112 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2019-12-07 17:20:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-12-07 17:20:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-12-07 17:20:04,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-12-07 17:20:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2019-12-07 17:20:04,279 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 74 [2019-12-07 17:20:04,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:04,279 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2019-12-07 17:20:04,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-12-07 17:20:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2019-12-07 17:20:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-12-07 17:20:04,280 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:04,280 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:04,480 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2019-12-07 17:20:04,481 INFO L410 AbstractCegarLoop]: === Iteration 20 === [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]=== [2019-12-07 17:20:04,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:04,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1519816277, now seen corresponding path program 1 times [2019-12-07 17:20:04,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:04,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100349463] [2019-12-07 17:20:04,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:04,667 INFO L264 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 17:20:04,668 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:04,732 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:04,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:20:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:04,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100349463] [2019-12-07 17:20:04,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:04,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-12-07 17:20:04,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083246103] [2019-12-07 17:20:04,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 17:20:04,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:04,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 17:20:04,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-12-07 17:20:04,876 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 14 states. [2019-12-07 17:20:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:04,965 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2019-12-07 17:20:04,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 17:20:04,965 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2019-12-07 17:20:04,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:04,966 INFO L225 Difference]: With dead ends: 156 [2019-12-07 17:20:04,966 INFO L226 Difference]: Without dead ends: 150 [2019-12-07 17:20:04,966 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-12-07 17:20:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-12-07 17:20:04,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-12-07 17:20:04,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-12-07 17:20:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 153 transitions. [2019-12-07 17:20:04,969 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 153 transitions. Word has length 85 [2019-12-07 17:20:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:04,969 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 153 transitions. [2019-12-07 17:20:04,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 17:20:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 153 transitions. [2019-12-07 17:20:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-12-07 17:20:04,970 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:04,970 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:05,170 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2019-12-07 17:20:05,171 INFO L410 AbstractCegarLoop]: === Iteration 21 === [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]=== [2019-12-07 17:20:05,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:05,171 INFO L82 PathProgramCache]: Analyzing trace with hash 2050797402, now seen corresponding path program 1 times [2019-12-07 17:20:05,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:05,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354751919] [2019-12-07 17:20:05,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:05,391 INFO L264 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 23 conjunts are in the unsatisfiable core [2019-12-07 17:20:05,393 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:05,396 INFO L377 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 [2019-12-07 17:20:05,396 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:05,397 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:05,398 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:05,398 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:20:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:05,589 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:05,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354751919] [2019-12-07 17:20:05,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:05,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2019-12-07 17:20:05,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976655250] [2019-12-07 17:20:05,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 17:20:05,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:05,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 17:20:05,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-12-07 17:20:05,713 INFO L87 Difference]: Start difference. First operand 150 states and 153 transitions. Second operand 17 states. [2019-12-07 17:20:06,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:06,641 INFO L93 Difference]: Finished difference Result 164 states and 166 transitions. [2019-12-07 17:20:06,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 17:20:06,642 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 98 [2019-12-07 17:20:06,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:06,643 INFO L225 Difference]: With dead ends: 164 [2019-12-07 17:20:06,643 INFO L226 Difference]: Without dead ends: 164 [2019-12-07 17:20:06,643 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 173 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2019-12-07 17:20:06,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-12-07 17:20:06,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2019-12-07 17:20:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 17:20:06,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 151 transitions. [2019-12-07 17:20:06,646 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 151 transitions. Word has length 98 [2019-12-07 17:20:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:06,646 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 151 transitions. [2019-12-07 17:20:06,646 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 17:20:06,646 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 151 transitions. [2019-12-07 17:20:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-12-07 17:20:06,647 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:06,647 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:06,847 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3 [2019-12-07 17:20:06,847 INFO L410 AbstractCegarLoop]: === Iteration 22 === [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]=== [2019-12-07 17:20:06,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:06,847 INFO L82 PathProgramCache]: Analyzing trace with hash 2050797403, now seen corresponding path program 1 times [2019-12-07 17:20:06,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:06,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812415595] [2019-12-07 17:20:06,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:07,036 INFO L264 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 34 conjunts are in the unsatisfiable core [2019-12-07 17:20:07,038 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:07,044 INFO L377 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 [2019-12-07 17:20:07,044 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:07,050 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:07,050 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:07,050 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:20:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:07,393 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:09,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812415595] [2019-12-07 17:20:09,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:09,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2019-12-07 17:20:09,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723614757] [2019-12-07 17:20:09,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-12-07 17:20:09,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:09,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-12-07 17:20:09,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2019-12-07 17:20:09,041 INFO L87 Difference]: Start difference. First operand 148 states and 151 transitions. Second operand 33 states. [2019-12-07 17:20:12,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:12,886 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2019-12-07 17:20:12,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 17:20:12,887 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 98 [2019-12-07 17:20:12,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:12,888 INFO L225 Difference]: With dead ends: 146 [2019-12-07 17:20:12,888 INFO L226 Difference]: Without dead ends: 146 [2019-12-07 17:20:12,888 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 158 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2019-12-07 17:20:12,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-12-07 17:20:12,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-12-07 17:20:12,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 17:20:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 149 transitions. [2019-12-07 17:20:12,890 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 149 transitions. Word has length 98 [2019-12-07 17:20:12,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:12,891 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 149 transitions. [2019-12-07 17:20:12,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-12-07 17:20:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 149 transitions. [2019-12-07 17:20:12,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-12-07 17:20:12,891 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:12,891 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:13,092 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3 [2019-12-07 17:20:13,092 INFO L410 AbstractCegarLoop]: === Iteration 23 === [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]=== [2019-12-07 17:20:13,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:13,093 INFO L82 PathProgramCache]: Analyzing trace with hash -797927977, now seen corresponding path program 1 times [2019-12-07 17:20:13,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:13,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773795322] [2019-12-07 17:20:13,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:13,312 INFO L264 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:20:13,313 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:13,367 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:13,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773795322] [2019-12-07 17:20:13,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:13,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2019-12-07 17:20:13,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948328646] [2019-12-07 17:20:13,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 17:20:13,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:13,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 17:20:13,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-12-07 17:20:13,550 INFO L87 Difference]: Start difference. First operand 146 states and 149 transitions. Second operand 11 states. [2019-12-07 17:20:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:13,605 INFO L93 Difference]: Finished difference Result 148 states and 150 transitions. [2019-12-07 17:20:13,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:20:13,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2019-12-07 17:20:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:13,606 INFO L225 Difference]: With dead ends: 148 [2019-12-07 17:20:13,606 INFO L226 Difference]: Without dead ends: 146 [2019-12-07 17:20:13,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-12-07 17:20:13,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-12-07 17:20:13,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-12-07 17:20:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 17:20:13,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 148 transitions. [2019-12-07 17:20:13,609 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 148 transitions. Word has length 96 [2019-12-07 17:20:13,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:13,609 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 148 transitions. [2019-12-07 17:20:13,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 17:20:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2019-12-07 17:20:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-12-07 17:20:13,609 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:13,610 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:13,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 mathsat -unsat_core_generation=3 [2019-12-07 17:20:13,810 INFO L410 AbstractCegarLoop]: === Iteration 24 === [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]=== [2019-12-07 17:20:13,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:13,811 INFO L82 PathProgramCache]: Analyzing trace with hash 693754465, now seen corresponding path program 1 times [2019-12-07 17:20:13,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:13,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166749057] [2019-12-07 17:20:13,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:14,063 INFO L264 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 35 conjunts are in the unsatisfiable core [2019-12-07 17:20:14,065 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:14,068 INFO L377 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 [2019-12-07 17:20:14,068 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:14,070 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:14,070 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:14,070 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 17:20:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:14,365 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:14,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166749057] [2019-12-07 17:20:14,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:14,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2019-12-07 17:20:14,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90843238] [2019-12-07 17:20:14,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-12-07 17:20:14,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:14,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-12-07 17:20:14,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2019-12-07 17:20:14,535 INFO L87 Difference]: Start difference. First operand 146 states and 148 transitions. Second operand 21 states. [2019-12-07 17:20:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:15,760 INFO L93 Difference]: Finished difference Result 156 states and 157 transitions. [2019-12-07 17:20:15,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-12-07 17:20:15,760 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 111 [2019-12-07 17:20:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:15,761 INFO L225 Difference]: With dead ends: 156 [2019-12-07 17:20:15,761 INFO L226 Difference]: Without dead ends: 156 [2019-12-07 17:20:15,762 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 191 SyntacticMatches, 11 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2019-12-07 17:20:15,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-12-07 17:20:15,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 144. [2019-12-07 17:20:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 17:20:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 146 transitions. [2019-12-07 17:20:15,764 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 146 transitions. Word has length 111 [2019-12-07 17:20:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:15,765 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 146 transitions. [2019-12-07 17:20:15,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-12-07 17:20:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 146 transitions. [2019-12-07 17:20:15,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-12-07 17:20:15,765 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:15,765 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:15,966 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 mathsat -unsat_core_generation=3 [2019-12-07 17:20:15,966 INFO L410 AbstractCegarLoop]: === Iteration 25 === [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]=== [2019-12-07 17:20:15,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:15,966 INFO L82 PathProgramCache]: Analyzing trace with hash 693754466, now seen corresponding path program 1 times [2019-12-07 17:20:15,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:15,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298792018] [2019-12-07 17:20:15,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 26 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:16,242 INFO L264 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 46 conjunts are in the unsatisfiable core [2019-12-07 17:20:16,245 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:16,251 INFO L377 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 [2019-12-07 17:20:16,251 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:16,257 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:16,257 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:16,257 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 17:20:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:16,731 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:19,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298792018] [2019-12-07 17:20:19,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:19,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2019-12-07 17:20:19,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381516416] [2019-12-07 17:20:19,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-12-07 17:20:19,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:19,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-12-07 17:20:19,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2019-12-07 17:20:19,134 INFO L87 Difference]: Start difference. First operand 144 states and 146 transitions. Second operand 41 states. [2019-12-07 17:20:24,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:24,195 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2019-12-07 17:20:24,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-12-07 17:20:24,196 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 111 [2019-12-07 17:20:24,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:24,196 INFO L225 Difference]: With dead ends: 142 [2019-12-07 17:20:24,196 INFO L226 Difference]: Without dead ends: 142 [2019-12-07 17:20:24,197 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 174 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2019-12-07 17:20:24,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-07 17:20:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-12-07 17:20:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-07 17:20:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 144 transitions. [2019-12-07 17:20:24,199 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 144 transitions. Word has length 111 [2019-12-07 17:20:24,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:24,199 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 144 transitions. [2019-12-07 17:20:24,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-12-07 17:20:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 144 transitions. [2019-12-07 17:20:24,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-12-07 17:20:24,200 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:24,200 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:24,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 mathsat -unsat_core_generation=3 [2019-12-07 17:20:24,401 INFO L410 AbstractCegarLoop]: === Iteration 26 === [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]=== [2019-12-07 17:20:24,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:24,401 INFO L82 PathProgramCache]: Analyzing trace with hash 256905644, now seen corresponding path program 1 times [2019-12-07 17:20:24,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:24,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942051546] [2019-12-07 17:20:24,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 27 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:24,687 INFO L264 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 17:20:24,690 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:25,325 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:26,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942051546] [2019-12-07 17:20:26,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:26,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2019-12-07 17:20:26,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149762624] [2019-12-07 17:20:26,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-12-07 17:20:26,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:20:26,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-12-07 17:20:26,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2019-12-07 17:20:26,090 INFO L87 Difference]: Start difference. First operand 142 states and 144 transitions. Second operand 40 states. [2019-12-07 17:20:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:20:28,401 INFO L93 Difference]: Finished difference Result 141 states and 143 transitions. [2019-12-07 17:20:28,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-12-07 17:20:28,402 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 114 [2019-12-07 17:20:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:20:28,403 INFO L225 Difference]: With dead ends: 141 [2019-12-07 17:20:28,403 INFO L226 Difference]: Without dead ends: 141 [2019-12-07 17:20:28,404 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 182 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2019-12-07 17:20:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-12-07 17:20:28,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2019-12-07 17:20:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-12-07 17:20:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 143 transitions. [2019-12-07 17:20:28,407 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 143 transitions. Word has length 114 [2019-12-07 17:20:28,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:20:28,408 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 143 transitions. [2019-12-07 17:20:28,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-12-07 17:20:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 143 transitions. [2019-12-07 17:20:28,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-12-07 17:20:28,408 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:20:28,409 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:20:28,609 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 mathsat -unsat_core_generation=3 [2019-12-07 17:20:28,609 INFO L410 AbstractCegarLoop]: === Iteration 27 === [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]=== [2019-12-07 17:20:28,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:20:28,610 INFO L82 PathProgramCache]: Analyzing trace with hash -155348315, now seen corresponding path program 1 times [2019-12-07 17:20:28,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:20:28,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830633219] [2019-12-07 17:20:28,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/mathsat Starting monitored process 28 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with mathsat -unsat_core_generation=3 [2019-12-07 17:20:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:28,986 INFO L264 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 93 conjunts are in the unsatisfiable core [2019-12-07 17:20:28,989 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:29,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:29,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:29,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:29,038 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:29,038 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:29,080 INFO L343 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2019-12-07 17:20:29,080 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2019-12-07 17:20:29,080 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:29,095 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:29,096 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:29,096 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:36 [2019-12-07 17:20:29,270 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:20:29,273 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:29,274 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 17:20:29,274 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:22 [2019-12-07 17:20:31,278 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_1 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd |c_LDV_INIT_LIST_HEAD_#in~list.offset| (_ bv4 32)))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_1) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))) |c_#memory_int|)) is different from true [2019-12-07 17:20:31,391 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 30 [2019-12-07 17:20:31,391 INFO L343 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2019-12-07 17:20:31,391 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2019-12-07 17:20:31,392 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:31,411 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:31,412 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:31,412 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:40 [2019-12-07 17:20:33,119 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,120 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,123 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,123 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:33,124 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,124 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:33,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,126 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 17:20:33,127 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:33,127 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:33,136 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:33,136 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 192 treesize of output 164 [2019-12-07 17:20:33,138 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:33,162 INFO L614 ElimStorePlain]: treesize reduction 78, result has 47.3 percent of original size [2019-12-07 17:20:33,162 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:33,162 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:195, output treesize:70 [2019-12-07 17:20:34,713 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:34,713 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 60 [2019-12-07 17:20:34,714 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:34,715 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:34,715 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:34,716 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:47 [2019-12-07 17:20:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-12-07 17:20:34,871 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:20:40,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:20:40,458 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 516 treesize of output 406 [2019-12-07 17:20:40,463 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,463 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,464 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,464 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,464 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,465 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,470 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,471 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,471 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,472 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,472 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,473 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,478 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,479 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,479 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,479 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,480 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,480 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 17:20:40,481 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 45 [2019-12-07 17:20:40,483 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 17:20:40,484 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:40,484 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 17:20:40,505 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 17:20:40,505 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 17:20:40,505 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:1246, output treesize:730 [2019-12-07 17:20:55,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830633219] [2019-12-07 17:20:55,734 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. [2019-12-07 17:20:55,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [114212683] [2019-12-07 17:20:55,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 17:20:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:56,305 INFO L264 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 138 conjunts are in the unsatisfiable core [2019-12-07 17:20:56,307 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:56,308 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@4e1fc868 [2019-12-07 17:20:56,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66012533] [2019-12-07 17:20:56,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad3c0451-0721-4e86-8557-cd255859daec/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:20:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:20:56,459 INFO L264 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 93 conjunts are in the unsatisfiable core [2019-12-07 17:20:56,461 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:20:56,463 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@4e1fc868 [2019-12-07 17:20:56,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:20:56,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2019-12-07 17:20:56,463 ERROR L206 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2019-12-07 17:20:56,463 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:20:57,067 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 mathsat -unsat_core_generation=3,29 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 17:20:57,075 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2019-12-07 17:20:57,083 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-12-07 17:20:57,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:20:57 BoogieIcfgContainer [2019-12-07 17:20:57,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:20:57,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:20:57,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:20:57,084 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:20:57,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:19:36" (3/4) ... [2019-12-07 17:20:57,086 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:20:57,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:20:57,087 INFO L168 Benchmark]: Toolchain (without parser) took 82211.01 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 345.5 MB). Free memory was 947.0 MB in the beginning and 967.8 MB in the end (delta: -20.8 MB). Peak memory consumption was 324.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:20:57,087 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:20:57,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:20:57,087 INFO L168 Benchmark]: Boogie Preprocessor took 63.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:20:57,088 INFO L168 Benchmark]: RCFGBuilder took 869.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.6 MB in the end (delta: 111.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:20:57,088 INFO L168 Benchmark]: TraceAbstraction took 80804.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.1 MB). Free memory was 969.6 MB in the beginning and 968.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 219.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:20:57,088 INFO L168 Benchmark]: Witness Printer took 2.63 ms. Allocated memory is still 1.4 GB. Free memory was 968.0 MB in the beginning and 967.8 MB in the end (delta: 179.5 kB). Peak memory consumption was 179.5 kB. Max. memory is 11.5 GB. [2019-12-07 17:20:57,089 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 468.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 869.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.6 MB in the end (delta: 111.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 80804.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.1 MB). Free memory was 969.6 MB in the beginning and 968.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 219.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.63 ms. Allocated memory is still 1.4 GB. Free memory was 968.0 MB in the beginning and 967.8 MB in the end (delta: 179.5 kB). Peak memory consumption was 179.5 kB. Max. memory is 11.5 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: 702]: Unable to prove that free always succeeds Unable to prove that free 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) }; [L770] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] 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 FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_get(kobj) [L758] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] EXPR v->counter [L658] temp = v->counter [L659] temp += i [L660] v->counter = temp [L661] return temp; [L686] RET ldv_atomic_add_return(1, (&kref->refcount)) [L718] RET ldv_kref_get(&kobj->kref) [L719] return kobj; [L758] RET ldv_kobject_get(kobj) [L766] RET f_22_get(kobj) [L767] 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, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 341 locations, 71 error locations. Result: UNKNOWN, OverallTime: 80.7s, OverallIterations: 27, TraceHistogramMax: 16, AutomataDifference: 28.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3318 SDtfs, 1465 SDslu, 27170 SDs, 0 SdLazy, 13548 SolverSat, 365 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3084 GetRequests, 2559 SyntacticMatches, 67 SemanticMatches, 458 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2272 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred 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, 26 MinimizatonAttempts, 97 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 14.6s InterpolantComputationTime, 1514 NumberOfCodeBlocks, 1478 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2976 ConstructedInterpolants, 503 QuantifiedInterpolants, 881187 SizeOfPredicates, 159 NumberOfNonLiveVariables, 6236 ConjunctsInSsa, 421 ConjunctsInUnsatCore, 52 InterpolantComputations, 46 PerfectInterpolantSequences, 3788/4046 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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...