./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3d056a1f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4e7f10697bf40be831ee927139b8f7b8ae344247 ......................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4e7f10697bf40be831ee927139b8f7b8ae344247 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- This is Ultimate 0.1.24-3d056a1 [2019-11-22 13:44:59,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:44:59,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:44:59,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:44:59,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:44:59,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:44:59,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:44:59,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:44:59,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:44:59,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:44:59,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:44:59,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:44:59,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:44:59,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:44:59,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:44:59,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:44:59,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:44:59,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:44:59,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:44:59,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:44:59,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:44:59,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:44:59,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:44:59,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:44:59,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:44:59,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:44:59,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:44:59,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:44:59,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:44:59,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:44:59,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:44:59,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:44:59,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:44:59,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:44:59,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:44:59,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:44:59,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:44:59,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:44:59,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:44:59,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:44:59,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:44:59,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-22 13:44:59,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:44:59,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:44:59,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:44:59,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:44:59,264 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:44:59,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:44:59,264 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:44:59,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:44:59,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:44:59,265 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:44:59,266 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:44:59,267 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:44:59,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:44:59,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:44:59,268 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:44:59,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:44:59,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:44:59,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:44:59,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:44:59,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:44:59,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:44:59,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:44:59,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 13:44:59,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 13:44:59,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-22 13:44:59,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:44:59,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:44:59,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:44:59,635 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:44:59,635 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:44:59,636 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 13:44:59,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68adf75b/df4a99d497ce4d7bbc2b9720eb003494/FLAG97c8c2298 [2019-11-22 13:45:00,228 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:45:00,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 13:45:00,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68adf75b/df4a99d497ce4d7bbc2b9720eb003494/FLAG97c8c2298 [2019-11-22 13:45:00,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68adf75b/df4a99d497ce4d7bbc2b9720eb003494 [2019-11-22 13:45:00,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:45:00,524 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:45:00,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:45:00,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:45:00,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:45:00,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:00" (1/1) ... [2019-11-22 13:45:00,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6f8193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:00, skipping insertion in model container [2019-11-22 13:45:00,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:00" (1/1) ... [2019-11-22 13:45:00,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:45:00,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:45:01,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:45:01,139 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) [2019-11-22 13:45:01,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10250943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:01, skipping insertion in model container [2019-11-22 13:45:01,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:45:01,141 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-22 13:45:01,145 INFO L168 Benchmark]: Toolchain (without parser) took 619.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:01,146 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:45:01,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:01,152 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 612.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 577]: 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 0.1.24-3d056a1 [2019-11-22 13:45:02,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:45:02,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:45:02,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:45:02,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:45:02,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:45:02,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:45:02,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:45:02,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:45:02,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:45:02,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:45:02,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:45:02,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:45:02,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:45:02,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:45:02,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:45:03,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:45:03,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:45:03,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:45:03,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:45:03,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:45:03,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:45:03,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:45:03,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:45:03,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:45:03,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:45:03,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:45:03,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:45:03,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:45:03,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:45:03,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:45:03,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:45:03,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:45:03,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:45:03,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:45:03,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:45:03,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:45:03,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:45:03,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:45:03,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:45:03,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:45:03,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 13:45:03,049 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:45:03,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:45:03,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:45:03,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:45:03,051 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:45:03,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:45:03,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:45:03,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:45:03,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:45:03,053 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:45:03,053 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:45:03,053 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:45:03,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:45:03,054 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:45:03,054 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 13:45:03,054 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 13:45:03,055 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:45:03,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:45:03,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:45:03,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:45:03,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:45:03,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:45:03,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:45:03,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:45:03,057 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 13:45:03,057 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 13:45:03,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:45:03,058 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-22 13:45:03,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:45:03,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:45:03,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:45:03,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:45:03,405 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:45:03,405 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 13:45:03,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c33189a7/77d5a087707f43fea032f988cfb86d69/FLAG9ae2c990c [2019-11-22 13:45:04,025 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:45:04,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 13:45:04,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c33189a7/77d5a087707f43fea032f988cfb86d69/FLAG9ae2c990c [2019-11-22 13:45:04,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c33189a7/77d5a087707f43fea032f988cfb86d69 [2019-11-22 13:45:04,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:45:04,336 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:45:04,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:45:04,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:45:04,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:45:04,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:04" (1/1) ... [2019-11-22 13:45:04,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c16723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:04, skipping insertion in model container [2019-11-22 13:45:04,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:04" (1/1) ... [2019-11-22 13:45:04,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:45:04,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:45:04,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:45:04,963 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 13:45:04,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:45:05,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:45:05,048 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 13:45:05,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:45:05,241 INFO L208 MainTranslator]: Completed translation [2019-11-22 13:45:05,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05 WrapperNode [2019-11-22 13:45:05,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:45:05,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 13:45:05,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 13:45:05,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 13:45:05,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... [2019-11-22 13:45:05,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... [2019-11-22 13:45:05,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... [2019-11-22 13:45:05,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... [2019-11-22 13:45:05,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... [2019-11-22 13:45:05,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... [2019-11-22 13:45:05,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... [2019-11-22 13:45:05,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 13:45:05,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 13:45:05,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 13:45:05,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 13:45:05,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:45:05,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 13:45:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 13:45:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:45:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:45:05,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 13:45:05,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 13:45:05,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 13:45:05,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 13:45:05,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 13:45:05,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 13:45:05,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 13:45:05,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 13:45:05,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 13:45:05,467 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:45:05,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 13:45:05,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 13:45:05,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 13:45:05,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 13:45:05,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 13:45:05,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 13:45:05,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 13:45:05,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 13:45:05,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 13:45:05,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 13:45:05,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 13:45:05,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 13:45:05,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 13:45:05,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 13:45:05,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 13:45:05,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 13:45:05,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 13:45:05,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 13:45:05,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 13:45:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 13:45:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 13:45:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 13:45:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 13:45:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 13:45:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 13:45:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 13:45:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 13:45:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 13:45:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-22 13:45:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-22 13:45:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 13:45:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 13:45:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 13:45:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 13:45:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 13:45:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 13:45:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 13:45:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 13:45:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 13:45:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 13:45:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 13:45:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 13:45:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 13:45:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 13:45:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 13:45:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 13:45:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 13:45:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 13:45:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 13:45:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 13:45:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 13:45:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 13:45:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 13:45:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 13:45:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 13:45:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 13:45:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 13:45:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 13:45:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 13:45:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 13:45:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 13:45:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 13:45:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 13:45:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 13:45:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 13:45:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 13:45:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 13:45:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 13:45:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 13:45:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 13:45:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 13:45:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 13:45:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 13:45:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 13:45:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 13:45:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 13:45:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 13:45:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 13:45:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 13:45:05,484 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 13:45:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 13:45:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 13:45:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 13:45:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 13:45:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 13:45:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 13:45:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 13:45:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 13:45:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 13:45:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 13:45:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 13:45:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 13:45:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 13:45:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 13:45:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 13:45:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 13:45:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 13:45:05,488 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 13:45:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 13:45:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 13:45:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 13:45:05,489 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 13:45:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 13:45:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 13:45:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 13:45:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 13:45:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 13:45:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 13:45:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 13:45:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 13:45:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 13:45:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 13:45:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 13:45:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 13:45:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 13:45:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 13:45:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 13:45:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 13:45:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 13:45:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 13:45:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 13:45:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 13:45:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 13:45:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 13:45:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 13:45:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 13:45:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 13:45:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 13:45:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 13:45:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 13:45:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 13:45:05,497 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 13:45:05,498 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 13:45:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 13:45:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 13:45:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 13:45:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 13:45:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 13:45:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 13:45:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 13:45:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 13:45:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 13:45:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 13:45:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 13:45:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 13:45:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 13:45:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 13:45:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 13:45:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 13:45:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 13:45:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 13:45:05,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 13:45:05,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 13:45:05,503 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:45:05,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 13:45:05,503 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 13:45:05,504 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 13:45:05,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 13:45:05,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 13:45:05,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 13:45:05,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 13:45:05,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 13:45:05,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 13:45:05,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 13:45:05,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 13:45:05,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 13:45:05,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 13:45:05,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 13:45:05,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 13:45:05,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 13:45:05,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 13:45:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 13:45:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 13:45:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 13:45:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 13:45:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:45:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 13:45:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 13:45:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 13:45:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 13:45:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 13:45:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 13:45:05,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 13:45:05,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 13:45:05,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 13:45:05,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 13:45:05,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 13:45:05,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 13:45:05,510 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 13:45:05,510 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 13:45:05,510 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-22 13:45:05,510 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-22 13:45:05,510 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 13:45:05,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 13:45:05,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 13:45:05,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 13:45:05,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 13:45:05,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 13:45:05,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:45:05,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 13:45:05,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 13:45:05,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 13:45:05,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 13:45:06,185 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:45:06,625 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:45:07,174 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 13:45:07,174 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-22 13:45:07,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:45:07 BoogieIcfgContainer [2019-11-22 13:45:07,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 13:45:07,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 13:45:07,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 13:45:07,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 13:45:07,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:45:04" (1/3) ... [2019-11-22 13:45:07,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3874e353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:45:07, skipping insertion in model container [2019-11-22 13:45:07,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:05" (2/3) ... [2019-11-22 13:45:07,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3874e353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:45:07, skipping insertion in model container [2019-11-22 13:45:07,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:45:07" (3/3) ... [2019-11-22 13:45:07,186 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-22 13:45:07,196 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 13:45:07,206 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-22 13:45:07,218 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-22 13:45:07,243 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 13:45:07,244 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 13:45:07,244 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 13:45:07,244 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 13:45:07,244 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 13:45:07,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 13:45:07,245 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 13:45:07,245 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 13:45:07,275 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-22 13:45:07,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 13:45:07,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:07,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:07,286 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:07,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:07,293 INFO L82 PathProgramCache]: Analyzing trace with hash -67233649, now seen corresponding path program 1 times [2019-11-22 13:45:07,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:07,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [701760848] [2019-11-22 13:45:07,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:07,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:45:07,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:07,746 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 [2019-11-22 13:45:07,747 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:07,759 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:07,759 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:07,760 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 13:45:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:07,798 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:07,869 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [701760848] [2019-11-22 13:45:07,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:07,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 13:45:07,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591717039] [2019-11-22 13:45:07,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:45:07,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:07,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:45:07,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:45:07,903 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-22 13:45:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:08,184 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-22 13:45:08,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:45:08,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 13:45:08,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:08,201 INFO L225 Difference]: With dead ends: 87 [2019-11-22 13:45:08,202 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 13:45:08,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:45:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 13:45:08,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-22 13:45:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-22 13:45:08,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-22 13:45:08,264 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-22 13:45:08,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:08,264 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-22 13:45:08,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:45:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-22 13:45:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 13:45:08,266 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:08,266 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:08,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:08,471 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:08,473 INFO L82 PathProgramCache]: Analyzing trace with hash -67233648, now seen corresponding path program 1 times [2019-11-22 13:45:08,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:08,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1868594880] [2019-11-22 13:45:08,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:08,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 13:45:08,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:08,798 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 [2019-11-22 13:45:08,799 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:08,809 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:08,810 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:08,810 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 13:45:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:08,898 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:09,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1868594880] [2019-11-22 13:45:09,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:09,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-22 13:45:09,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285227031] [2019-11-22 13:45:09,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-22 13:45:09,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:09,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-22 13:45:09,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-22 13:45:09,687 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-22 13:45:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:11,247 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2019-11-22 13:45:11,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 13:45:11,250 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-22 13:45:11,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:11,252 INFO L225 Difference]: With dead ends: 95 [2019-11-22 13:45:11,252 INFO L226 Difference]: Without dead ends: 95 [2019-11-22 13:45:11,253 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-22 13:45:11,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-22 13:45:11,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2019-11-22 13:45:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-22 13:45:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-22 13:45:11,265 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-22 13:45:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:11,266 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-22 13:45:11,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-22 13:45:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-22 13:45:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 13:45:11,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:11,267 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:11,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:11,472 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:11,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:11,473 INFO L82 PathProgramCache]: Analyzing trace with hash 820270032, now seen corresponding path program 1 times [2019-11-22 13:45:11,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:11,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1215221495] [2019-11-22 13:45:11,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:11,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 13:45:11,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:11,744 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:11,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1215221495] [2019-11-22 13:45:11,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:11,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 13:45:11,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333318799] [2019-11-22 13:45:11,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:45:11,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:11,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:45:11,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:45:11,793 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-22 13:45:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:11,850 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-22 13:45:11,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:45:11,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 13:45:11,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:11,852 INFO L225 Difference]: With dead ends: 84 [2019-11-22 13:45:11,852 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 13:45:11,853 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:45:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 13:45:11,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-22 13:45:11,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-22 13:45:11,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-22 13:45:11,863 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-22 13:45:11,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:11,864 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-22 13:45:11,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:45:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-22 13:45:11,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 13:45:11,865 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:11,865 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:12,078 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:12,079 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:12,080 INFO L82 PathProgramCache]: Analyzing trace with hash -2083416263, now seen corresponding path program 1 times [2019-11-22 13:45:12,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:12,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1562729988] [2019-11-22 13:45:12,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:12,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:45:12,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:12,312 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:12,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1562729988] [2019-11-22 13:45:12,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:12,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 13:45:12,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850804292] [2019-11-22 13:45:12,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:45:12,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:12,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:45:12,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:45:12,386 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-22 13:45:12,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:12,436 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-22 13:45:12,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:45:12,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 13:45:12,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:12,438 INFO L225 Difference]: With dead ends: 84 [2019-11-22 13:45:12,438 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 13:45:12,438 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 [2019-11-22 13:45:12,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 13:45:12,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-22 13:45:12,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-22 13:45:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-22 13:45:12,446 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-22 13:45:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:12,446 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-22 13:45:12,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:45:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-22 13:45:12,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 13:45:12,447 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:12,447 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:12,650 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:12,651 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:12,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:12,652 INFO L82 PathProgramCache]: Analyzing trace with hash -340605928, now seen corresponding path program 1 times [2019-11-22 13:45:12,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:12,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2023339700] [2019-11-22 13:45:12,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:12,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:45:12,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:12,882 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:12,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2023339700] [2019-11-22 13:45:12,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:12,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 13:45:12,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857102503] [2019-11-22 13:45:12,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 13:45:12,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:12,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 13:45:12,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:45:12,948 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-22 13:45:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:13,087 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-22 13:45:13,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 13:45:13,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-22 13:45:13,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:13,090 INFO L225 Difference]: With dead ends: 120 [2019-11-22 13:45:13,090 INFO L226 Difference]: Without dead ends: 115 [2019-11-22 13:45:13,091 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:45:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-22 13:45:13,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-22 13:45:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-22 13:45:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-22 13:45:13,098 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-22 13:45:13,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:13,099 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-22 13:45:13,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 13:45:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-22 13:45:13,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 13:45:13,100 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:13,100 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:13,308 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:13,314 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:13,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:13,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1976385840, now seen corresponding path program 1 times [2019-11-22 13:45:13,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:13,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1940472474] [2019-11-22 13:45:13,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:13,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-22 13:45:13,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:13,638 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 [2019-11-22 13:45:13,638 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:13,644 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:13,644 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:13,645 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 13:45:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:13,757 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:14,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:14,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1940472474] [2019-11-22 13:45:14,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:45:14,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-22 13:45:14,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988940134] [2019-11-22 13:45:14,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 13:45:14,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:14,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 13:45:14,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-22 13:45:14,829 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 18 states. [2019-11-22 13:45:15,625 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-22 13:45:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:16,991 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-22 13:45:16,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-22 13:45:16,992 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-22 13:45:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:16,993 INFO L225 Difference]: With dead ends: 97 [2019-11-22 13:45:16,994 INFO L226 Difference]: Without dead ends: 97 [2019-11-22 13:45:16,994 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2019-11-22 13:45:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-22 13:45:17,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-22 13:45:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-22 13:45:17,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-22 13:45:17,004 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-22 13:45:17,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:17,004 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-22 13:45:17,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 13:45:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-22 13:45:17,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-22 13:45:17,006 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:17,006 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:17,209 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:17,210 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:17,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:17,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1887639459, now seen corresponding path program 1 times [2019-11-22 13:45:17,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:17,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1656914592] [2019-11-22 13:45:17,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:17,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:45:17,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:17,615 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:17,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1656914592] [2019-11-22 13:45:17,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:45:17,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-22 13:45:17,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858114860] [2019-11-22 13:45:17,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-22 13:45:17,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:17,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-22 13:45:17,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-22 13:45:17,762 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-22 13:45:18,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:18,129 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-22 13:45:18,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-22 13:45:18,130 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-22 13:45:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:18,132 INFO L225 Difference]: With dead ends: 98 [2019-11-22 13:45:18,132 INFO L226 Difference]: Without dead ends: 98 [2019-11-22 13:45:18,132 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-22 13:45:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-22 13:45:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-22 13:45:18,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-22 13:45:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-22 13:45:18,151 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-22 13:45:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:18,151 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-22 13:45:18,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-22 13:45:18,153 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-22 13:45:18,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-22 13:45:18,154 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:18,154 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:18,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:18,359 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:18,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:18,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1668351152, now seen corresponding path program 2 times [2019-11-22 13:45:18,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:18,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1084200024] [2019-11-22 13:45:18,362 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:18,699 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 13:45:18,699 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 13:45:18,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-22 13:45:18,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:18,717 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 [2019-11-22 13:45:18,717 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:18,722 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:18,723 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:18,723 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 13:45:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:18,973 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:21,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1084200024] [2019-11-22 13:45:21,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:45:21,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-22 13:45:21,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175952348] [2019-11-22 13:45:21,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-22 13:45:21,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:21,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-22 13:45:21,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-22 13:45:21,140 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 26 states. [2019-11-22 13:45:24,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:24,553 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-22 13:45:24,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-22 13:45:24,554 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-22 13:45:24,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:24,555 INFO L225 Difference]: With dead ends: 108 [2019-11-22 13:45:24,556 INFO L226 Difference]: Without dead ends: 108 [2019-11-22 13:45:24,557 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 13:45:24,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-22 13:45:24,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-22 13:45:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-22 13:45:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-22 13:45:24,564 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-22 13:45:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:24,565 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-22 13:45:24,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-22 13:45:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-22 13:45:24,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-22 13:45:24,567 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:24,567 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:24,770 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:24,771 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:24,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:24,772 INFO L82 PathProgramCache]: Analyzing trace with hash -67864624, now seen corresponding path program 3 times [2019-11-22 13:45:24,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:24,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [635300387] [2019-11-22 13:45:24,773 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:25,348 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-22 13:45:25,348 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 13:45:25,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-22 13:45:25,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:25,372 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 [2019-11-22 13:45:25,372 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:25,378 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:25,378 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:25,379 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 13:45:26,187 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2019-11-22 13:45:26,188 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:26,202 INFO L567 ElimStorePlain]: treesize reduction 18, result has 37.9 percent of original size [2019-11-22 13:45:26,202 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:26,203 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:36, output treesize:11 [2019-11-22 13:45:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:26,283 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:26,998 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-22 13:45:27,600 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2019-11-22 13:45:27,918 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-22 13:45:28,491 WARN L192 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2019-11-22 13:45:28,861 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-22 13:45:29,515 WARN L192 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-11-22 13:45:30,023 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-11-22 13:45:30,964 WARN L192 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-11-22 13:45:31,720 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-22 13:45:32,520 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-22 13:45:33,356 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-22 13:45:34,460 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-11-22 13:45:35,009 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2019-11-22 13:45:36,006 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:45:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 13 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:36,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [635300387] [2019-11-22 13:45:36,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:45:36,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 42 [2019-11-22 13:45:36,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866646798] [2019-11-22 13:45:36,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-11-22 13:45:36,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:36,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-11-22 13:45:36,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1445, Unknown=0, NotChecked=0, Total=1722 [2019-11-22 13:45:36,780 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 42 states. [2019-11-22 13:45:37,584 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-22 13:45:38,277 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-11-22 13:45:42,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:42,458 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2019-11-22 13:45:42,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 13:45:42,460 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 46 [2019-11-22 13:45:42,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:42,461 INFO L225 Difference]: With dead ends: 102 [2019-11-22 13:45:42,461 INFO L226 Difference]: Without dead ends: 102 [2019-11-22 13:45:42,462 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 45 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=321, Invalid=1749, Unknown=0, NotChecked=0, Total=2070 [2019-11-22 13:45:42,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-22 13:45:42,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-22 13:45:42,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-22 13:45:42,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-22 13:45:42,469 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2019-11-22 13:45:42,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:42,469 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-22 13:45:42,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-11-22 13:45:42,470 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-22 13:45:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 13:45:42,471 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:42,472 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:42,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:42,678 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:42,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:42,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1492272183, now seen corresponding path program 2 times [2019-11-22 13:45:42,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:42,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [786010486] [2019-11-22 13:45:42,681 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:42,961 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 13:45:42,962 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 13:45:42,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:45:42,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:42,997 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 13:45:42,997 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 13:45:43,083 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [786010486] [2019-11-22 13:45:43,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:43,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 13:45:43,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073902321] [2019-11-22 13:45:43,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 13:45:43,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:43,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 13:45:43,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-22 13:45:43,085 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 7 states. [2019-11-22 13:45:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:43,226 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2019-11-22 13:45:43,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 13:45:43,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-22 13:45:43,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:43,232 INFO L225 Difference]: With dead ends: 133 [2019-11-22 13:45:43,232 INFO L226 Difference]: Without dead ends: 130 [2019-11-22 13:45:43,233 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-22 13:45:43,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-22 13:45:43,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 103. [2019-11-22 13:45:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-22 13:45:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2019-11-22 13:45:43,239 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 56 [2019-11-22 13:45:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:43,240 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2019-11-22 13:45:43,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 13:45:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2019-11-22 13:45:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 13:45:43,242 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:43,243 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:43,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:43,447 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:43,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917294, now seen corresponding path program 1 times [2019-11-22 13:45:43,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:43,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1268256221] [2019-11-22 13:45:43,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:43,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 13:45:43,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:43,893 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 [2019-11-22 13:45:43,894 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:43,895 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:43,896 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:43,896 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 13:45:43,992 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:43,993 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-22 13:45:43,993 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:44,013 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 13:45:44,014 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 13:45:44,014 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-22 13:45:44,044 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 13:45:44,044 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-22 13:45:46,404 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1268256221] [2019-11-22 13:45:46,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 13:45:46,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-22 13:45:46,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859863004] [2019-11-22 13:45:46,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 13:45:46,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:46,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 13:45:46,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-22 13:45:46,406 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand 8 states. [2019-11-22 13:46:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:46:11,405 INFO L93 Difference]: Finished difference Result 161 states and 179 transitions. [2019-11-22 13:46:11,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 13:46:11,408 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-22 13:46:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:46:11,409 INFO L225 Difference]: With dead ends: 161 [2019-11-22 13:46:11,410 INFO L226 Difference]: Without dead ends: 161 [2019-11-22 13:46:11,410 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2019-11-22 13:46:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-22 13:46:11,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 109. [2019-11-22 13:46:11,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-22 13:46:11,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2019-11-22 13:46:11,416 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 56 [2019-11-22 13:46:11,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:46:11,417 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2019-11-22 13:46:11,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 13:46:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2019-11-22 13:46:11,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 13:46:11,419 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:46:11,419 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:46:11,620 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:46:11,621 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:46:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:46:11,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917293, now seen corresponding path program 1 times [2019-11-22 13:46:11,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:46:11,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [523662583] [2019-11-22 13:46:11,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:46:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:46:12,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-22 13:46:12,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:46:12,111 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 [2019-11-22 13:46:12,111 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:12,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:12,123 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 [2019-11-22 13:46:12,123 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:12,133 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:12,133 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:46:12,134 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-22 13:46:14,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-22 13:46:14,315 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-22 13:46:14,315 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:14,331 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:14,340 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:14,341 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-22 13:46:14,342 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:14,356 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:14,357 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:46:14,357 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-22 13:46:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 13:46:14,398 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:46:14,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:46:14,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:46:14,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:46:14,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:46:18,568 WARN L192 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-22 13:46:18,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:46:20,054 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_257|], 2=[|v_#length_218|]} [2019-11-22 13:46:20,069 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-22 13:46:20,069 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:20,079 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:20,082 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 13:46:20,082 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:20,092 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:20,093 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:46:20,093 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-22 13:46:20,673 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-22 13:46:20,680 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-22 13:46:20,681 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:20,698 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:20,702 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 13:46:20,702 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 13:46:20,718 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:46:20,718 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 13:46:20,719 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-22 13:46:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 13:46:20,862 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [523662583] [2019-11-22 13:46:20,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:46:20,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-22 13:46:20,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832472228] [2019-11-22 13:46:20,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-22 13:46:20,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:46:20,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-22 13:46:20,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=408, Unknown=2, NotChecked=0, Total=462 [2019-11-22 13:46:20,864 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 22 states. [2019-11-22 13:46:56,424 WARN L192 SmtUtils]: Spent 8.19 s on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-11-22 13:47:03,065 WARN L192 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-11-22 13:47:16,895 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-22 13:47:24,346 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-11-22 13:47:50,915 WARN L192 SmtUtils]: Spent 8.16 s on a formula simplification. DAG size of input: 43 DAG size of output: 16 [2019-11-22 13:48:28,265 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-11-22 13:48:43,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:48:43,280 INFO L93 Difference]: Finished difference Result 251 states and 290 transitions. [2019-11-22 13:48:43,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 13:48:43,281 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-22 13:48:43,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:48:43,285 INFO L225 Difference]: With dead ends: 251 [2019-11-22 13:48:43,285 INFO L226 Difference]: Without dead ends: 251 [2019-11-22 13:48:43,285 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=138, Invalid=978, Unknown=6, NotChecked=0, Total=1122 [2019-11-22 13:48:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-22 13:48:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 150. [2019-11-22 13:48:43,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-22 13:48:43,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2019-11-22 13:48:43,295 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 56 [2019-11-22 13:48:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:48:43,295 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2019-11-22 13:48:43,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-22 13:48:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2019-11-22 13:48:43,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 13:48:43,297 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:48:43,297 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:48:43,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:48:43,502 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:48:43,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:48:43,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1452186463, now seen corresponding path program 1 times [2019-11-22 13:48:43,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:48:43,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1028915073] [2019-11-22 13:48:43,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:48:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:48:43,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:48:43,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:48:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-22 13:48:43,808 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:48:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-22 13:48:43,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1028915073] [2019-11-22 13:48:43,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:48:43,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 13:48:43,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937679937] [2019-11-22 13:48:43,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:48:43,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:48:43,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:48:43,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:48:43,848 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand 5 states. [2019-11-22 13:48:43,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:48:43,897 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2019-11-22 13:48:43,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 13:48:43,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-22 13:48:43,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:48:43,900 INFO L225 Difference]: With dead ends: 163 [2019-11-22 13:48:43,900 INFO L226 Difference]: Without dead ends: 163 [2019-11-22 13:48:43,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 13:48:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-22 13:48:43,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 152. [2019-11-22 13:48:43,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-22 13:48:43,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2019-11-22 13:48:43,908 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 58 [2019-11-22 13:48:43,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:48:43,908 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2019-11-22 13:48:43,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:48:43,909 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2019-11-22 13:48:43,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 13:48:43,909 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:48:43,910 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:48:44,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:48:44,123 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:48:44,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:48:44,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1099970498, now seen corresponding path program 1 times [2019-11-22 13:48:44,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:48:44,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1163731313] [2019-11-22 13:48:44,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:48:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:48:44,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 13:48:44,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:48:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-22 13:48:44,553 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:48:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-22 13:48:44,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1163731313] [2019-11-22 13:48:44,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:48:44,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 13:48:44,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539780992] [2019-11-22 13:48:44,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 13:48:44,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:48:44,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 13:48:44,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 13:48:44,592 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand 6 states. [2019-11-22 13:48:44,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:48:44,709 INFO L93 Difference]: Finished difference Result 161 states and 192 transitions. [2019-11-22 13:48:44,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:48:44,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-22 13:48:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:48:44,717 INFO L225 Difference]: With dead ends: 161 [2019-11-22 13:48:44,717 INFO L226 Difference]: Without dead ends: 161 [2019-11-22 13:48:44,718 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-22 13:48:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-22 13:48:44,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 154. [2019-11-22 13:48:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-22 13:48:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2019-11-22 13:48:44,725 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 58 [2019-11-22 13:48:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:48:44,726 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2019-11-22 13:48:44,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 13:48:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2019-11-22 13:48:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 13:48:44,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:48:44,728 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:48:44,928 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:48:44,929 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, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:48:44,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:48:44,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1452868472, now seen corresponding path program 1 times [2019-11-22 13:48:44,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:48:44,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1786477403] [2019-11-22 13:48:44,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:48:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:48:45,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 13:48:45,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:48:45,374 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 [2019-11-22 13:48:45,374 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:48:45,377 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:48:45,377 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:48:45,377 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 13:48:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 13:48:45,426 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:48:45,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:48:45,729 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 13:48:45,736 INFO L168 Benchmark]: Toolchain (without parser) took 221400.61 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 352.8 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -79.3 MB). Peak memory consumption was 273.5 MB. Max. memory is 11.5 GB. [2019-11-22 13:48:45,737 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:48:45,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 906.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -127.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:48:45,737 INFO L168 Benchmark]: Boogie Preprocessor took 147.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:48:45,738 INFO L168 Benchmark]: RCFGBuilder took 1784.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.5 MB in the end (delta: 119.9 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. [2019-11-22 13:48:45,738 INFO L168 Benchmark]: TraceAbstraction took 218557.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.0 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -78.1 MB). Peak memory consumption was 137.9 MB. Max. memory is 11.5 GB. [2019-11-22 13:48:45,740 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 906.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -127.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 147.70 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1784.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.5 MB in the end (delta: 119.9 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 218557.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.0 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -78.1 MB). Peak memory consumption was 137.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...