./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 14:16:22,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:16:22,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:16:22,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:16:22,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:16:22,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:16:22,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:16:22,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:16:22,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:16:22,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:16:22,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:16:22,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:16:22,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:16:22,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:16:22,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:16:22,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:16:22,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:16:22,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:16:22,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:16:22,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:16:22,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:16:22,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:16:22,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:16:22,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:16:22,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:16:22,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:16:22,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:16:22,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:16:22,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:16:22,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:16:22,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:16:22,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:16:22,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:16:22,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:16:22,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:16:22,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:16:22,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:16:22,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:16:22,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:16:22,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:16:22,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:16:22,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-22 14:16:22,922 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:16:22,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:16:22,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:16:22,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:16:22,926 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:16:22,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:16:22,927 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:16:22,927 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 14:16:22,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 14:16:22,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:16:22,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:16:22,929 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 14:16:22,930 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 14:16:22,930 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 14:16:22,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:16:22,931 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:16:22,931 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:16:22,931 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:16:22,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:16:22,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:16:22,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:16:22,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:16:22,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:16:22,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:16:22,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:16:22,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 14:16:22,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 14:16:22,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-22 14:16:23,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:16:23,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:16:23,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:16:23,269 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:16:23,270 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:16:23,270 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 14:16:23,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df6f8ea85/fa366004858a4ff09e2cbf7ec673e53b/FLAG274273c79 [2019-11-22 14:16:23,890 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:16:23,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 14:16:23,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df6f8ea85/fa366004858a4ff09e2cbf7ec673e53b/FLAG274273c79 [2019-11-22 14:16:24,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df6f8ea85/fa366004858a4ff09e2cbf7ec673e53b [2019-11-22 14:16:24,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:16:24,150 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 14:16:24,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:16:24,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:16:24,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:16:24,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:24" (1/1) ... [2019-11-22 14:16:24,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43474d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:24, skipping insertion in model container [2019-11-22 14:16:24,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:24" (1/1) ... [2019-11-22 14:16:24,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:16:24,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:16:24,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:16:24,775 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 14:16:24,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fe45986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:24, skipping insertion in model container [2019-11-22 14:16:24,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:16:24,776 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-22 14:16:24,779 INFO L168 Benchmark]: Toolchain (without parser) took 628.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-22 14:16:24,780 INFO L168 Benchmark]: CDTParser took 0.30 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 14:16:24,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-22 14:16:24,783 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 625.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 26.0 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 14:16:26,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:16:26,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:16:26,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:16:26,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:16:26,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:16:26,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:16:26,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:16:26,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:16:26,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:16:26,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:16:26,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:16:26,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:16:26,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:16:26,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:16:26,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:16:26,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:16:26,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:16:26,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:16:26,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:16:26,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:16:26,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:16:26,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:16:26,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:16:26,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:16:26,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:16:26,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:16:26,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:16:26,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:16:26,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:16:26,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:16:26,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:16:26,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:16:26,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:16:26,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:16:26,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:16:26,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:16:26,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:16:26,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:16:26,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:16:26,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:16:26,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-22 14:16:26,675 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:16:26,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:16:26,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:16:26,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:16:26,678 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:16:26,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:16:26,678 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:16:26,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 14:16:26,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 14:16:26,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:16:26,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:16:26,680 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 14:16:26,680 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 14:16:26,680 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 14:16:26,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:16:26,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:16:26,681 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 14:16:26,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 14:16:26,682 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:16:26,682 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:16:26,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:16:26,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:16:26,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:16:26,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:16:26,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:16:26,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:16:26,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:16:26,684 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 14:16:26,684 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 14:16:26,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 14:16:26,685 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-22 14:16:26,987 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:16:27,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:16:27,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:16:27,013 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:16:27,014 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:16:27,016 INFO L428 ainManager$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 14:16:27,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94571f4bf/73d55fa43a514c7c82a099a9578801ca/FLAG22a1f9000 [2019-11-22 14:16:27,686 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:16:27,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 14:16:27,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94571f4bf/73d55fa43a514c7c82a099a9578801ca/FLAG22a1f9000 [2019-11-22 14:16:28,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94571f4bf/73d55fa43a514c7c82a099a9578801ca [2019-11-22 14:16:28,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:16:28,030 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 14:16:28,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:16:28,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:16:28,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:16:28,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1353300f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28, skipping insertion in model container [2019-11-22 14:16:28,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:16:28,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:16:28,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:16:28,639 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 14:16:28,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:16:28,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:16:28,740 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 14:16:28,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:16:28,887 INFO L208 MainTranslator]: Completed translation [2019-11-22 14:16:28,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28 WrapperNode [2019-11-22 14:16:28,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:16:28,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 14:16:28,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 14:16:28,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 14:16:28,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (1/1) ... [2019-11-22 14:16:28,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 14:16:28,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 14:16:28,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 14:16:28,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 14:16:29,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (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 14:16:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 14:16:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 14:16:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 14:16:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 14:16:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 14:16:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 14:16:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 14:16:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 14:16:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 14:16:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 14:16:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 14:16:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 14:16:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 14:16:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 14:16:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 14:16:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 14:16:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 14:16:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 14:16:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 14:16:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 14:16:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 14:16:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 14:16:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 14:16:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 14:16:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 14:16:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 14:16:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 14:16:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 14:16:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 14:16:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 14:16:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 14:16:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 14:16:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 14:16:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 14:16:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 14:16:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 14:16:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 14:16:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 14:16:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 14:16:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 14:16:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 14:16:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 14:16:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-22 14:16:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-22 14:16:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 14:16:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 14:16:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 14:16:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 14:16:29,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 14:16:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 14:16:29,079 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 14:16:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 14:16:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 14:16:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 14:16:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 14:16:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 14:16:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 14:16:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 14:16:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 14:16:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 14:16:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 14:16:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 14:16:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 14:16:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 14:16:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 14:16:29,082 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 14:16:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 14:16:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 14:16:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 14:16:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 14:16:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 14:16:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 14:16:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 14:16:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 14:16:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 14:16:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 14:16:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 14:16:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 14:16:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 14:16:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 14:16:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 14:16:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 14:16:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 14:16:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 14:16:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 14:16:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 14:16:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 14:16:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 14:16:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 14:16:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 14:16:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 14:16:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 14:16:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 14:16:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 14:16:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 14:16:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 14:16:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 14:16:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 14:16:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 14:16:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 14:16:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 14:16:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 14:16:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 14:16:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 14:16:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 14:16:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 14:16:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 14:16:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 14:16:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 14:16:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 14:16:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 14:16:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 14:16:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 14:16:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 14:16:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 14:16:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 14:16:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 14:16:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 14:16:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 14:16:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 14:16:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 14:16:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 14:16:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 14:16:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 14:16:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 14:16:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 14:16:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 14:16:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 14:16:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 14:16:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 14:16:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 14:16:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 14:16:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 14:16:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 14:16:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 14:16:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 14:16:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 14:16:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 14:16:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 14:16:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 14:16:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 14:16:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 14:16:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 14:16:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 14:16:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 14:16:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 14:16:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 14:16:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 14:16:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 14:16:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 14:16:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 14:16:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 14:16:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 14:16:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 14:16:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 14:16:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 14:16:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 14:16:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 14:16:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 14:16:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 14:16:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 14:16:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 14:16:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 14:16:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 14:16:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 14:16:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 14:16:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 14:16:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 14:16:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 14:16:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 14:16:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 14:16:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 14:16:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 14:16:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 14:16:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 14:16:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 14:16:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 14:16:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 14:16:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 14:16:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 14:16:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 14:16:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 14:16:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 14:16:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 14:16:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 14:16:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 14:16:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 14:16:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 14:16:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 14:16:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 14:16:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 14:16:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 14:16:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 14:16:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 14:16:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 14:16:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 14:16:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 14:16:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 14:16:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 14:16:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 14:16:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 14:16:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 14:16:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 14:16:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 14:16:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-22 14:16:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-22 14:16:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 14:16:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 14:16:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 14:16:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 14:16:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 14:16:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 14:16:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 14:16:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 14:16:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 14:16:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 14:16:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 14:16:29,771 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 14:16:30,169 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 14:16:30,688 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 14:16:30,690 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-22 14:16:30,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:30 BoogieIcfgContainer [2019-11-22 14:16:30,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 14:16:30,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 14:16:30,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 14:16:30,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 14:16:30,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:16:28" (1/3) ... [2019-11-22 14:16:30,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442b6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:30, skipping insertion in model container [2019-11-22 14:16:30,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:28" (2/3) ... [2019-11-22 14:16:30,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442b6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:30, skipping insertion in model container [2019-11-22 14:16:30,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:30" (3/3) ... [2019-11-22 14:16:30,702 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-22 14:16:30,712 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 14:16:30,720 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-22 14:16:30,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-22 14:16:30,752 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 14:16:30,753 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 14:16:30,753 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 14:16:30,753 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 14:16:30,753 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 14:16:30,753 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 14:16:30,753 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 14:16:30,753 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 14:16:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-22 14:16:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 14:16:30,782 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:30,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:16:30,784 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 14:16:30,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:30,789 INFO L82 PathProgramCache]: Analyzing trace with hash -67233649, now seen corresponding path program 1 times [2019-11-22 14:16:30,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:30,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1774586315] [2019-11-22 14:16:30,799 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 14:16:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:31,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:16:31,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:31,213 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 14:16:31,213 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:16:31,225 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:16:31,225 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:16:31,226 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 14:16:31,264 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 14:16:31,265 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:31,335 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 14:16:31,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1774586315] [2019-11-22 14:16:31,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:16:31,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 14:16:31,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7328193] [2019-11-22 14:16:31,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:16:31,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:31,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:16:31,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:16:31,363 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-22 14:16:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:31,645 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-22 14:16:31,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:16:31,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 14:16:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:31,661 INFO L225 Difference]: With dead ends: 87 [2019-11-22 14:16:31,662 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 14:16:31,664 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 14:16:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 14:16:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-22 14:16:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-22 14:16:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-22 14:16:31,718 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-22 14:16:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:31,719 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-22 14:16:31,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:16:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-22 14:16:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 14:16:31,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:31,721 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:16:31,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:31,927 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 14:16:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:31,928 INFO L82 PathProgramCache]: Analyzing trace with hash -67233648, now seen corresponding path program 1 times [2019-11-22 14:16:31,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:31,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1641446254] [2019-11-22 14:16:31,929 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 14:16:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:32,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 14:16:32,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:32,259 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 14:16:32,259 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:16:32,270 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:16:32,270 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:16:32,271 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 14:16:32,359 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 14:16:32,359 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:33,234 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 14:16:33,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1641446254] [2019-11-22 14:16:33,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:16:33,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-22 14:16:33,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863320329] [2019-11-22 14:16:33,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-22 14:16:33,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:33,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-22 14:16:33,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-22 14:16:33,239 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-22 14:16:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:34,501 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2019-11-22 14:16:34,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 14:16:34,502 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-22 14:16:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:34,505 INFO L225 Difference]: With dead ends: 93 [2019-11-22 14:16:34,505 INFO L226 Difference]: Without dead ends: 93 [2019-11-22 14:16:34,506 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-11-22 14:16:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-22 14:16:34,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2019-11-22 14:16:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-22 14:16:34,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-22 14:16:34,518 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-22 14:16:34,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:34,519 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-22 14:16:34,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-22 14:16:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-22 14:16:34,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 14:16:34,520 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:34,520 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:16:34,720 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:34,722 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 14:16:34,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:34,723 INFO L82 PathProgramCache]: Analyzing trace with hash 820270032, now seen corresponding path program 1 times [2019-11-22 14:16:34,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:34,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [681422483] [2019-11-22 14:16:34,727 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 14:16:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:34,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 14:16:34,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:34,988 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 14:16:34,988 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:35,035 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 14:16:35,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [681422483] [2019-11-22 14:16:35,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:16:35,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 14:16:35,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612910659] [2019-11-22 14:16:35,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:16:35,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:35,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:16:35,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:16:35,038 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-22 14:16:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:35,089 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-22 14:16:35,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:16:35,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 14:16:35,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:35,091 INFO L225 Difference]: With dead ends: 84 [2019-11-22 14:16:35,092 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 14:16:35,092 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 14:16:35,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 14:16:35,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-22 14:16:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-22 14:16:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-22 14:16:35,101 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-22 14:16:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:35,102 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-22 14:16:35,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:16:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-22 14:16:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 14:16:35,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:35,103 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 14:16:35,310 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:35,312 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 14:16:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:35,313 INFO L82 PathProgramCache]: Analyzing trace with hash -2083416263, now seen corresponding path program 1 times [2019-11-22 14:16:35,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:35,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1346974129] [2019-11-22 14:16:35,314 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 14:16:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:35,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:16:35,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:35,547 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 14:16:35,549 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:35,629 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 14:16:35,630 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1346974129] [2019-11-22 14:16:35,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:16:35,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 14:16:35,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112708150] [2019-11-22 14:16:35,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:16:35,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:35,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:16:35,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:16:35,632 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-22 14:16:35,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:35,688 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-22 14:16:35,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:16:35,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 14:16:35,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:35,691 INFO L225 Difference]: With dead ends: 84 [2019-11-22 14:16:35,691 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 14:16:35,691 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 14:16:35,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 14:16:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-22 14:16:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-22 14:16:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-22 14:16:35,700 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-22 14:16:35,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:35,700 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-22 14:16:35,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:16:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-22 14:16:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 14:16:35,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:35,702 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 14:16:35,914 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:35,915 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 14:16:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:35,915 INFO L82 PathProgramCache]: Analyzing trace with hash -340605928, now seen corresponding path program 1 times [2019-11-22 14:16:35,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:35,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [174760752] [2019-11-22 14:16:35,916 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 14:16:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:36,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 14:16:36,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:36,151 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 14:16:36,151 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:36,197 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 14:16:36,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [174760752] [2019-11-22 14:16:36,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:16:36,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 14:16:36,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786646985] [2019-11-22 14:16:36,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 14:16:36,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:36,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 14:16:36,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 14:16:36,200 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-22 14:16:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:36,351 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-22 14:16:36,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 14:16:36,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-22 14:16:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:36,353 INFO L225 Difference]: With dead ends: 120 [2019-11-22 14:16:36,354 INFO L226 Difference]: Without dead ends: 115 [2019-11-22 14:16:36,354 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 14:16:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-22 14:16:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-22 14:16:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-22 14:16:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-22 14:16:36,362 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-22 14:16:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:36,363 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-22 14:16:36,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 14:16:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-22 14:16:36,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 14:16:36,364 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:36,364 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 14:16:36,568 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:36,569 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 14:16:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:36,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1976385840, now seen corresponding path program 1 times [2019-11-22 14:16:36,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:36,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [977379241] [2019-11-22 14:16:36,571 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 14:16:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:36,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-22 14:16:36,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:36,881 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 14:16:36,881 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:16:36,886 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:16:36,887 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:16:36,887 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 14:16:37,014 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 14:16:37,014 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:38,083 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 14:16:38,084 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [977379241] [2019-11-22 14:16:38,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 14:16:38,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-22 14:16:38,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340223642] [2019-11-22 14:16:38,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 14:16:38,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:38,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 14:16:38,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-22 14:16:38,085 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 18 states. [2019-11-22 14:16:38,846 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-22 14:16:41,474 WARN L192 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 26 [2019-11-22 14:16:42,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:42,233 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-22 14:16:42,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-22 14:16:42,234 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-22 14:16:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:42,235 INFO L225 Difference]: With dead ends: 97 [2019-11-22 14:16:42,235 INFO L226 Difference]: Without dead ends: 97 [2019-11-22 14:16:42,235 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2019-11-22 14:16:42,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-22 14:16:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-22 14:16:42,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-22 14:16:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-22 14:16:42,243 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-22 14:16:42,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:42,243 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-22 14:16:42,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 14:16:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-22 14:16:42,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-22 14:16:42,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:42,245 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 14:16:42,452 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:42,453 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 14:16:42,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:42,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1887639459, now seen corresponding path program 1 times [2019-11-22 14:16:42,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:42,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [800036454] [2019-11-22 14:16:42,455 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 14:16:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:42,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 14:16:42,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:42,861 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 14:16:42,861 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:42,977 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 14:16:42,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [800036454] [2019-11-22 14:16:42,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 14:16:42,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-22 14:16:42,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629383465] [2019-11-22 14:16:42,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-22 14:16:42,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:42,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-22 14:16:42,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-22 14:16:42,979 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-22 14:16:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:43,388 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-22 14:16:43,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-22 14:16:43,391 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-22 14:16:43,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:43,393 INFO L225 Difference]: With dead ends: 98 [2019-11-22 14:16:43,393 INFO L226 Difference]: Without dead ends: 98 [2019-11-22 14:16:43,394 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 14:16:43,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-22 14:16:43,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-22 14:16:43,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-22 14:16:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-22 14:16:43,414 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-22 14:16:43,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:43,414 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-22 14:16:43,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-22 14:16:43,415 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-22 14:16:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-22 14:16:43,418 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:43,418 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 14:16:43,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:43,622 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 14:16:43,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:43,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1668351152, now seen corresponding path program 2 times [2019-11-22 14:16:43,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:43,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1229469291] [2019-11-22 14:16:43,625 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 14:16:43,955 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 14:16:43,955 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 14:16:43,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-22 14:16:43,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:43,984 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 14:16:43,985 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:16:43,993 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:16:43,993 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:16:43,994 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 14:16:44,278 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 14:16:44,278 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:46,574 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 14:16:46,575 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1229469291] [2019-11-22 14:16:46,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 14:16:46,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-22 14:16:46,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240073290] [2019-11-22 14:16:46,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-22 14:16:46,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:46,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-22 14:16:46,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-22 14:16:46,577 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 26 states. [2019-11-22 14:16:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:49,948 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-22 14:16:49,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-22 14:16:49,949 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-22 14:16:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:49,951 INFO L225 Difference]: With dead ends: 108 [2019-11-22 14:16:49,951 INFO L226 Difference]: Without dead ends: 108 [2019-11-22 14:16:49,953 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 14:16:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-22 14:16:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-22 14:16:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-22 14:16:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-22 14:16:49,960 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-22 14:16:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:49,961 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-22 14:16:49,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-22 14:16:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-22 14:16:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-22 14:16:49,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:49,964 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 14:16:50,165 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:16:50,166 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 14:16:50,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:50,166 INFO L82 PathProgramCache]: Analyzing trace with hash -67864624, now seen corresponding path program 3 times [2019-11-22 14:16:50,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:50,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1450370833] [2019-11-22 14:16:50,168 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 14:16:50,774 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-22 14:16:50,774 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 14:16:50,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-22 14:16:50,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:50,796 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 14:16:50,796 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:16:50,803 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:16:50,804 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:16:50,804 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 14:16:51,550 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 14:16:51,551 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:16:51,564 INFO L567 ElimStorePlain]: treesize reduction 18, result has 37.9 percent of original size [2019-11-22 14:16:51,564 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 14:16:51,565 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:36, output treesize:11 [2019-11-22 14:16:51,614 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 14:16:51,615 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:52,755 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-22 14:16:53,523 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2019-11-22 14:16:53,952 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-22 14:16:54,717 WARN L192 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2019-11-22 14:16:55,297 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-22 14:16:56,330 WARN L192 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-11-22 14:16:56,952 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-11-22 14:16:57,936 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-11-22 14:16:59,006 WARN L192 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-22 14:17:00,372 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-22 14:17:01,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:17:02,635 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 14:17:02,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1450370833] [2019-11-22 14:17:02,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 14:17:02,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 24] total 41 [2019-11-22 14:17:02,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351094716] [2019-11-22 14:17:02,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-11-22 14:17:02,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:17:02,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-11-22 14:17:02,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1374, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 14:17:02,638 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 41 states. [2019-11-22 14:17:03,420 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-22 14:17:04,005 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-11-22 14:17:07,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:17:07,662 INFO L93 Difference]: Finished difference Result 104 states and 110 transitions. [2019-11-22 14:17:07,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 14:17:07,664 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 46 [2019-11-22 14:17:07,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:17:07,665 INFO L225 Difference]: With dead ends: 104 [2019-11-22 14:17:07,665 INFO L226 Difference]: Without dead ends: 104 [2019-11-22 14:17:07,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 46 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=309, Invalid=1671, Unknown=0, NotChecked=0, Total=1980 [2019-11-22 14:17:07,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-11-22 14:17:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2019-11-22 14:17:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-22 14:17:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-22 14:17:07,674 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2019-11-22 14:17:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:17:07,678 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-22 14:17:07,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-11-22 14:17:07,679 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-22 14:17:07,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 14:17:07,683 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:17:07,683 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 14:17:07,884 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:17:07,885 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 14:17:07,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:17:07,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1492272183, now seen corresponding path program 2 times [2019-11-22 14:17:07,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:17:07,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [747404383] [2019-11-22 14:17:07,887 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 14:17:08,177 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 14:17:08,178 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 14:17:08,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:17:08,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:17:08,221 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 14:17:08,221 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:17:08,341 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 14:17:08,342 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [747404383] [2019-11-22 14:17:08,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:17:08,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 14:17:08,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29760968] [2019-11-22 14:17:08,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 14:17:08,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:17:08,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 14:17:08,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-22 14:17:08,343 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 7 states. [2019-11-22 14:17:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:17:08,448 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2019-11-22 14:17:08,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 14:17:08,449 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-22 14:17:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:17:08,450 INFO L225 Difference]: With dead ends: 133 [2019-11-22 14:17:08,450 INFO L226 Difference]: Without dead ends: 130 [2019-11-22 14:17:08,451 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 14:17:08,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-22 14:17:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 103. [2019-11-22 14:17:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-22 14:17:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2019-11-22 14:17:08,455 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 56 [2019-11-22 14:17:08,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:17:08,456 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2019-11-22 14:17:08,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 14:17:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2019-11-22 14:17:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 14:17:08,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:17:08,457 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 14:17:08,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:17:08,660 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 14:17:08,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:17:08,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917294, now seen corresponding path program 1 times [2019-11-22 14:17:08,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:17:08,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1848194910] [2019-11-22 14:17:08,662 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 14:17:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:17:09,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 14:17:09,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:17:09,086 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 14:17:09,087 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:09,089 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:09,089 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:17:09,089 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 14:17:09,174 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:09,175 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 14:17:09,176 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:09,194 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 14:17:09,195 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 14:17:09,195 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-22 14:17:09,228 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 14:17:09,228 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:17:11,504 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 14:17:11,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1848194910] [2019-11-22 14:17:11,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 14:17:11,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-22 14:17:11,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071908720] [2019-11-22 14:17:11,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 14:17:11,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:17:11,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 14:17:11,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-22 14:17:11,506 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand 8 states. [2019-11-22 14:17:24,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:17:24,524 INFO L93 Difference]: Finished difference Result 161 states and 179 transitions. [2019-11-22 14:17:24,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 14:17:24,524 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-22 14:17:24,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:17:24,526 INFO L225 Difference]: With dead ends: 161 [2019-11-22 14:17:24,526 INFO L226 Difference]: Without dead ends: 161 [2019-11-22 14:17:24,527 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-22 14:17:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-22 14:17:24,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 109. [2019-11-22 14:17:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-22 14:17:24,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2019-11-22 14:17:24,533 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 56 [2019-11-22 14:17:24,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:17:24,533 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2019-11-22 14:17:24,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 14:17:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2019-11-22 14:17:24,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 14:17:24,535 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:17:24,535 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 14:17:24,739 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:17:24,740 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 14:17:24,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:17:24,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917293, now seen corresponding path program 1 times [2019-11-22 14:17:24,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:17:24,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2089146843] [2019-11-22 14:17:24,743 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 14:17:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:17:25,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-22 14:17:25,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:17:25,240 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 14:17:25,240 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:25,250 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:25,254 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 14:17:25,254 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:25,263 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:25,264 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:17:25,264 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-22 14:17:27,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-22 14:17:27,457 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 14:17:27,457 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:27,475 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:27,488 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:27,488 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 14:17:27,489 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:27,509 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:27,510 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 14:17:27,510 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-22 14:17:27,549 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 14:17:27,550 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:17:27,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:17:28,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:17:28,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:17:28,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:17:36,951 WARN L192 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-22 14:17:36,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:17:43,551 WARN L192 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-11-22 14:17:44,801 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_257|], 2=[|v_#length_218|]} [2019-11-22 14:17:44,818 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 14:17:44,818 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:44,827 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:44,830 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 14:17:44,830 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:44,840 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:44,841 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 14:17:44,841 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-22 14:17:45,489 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-22 14:17:45,502 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 14:17:45,503 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:45,522 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:45,526 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 14:17:45,526 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 14:17:45,543 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:17:45,543 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 14:17:45,544 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-22 14:17:45,768 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 14:17:45,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2089146843] [2019-11-22 14:17:45,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 14:17:45,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-22 14:17:45,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460958377] [2019-11-22 14:17:45,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-22 14:17:45,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:17:45,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-22 14:17:45,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=405, Unknown=5, NotChecked=0, Total=462 [2019-11-22 14:17:45,770 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 22 states. [2019-11-22 14:18:08,965 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse1 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (exists ((|v_ldv_malloc_#t~malloc12.base_45| (_ BitVec 32)) (v_ldv_malloc_~size_53 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_45|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_45| v_ldv_malloc_~size_53) v_alloc_17_~array.base_BEFORE_CALL_4))))) (bvule .cse0 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (not (bvule (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse0)))))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (forall ((|v_ldv_malloc_#t~malloc12.base_46| (_ BitVec 32)) (v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse3 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (exists ((|v_ldv_malloc_#t~malloc12.base_45| (_ BitVec 32)) (v_ldv_malloc_~size_53 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_45|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_45| v_ldv_malloc_~size_53) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvule (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse3)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_46|) (_ bv0 1))) (bvule .cse3 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_46| ldv_malloc_~size) v_alloc_17_~array.base_BEFORE_CALL_4)))))) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (exists ((v_prenex_4 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_4)))) is different from false [2019-11-22 14:18:13,010 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse1 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (exists ((|v_ldv_malloc_#t~malloc12.base_45| (_ BitVec 32)) (v_ldv_malloc_~size_53 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_45|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_45| v_ldv_malloc_~size_53) v_alloc_17_~array.base_BEFORE_CALL_4))))) (bvule .cse0 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (not (bvule (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse0)))))) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (exists ((v_prenex_4 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_4)))) is different from false [2019-11-22 14:18:18,446 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-11-22 14:18:46,451 WARN L192 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 43 DAG size of output: 16 [2019-11-22 14:19:24,457 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-11-22 14:19:31,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:31,699 INFO L93 Difference]: Finished difference Result 249 states and 287 transitions. [2019-11-22 14:19:31,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-22 14:19:31,700 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-22 14:19:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:31,704 INFO L225 Difference]: With dead ends: 249 [2019-11-22 14:19:31,704 INFO L226 Difference]: Without dead ends: 249 [2019-11-22 14:19:31,705 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 45.6s TimeCoverageRelationStatistics Valid=116, Invalid=746, Unknown=16, NotChecked=114, Total=992 [2019-11-22 14:19:31,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-11-22 14:19:31,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 150. [2019-11-22 14:19:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-22 14:19:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2019-11-22 14:19:31,715 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 56 [2019-11-22 14:19:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:31,715 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2019-11-22 14:19:31,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-22 14:19:31,716 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2019-11-22 14:19:31,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 14:19:31,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:31,717 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 14:19:31,921 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:31,922 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 14:19:31,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:31,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1452186463, now seen corresponding path program 1 times [2019-11-22 14:19:31,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:31,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [316974854] [2019-11-22 14:19:31,924 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 14:19:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:32,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:19:32,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:32,226 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 14:19:32,227 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:32,281 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 14:19:32,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [316974854] [2019-11-22 14:19:32,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:32,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 14:19:32,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244634075] [2019-11-22 14:19:32,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:19:32,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:32,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:19:32,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:32,282 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand 5 states. [2019-11-22 14:19:32,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:32,336 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2019-11-22 14:19:32,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 14:19:32,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-22 14:19:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:32,338 INFO L225 Difference]: With dead ends: 163 [2019-11-22 14:19:32,338 INFO L226 Difference]: Without dead ends: 163 [2019-11-22 14:19:32,338 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 14:19:32,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-22 14:19:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 152. [2019-11-22 14:19:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-22 14:19:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2019-11-22 14:19:32,345 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 58 [2019-11-22 14:19:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:32,345 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2019-11-22 14:19:32,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:19:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2019-11-22 14:19:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 14:19:32,347 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:32,347 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 14:19:32,550 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:32,551 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 14:19:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:32,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1099970498, now seen corresponding path program 1 times [2019-11-22 14:19:32,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:32,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [296454696] [2019-11-22 14:19:32,553 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 14:19:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:32,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 14:19:32,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:32,978 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 14:19:32,978 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:33,033 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 14:19:33,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [296454696] [2019-11-22 14:19:33,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:33,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 14:19:33,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730061504] [2019-11-22 14:19:33,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 14:19:33,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:33,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 14:19:33,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 14:19:33,035 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand 6 states. [2019-11-22 14:19:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:33,154 INFO L93 Difference]: Finished difference Result 161 states and 192 transitions. [2019-11-22 14:19:33,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:19:33,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-22 14:19:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:33,157 INFO L225 Difference]: With dead ends: 161 [2019-11-22 14:19:33,157 INFO L226 Difference]: Without dead ends: 161 [2019-11-22 14:19:33,158 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 14:19:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-22 14:19:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 154. [2019-11-22 14:19:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-22 14:19:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2019-11-22 14:19:33,165 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 58 [2019-11-22 14:19:33,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:33,166 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2019-11-22 14:19:33,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 14:19:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2019-11-22 14:19:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 14:19:33,167 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:33,167 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 14:19:33,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:33,372 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 14:19:33,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:33,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1452868472, now seen corresponding path program 1 times [2019-11-22 14:19:33,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:33,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [761440850] [2019-11-22 14:19:33,374 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 14:19:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:33,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 14:19:33,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:33,799 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 14:19:33,799 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:19:33,802 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:19:33,803 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:19:33,803 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 14:19:33,857 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 14:19:33,858 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:34,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:34,163 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 14:19:34,170 INFO L168 Benchmark]: Toolchain (without parser) took 186139.56 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 335.0 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -78.5 MB). Peak memory consumption was 256.5 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:34,171 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:19:34,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:34,172 INFO L168 Benchmark]: Boogie Preprocessor took 109.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:34,172 INFO L168 Benchmark]: RCFGBuilder took 1694.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:34,173 INFO L168 Benchmark]: TraceAbstraction took 183473.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 186.6 MB). Free memory was 978.8 MB in the beginning and 1.0 GB in the end (delta: -57.4 MB). Peak memory consumption was 129.2 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:34,175 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 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 857.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.54 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1694.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.8 MB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 183473.74 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 186.6 MB). Free memory was 978.8 MB in the beginning and 1.0 GB in the end (delta: -57.4 MB). Peak memory consumption was 129.2 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...