./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3d056a1f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46ca4cc321f66643bb303146077f836b6b81d33d ......................................................................................................................... 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_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46ca4cc321f66643bb303146077f836b6b81d33d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- This is Ultimate 0.1.24-3d056a1 [2019-11-22 13:49:47,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:49:47,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:49:47,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:49:47,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:49:47,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:49:47,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:49:47,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:49:47,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:49:47,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:49:47,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:49:47,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:49:47,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:49:47,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:49:47,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:49:47,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:49:47,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:49:47,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:49:47,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:49:47,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:49:47,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:49:47,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:49:47,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:49:47,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:49:47,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:49:47,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:49:47,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:49:47,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:49:47,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:49:47,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:49:47,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:49:47,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:49:47,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:49:47,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:49:47,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:49:47,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:49:47,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:49:47,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:49:47,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:49:47,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:49:47,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:49:47,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-22 13:49:47,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:49:47,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:49:47,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:49:47,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:49:47,370 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:49:47,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:49:47,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:49:47,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:49:47,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:49:47,371 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:49:47,372 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:49:47,372 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:49:47,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:49:47,372 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:49:47,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:49:47,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:49:47,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:49:47,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:49:47,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:49:47,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:49:47,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:49:47,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:49:47,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 13:49:47,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 13:49:47,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-22 13:49:47,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:49:47,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:49:47,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:49:47,707 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:49:47,707 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:49:47,708 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 13:49:47,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b48e7610/14f2e91cc40d46f093a1dd9f18676086/FLAG59ea50293 [2019-11-22 13:49:48,325 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:49:48,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 13:49:48,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b48e7610/14f2e91cc40d46f093a1dd9f18676086/FLAG59ea50293 [2019-11-22 13:49:48,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b48e7610/14f2e91cc40d46f093a1dd9f18676086 [2019-11-22 13:49:48,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:49:48,573 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:49:48,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:48,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:49:48,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:49:48,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:48" (1/1) ... [2019-11-22 13:49:48,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da241a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48, skipping insertion in model container [2019-11-22 13:49:48,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:48" (1/1) ... [2019-11-22 13:49:48,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:49:48,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:49:49,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:49,136 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-22 13:49:49,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7017987b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:49, skipping insertion in model container [2019-11-22 13:49:49,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:49,138 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-22 13:49:49,142 INFO L168 Benchmark]: Toolchain (without parser) took 566.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:49,143 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:49:49,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-22 13:49:49,150 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 563.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 577]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-3d056a1 [2019-11-22 13:49:50,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:49:50,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:49:50,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:49:50,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:49:50,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:49:50,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:49:50,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:49:50,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:49:50,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:49:50,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:49:50,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:49:50,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:49:50,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:49:50,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:49:50,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:49:50,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:49:50,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:49:50,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:49:50,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:49:50,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:49:50,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:49:50,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:49:50,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:49:50,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:49:50,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:49:50,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:49:50,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:49:50,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:49:50,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:49:50,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:49:50,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:49:50,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:49:50,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:49:50,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:49:50,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:49:50,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:49:50,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:49:50,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:49:50,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:49:50,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:49:50,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 13:49:50,913 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:49:50,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:49:50,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:49:50,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:49:50,916 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:49:50,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:49:50,916 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:49:50,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:49:50,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:49:50,917 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:49:50,917 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:49:50,917 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:49:50,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:49:50,918 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:49:50,918 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 13:49:50,918 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 13:49:50,919 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:49:50,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:49:50,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:49:50,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:49:50,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:49:50,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:49:50,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:49:50,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:49:50,921 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 13:49:50,921 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 13:49:50,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:49:50,923 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-22 13:49:51,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:49:51,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:49:51,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:49:51,267 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:49:51,268 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:49:51,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 13:49:51,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671bb129d/7f3db04b0e43475bb45dba028635e5aa/FLAG3e43a3159 [2019-11-22 13:49:51,856 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:49:51,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 13:49:51,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671bb129d/7f3db04b0e43475bb45dba028635e5aa/FLAG3e43a3159 [2019-11-22 13:49:52,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671bb129d/7f3db04b0e43475bb45dba028635e5aa [2019-11-22 13:49:52,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:49:52,181 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:49:52,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:52,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:49:52,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:49:52,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:52" (1/1) ... [2019-11-22 13:49:52,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2588ed17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52, skipping insertion in model container [2019-11-22 13:49:52,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:52" (1/1) ... [2019-11-22 13:49:52,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:49:52,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:49:52,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:52,789 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 13:49:52,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:49:52,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:52,895 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 13:49:52,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:49:53,031 INFO L208 MainTranslator]: Completed translation [2019-11-22 13:49:53,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53 WrapperNode [2019-11-22 13:49:53,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:49:53,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 13:49:53,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 13:49:53,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 13:49:53,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... [2019-11-22 13:49:53,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... [2019-11-22 13:49:53,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... [2019-11-22 13:49:53,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... [2019-11-22 13:49:53,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... [2019-11-22 13:49:53,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... [2019-11-22 13:49:53,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... [2019-11-22 13:49:53,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 13:49:53,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 13:49:53,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 13:49:53,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 13:49:53,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:49:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 13:49:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 13:49:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:49:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:49:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 13:49:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 13:49:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 13:49:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 13:49:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 13:49:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 13:49:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 13:49:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 13:49:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 13:49:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:49:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 13:49:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 13:49:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 13:49:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 13:49:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 13:49:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 13:49:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 13:49:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 13:49:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 13:49:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 13:49:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 13:49:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 13:49:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 13:49:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 13:49:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 13:49:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 13:49:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 13:49:53,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 13:49:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 13:49:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 13:49:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 13:49:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 13:49:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 13:49:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 13:49:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 13:49:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 13:49:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 13:49:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 13:49:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 13:49:53,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 13:49:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 13:49:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 13:49:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 13:49:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 13:49:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 13:49:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 13:49:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 13:49:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 13:49:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 13:49:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 13:49:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 13:49:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 13:49:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 13:49:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 13:49:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 13:49:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 13:49:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 13:49:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 13:49:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 13:49:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 13:49:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 13:49:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 13:49:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 13:49:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 13:49:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 13:49:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 13:49:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 13:49:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 13:49:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 13:49:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 13:49:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 13:49:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 13:49:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 13:49:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 13:49:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 13:49:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 13:49:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 13:49:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 13:49:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 13:49:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 13:49:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 13:49:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 13:49:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 13:49:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 13:49:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 13:49:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 13:49:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 13:49:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 13:49:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 13:49:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 13:49:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 13:49:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 13:49:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 13:49:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 13:49:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 13:49:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 13:49:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 13:49:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 13:49:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 13:49:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 13:49:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 13:49:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 13:49:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 13:49:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 13:49:53,260 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 13:49:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 13:49:53,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 13:49:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 13:49:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 13:49:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 13:49:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 13:49:53,262 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 13:49:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 13:49:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 13:49:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 13:49:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 13:49:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 13:49:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 13:49:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 13:49:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 13:49:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 13:49:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 13:49:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 13:49:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 13:49:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 13:49:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 13:49:53,272 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 13:49:53,272 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 13:49:53,272 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 13:49:53,273 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 13:49:53,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 13:49:53,274 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 13:49:53,274 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 13:49:53,274 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 13:49:53,274 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 13:49:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 13:49:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 13:49:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 13:49:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 13:49:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 13:49:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 13:49:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 13:49:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 13:49:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 13:49:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 13:49:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 13:49:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 13:49:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 13:49:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 13:49:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 13:49:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 13:49:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 13:49:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 13:49:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 13:49:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 13:49:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 13:49:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 13:49:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 13:49:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 13:49:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 13:49:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 13:49:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:49:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 13:49:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 13:49:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 13:49:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 13:49:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 13:49:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 13:49:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 13:49:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 13:49:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 13:49:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 13:49:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 13:49:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 13:49:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 13:49:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 13:49:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 13:49:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 13:49:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 13:49:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 13:49:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 13:49:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 13:49:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 13:49:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:49:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 13:49:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 13:49:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 13:49:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 13:49:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 13:49:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 13:49:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 13:49:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 13:49:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 13:49:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 13:49:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 13:49:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 13:49:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 13:49:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 13:49:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 13:49:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 13:49:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 13:49:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 13:49:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 13:49:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 13:49:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:49:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 13:49:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 13:49:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 13:49:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 13:49:54,054 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:49:54,462 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:49:54,850 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 13:49:54,850 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 13:49:54,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:54 BoogieIcfgContainer [2019-11-22 13:49:54,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 13:49:54,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 13:49:54,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 13:49:54,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 13:49:54,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:49:52" (1/3) ... [2019-11-22 13:49:54,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1816f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:54, skipping insertion in model container [2019-11-22 13:49:54,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:53" (2/3) ... [2019-11-22 13:49:54,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1816f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:54, skipping insertion in model container [2019-11-22 13:49:54,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:54" (3/3) ... [2019-11-22 13:49:54,864 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-22 13:49:54,875 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 13:49:54,887 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-22 13:49:54,899 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-22 13:49:54,926 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 13:49:54,926 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 13:49:54,927 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 13:49:54,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 13:49:54,927 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 13:49:54,928 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 13:49:54,928 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 13:49:54,928 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 13:49:54,954 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-22 13:49:54,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 13:49:54,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:54,970 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:54,973 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:54,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:54,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2019-11-22 13:49:54,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:54,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1419757288] [2019-11-22 13:49:54,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:55,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:55,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:55,339 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:55,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1419757288] [2019-11-22 13:49:55,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:55,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 13:49:55,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873843803] [2019-11-22 13:49:55,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:55,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:55,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:55,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:55,490 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-22 13:49:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:55,582 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-22 13:49:55,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:55,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 13:49:55,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:55,597 INFO L225 Difference]: With dead ends: 53 [2019-11-22 13:49:55,600 INFO L226 Difference]: Without dead ends: 50 [2019-11-22 13:49:55,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-22 13:49:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-22 13:49:55,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 13:49:55,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-22 13:49:55,679 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-22 13:49:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:55,681 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-22 13:49:55,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:55,681 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-22 13:49:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 13:49:55,684 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:55,684 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:55,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:55,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:55,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:55,889 INFO L82 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2019-11-22 13:49:55,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:55,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [272185168] [2019-11-22 13:49:55,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:56,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:49:56,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:56,161 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:56,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [272185168] [2019-11-22 13:49:56,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:56,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 13:49:56,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368402911] [2019-11-22 13:49:56,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 13:49:56,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:56,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 13:49:56,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:49:56,210 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-22 13:49:56,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:56,277 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-22 13:49:56,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 13:49:56,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-22 13:49:56,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:56,279 INFO L225 Difference]: With dead ends: 46 [2019-11-22 13:49:56,279 INFO L226 Difference]: Without dead ends: 43 [2019-11-22 13:49:56,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:49:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-22 13:49:56,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-22 13:49:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-22 13:49:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-22 13:49:56,292 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-22 13:49:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:56,292 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-22 13:49:56,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 13:49:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-22 13:49:56,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-22 13:49:56,295 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:56,295 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:56,497 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:56,498 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:56,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:56,499 INFO L82 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2019-11-22 13:49:56,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:56,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1161290620] [2019-11-22 13:49:56,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:56,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:56,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:56,816 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:56,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1161290620] [2019-11-22 13:49:56,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:56,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 13:49:56,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120923636] [2019-11-22 13:49:56,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:56,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:56,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:56,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:56,861 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-22 13:49:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:56,875 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-22 13:49:56,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:56,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-22 13:49:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:56,877 INFO L225 Difference]: With dead ends: 30 [2019-11-22 13:49:56,877 INFO L226 Difference]: Without dead ends: 30 [2019-11-22 13:49:56,877 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:56,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-22 13:49:56,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-22 13:49:56,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-22 13:49:56,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-22 13:49:56,887 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-22 13:49:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:56,888 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-22 13:49:56,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:56,888 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-22 13:49:56,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 13:49:56,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:56,890 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:57,092 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:57,095 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:57,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2019-11-22 13:49:57,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:57,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1286968274] [2019-11-22 13:49:57,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:57,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:57,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:57,366 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:57,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1286968274] [2019-11-22 13:49:57,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:57,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 13:49:57,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101282269] [2019-11-22 13:49:57,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:57,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:57,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:57,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:57,424 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 5 states. [2019-11-22 13:49:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:57,511 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-22 13:49:57,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:57,512 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-22 13:49:57,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:57,513 INFO L225 Difference]: With dead ends: 35 [2019-11-22 13:49:57,513 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 13:49:57,516 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 13:49:57,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-22 13:49:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 13:49:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-22 13:49:57,526 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 21 [2019-11-22 13:49:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:57,527 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-22 13:49:57,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-22 13:49:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 13:49:57,529 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:57,529 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:57,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:57,733 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:57,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1384579246, now seen corresponding path program 1 times [2019-11-22 13:49:57,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:57,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1975240614] [2019-11-22 13:49:57,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:57,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:49:57,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:49:58,057 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:58,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1975240614] [2019-11-22 13:49:58,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 13:49:58,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-11-22 13:49:58,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153607694] [2019-11-22 13:49:58,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 13:49:58,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:58,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 13:49:58,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:49:58,162 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2019-11-22 13:49:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:58,309 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2019-11-22 13:49:58,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 13:49:58,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-22 13:49:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:58,312 INFO L225 Difference]: With dead ends: 66 [2019-11-22 13:49:58,312 INFO L226 Difference]: Without dead ends: 66 [2019-11-22 13:49:58,313 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:49:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-22 13:49:58,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2019-11-22 13:49:58,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-22 13:49:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2019-11-22 13:49:58,320 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 21 [2019-11-22 13:49:58,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:58,320 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2019-11-22 13:49:58,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 13:49:58,320 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2019-11-22 13:49:58,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 13:49:58,321 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:58,321 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:58,537 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:58,538 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:58,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:58,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1091176239, now seen corresponding path program 1 times [2019-11-22 13:49:58,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:58,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [200698111] [2019-11-22 13:49:58,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:58,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:58,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:58,830 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:58,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [200698111] [2019-11-22 13:49:58,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:58,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-22 13:49:58,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659316072] [2019-11-22 13:49:58,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 13:49:58,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:58,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 13:49:58,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-22 13:49:58,907 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 9 states. [2019-11-22 13:49:59,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:59,100 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-11-22 13:49:59,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 13:49:59,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-22 13:49:59,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:59,102 INFO L225 Difference]: With dead ends: 54 [2019-11-22 13:49:59,102 INFO L226 Difference]: Without dead ends: 54 [2019-11-22 13:49:59,102 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:49:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-22 13:49:59,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2019-11-22 13:49:59,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 13:49:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 13:49:59,113 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 21 [2019-11-22 13:49:59,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:59,114 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 13:49:59,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 13:49:59,115 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 13:49:59,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 13:49:59,116 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:59,116 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:59,320 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:59,320 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:59,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:59,321 INFO L82 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2019-11-22 13:49:59,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:59,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1019442622] [2019-11-22 13:49:59,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:49:59,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:49:59,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:49:59,593 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 13:49:59,593 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:49:59,597 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:49:59,598 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:49:59,598 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 13:49:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:59,626 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:49:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:49:59,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1019442622] [2019-11-22 13:49:59,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:49:59,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 13:49:59,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456403826] [2019-11-22 13:49:59,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:49:59,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:49:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:49:59,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:59,674 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-22 13:49:59,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:49:59,730 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2019-11-22 13:49:59,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:49:59,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-22 13:49:59,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:49:59,731 INFO L225 Difference]: With dead ends: 41 [2019-11-22 13:49:59,732 INFO L226 Difference]: Without dead ends: 41 [2019-11-22 13:49:59,732 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:49:59,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-22 13:49:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2019-11-22 13:49:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-22 13:49:59,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-11-22 13:49:59,737 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 22 [2019-11-22 13:49:59,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:49:59,738 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-11-22 13:49:59,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:49:59,738 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2019-11-22 13:49:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-22 13:49:59,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:49:59,739 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:49:59,939 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:49:59,941 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:49:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:49:59,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2019-11-22 13:49:59,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:49:59,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1854883981] [2019-11-22 13:49:59,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:50:00,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:50:00,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:50:00,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:50:00,208 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:50:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:50:00,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1854883981] [2019-11-22 13:50:00,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:50:00,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-22 13:50:00,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961735861] [2019-11-22 13:50:00,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:50:00,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:50:00,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:50:00,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:50:00,252 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2019-11-22 13:50:00,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:50:00,262 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-11-22 13:50:00,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:50:00,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-22 13:50:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:50:00,264 INFO L225 Difference]: With dead ends: 36 [2019-11-22 13:50:00,264 INFO L226 Difference]: Without dead ends: 36 [2019-11-22 13:50:00,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:50:00,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-22 13:50:00,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-22 13:50:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-22 13:50:00,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-11-22 13:50:00,273 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 23 [2019-11-22 13:50:00,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:50:00,273 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-11-22 13:50:00,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:50:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-11-22 13:50:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-22 13:50:00,274 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:50:00,275 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:50:00,477 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:00,483 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:50:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:50:00,484 INFO L82 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2019-11-22 13:50:00,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:50:00,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [865187474] [2019-11-22 13:50:00,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:50:00,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 13:50:00,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:50:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:50:00,804 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:50:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:50:00,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [865187474] [2019-11-22 13:50:00,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:50:00,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-11-22 13:50:00,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896764463] [2019-11-22 13:50:00,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 13:50:00,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:50:00,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 13:50:00,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-22 13:50:00,856 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2019-11-22 13:50:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:50:00,967 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-11-22 13:50:00,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 13:50:00,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-22 13:50:00,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:50:00,970 INFO L225 Difference]: With dead ends: 35 [2019-11-22 13:50:00,970 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 13:50:00,970 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-22 13:50:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 13:50:00,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-22 13:50:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 13:50:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-11-22 13:50:00,976 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-11-22 13:50:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:50:00,977 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-11-22 13:50:00,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 13:50:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-11-22 13:50:00,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 13:50:00,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:50:00,978 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:50:01,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:01,182 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:50:01,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:50:01,187 INFO L82 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2019-11-22 13:50:01,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:50:01,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1215221495] [2019-11-22 13:50:01,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:50:01,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 13:50:01,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:50:01,495 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 13:50:01,495 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:50:01,497 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:50:01,497 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:50:01,497 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 13:50:01,579 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:50:01,580 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 19 treesize of output 41 [2019-11-22 13:50:01,581 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:50:01,602 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 13:50:01,603 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:50:01,603 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-22 13:50:01,652 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-22 13:50:01,653 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:50:01,665 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-22 13:50:01,666 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 13:50:01,666 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-22 13:50:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:50:01,693 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:50:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:50:01,888 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1215221495] [2019-11-22 13:50:01,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 13:50:01,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-22 13:50:01,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871721823] [2019-11-22 13:50:01,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 13:50:01,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:50:01,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 13:50:01,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-22 13:50:01,890 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2019-11-22 13:50:04,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:50:04,089 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-22 13:50:04,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 13:50:04,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-22 13:50:04,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:50:04,091 INFO L225 Difference]: With dead ends: 50 [2019-11-22 13:50:04,091 INFO L226 Difference]: Without dead ends: 50 [2019-11-22 13:50:04,091 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-22 13:50:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-22 13:50:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-11-22 13:50:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 13:50:04,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 13:50:04,096 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-22 13:50:04,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:50:04,096 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 13:50:04,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 13:50:04,096 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 13:50:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 13:50:04,097 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:50:04,097 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:50:04,300 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:04,300 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:50:04,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:50:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2019-11-22 13:50:04,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:50:04,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1587674370] [2019-11-22 13:50:04,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:50:04,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-22 13:50:04,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:50:04,548 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 13:50:04,548 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:50:04,551 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:50:04,552 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:50:04,552 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-22 13:50:04,662 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-22 13:50:04,663 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:50:04,673 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-22 13:50:04,673 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:50:04,674 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-22 13:50:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:50:04,691 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:50:04,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:50:04,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1587674370] [2019-11-22 13:50:04,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:50:04,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-22 13:50:04,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707175032] [2019-11-22 13:50:04,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-22 13:50:04,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:50:04,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-22 13:50:04,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-22 13:50:04,905 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2019-11-22 13:50:05,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:50:05,571 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-11-22 13:50:05,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-22 13:50:05,572 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-22 13:50:05,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:50:05,573 INFO L225 Difference]: With dead ends: 53 [2019-11-22 13:50:05,573 INFO L226 Difference]: Without dead ends: 53 [2019-11-22 13:50:05,573 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-22 13:50:05,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-22 13:50:05,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2019-11-22 13:50:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 13:50:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 13:50:05,578 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-22 13:50:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:50:05,578 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 13:50:05,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-22 13:50:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 13:50:05,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 13:50:05,579 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:50:05,580 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:50:05,784 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:05,785 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:50:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:50:05,785 INFO L82 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2019-11-22 13:50:05,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:50:05,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2089119510] [2019-11-22 13:50:05,787 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 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:06,038 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 13:50:06,038 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 13:50:06,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-22 13:50:06,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:50:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:50:06,057 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:50:06,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 13:50:06,097 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2089119510] [2019-11-22 13:50:06,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 13:50:06,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-22 13:50:06,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729367000] [2019-11-22 13:50:06,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 13:50:06,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:50:06,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 13:50:06,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:50:06,099 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-22 13:50:06,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:50:06,124 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-11-22 13:50:06,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:50:06,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-22 13:50:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:50:06,128 INFO L225 Difference]: With dead ends: 43 [2019-11-22 13:50:06,128 INFO L226 Difference]: Without dead ends: 43 [2019-11-22 13:50:06,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 13:50:06,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-22 13:50:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2019-11-22 13:50:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-22 13:50:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-11-22 13:50:06,138 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2019-11-22 13:50:06,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:50:06,138 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-11-22 13:50:06,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 13:50:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-11-22 13:50:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-22 13:50:06,139 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:50:06,139 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:50:06,340 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:06,340 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:50:06,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:50:06,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2019-11-22 13:50:06,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:50:06,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1932205508] [2019-11-22 13:50:06,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:50:06,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-22 13:50:06,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:50:06,637 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:50:06,638 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 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-22 13:50:06,639 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:50:06,658 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-22 13:50:06,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:50:06,663 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 13:50:06,663 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-22 13:50:06,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:50:06,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:50:06,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:50:06,709 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:50:09,194 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:50:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-22 13:50:09,324 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:50:09,540 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-22 13:50:09,849 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:50:09,850 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 13:50:09,855 INFO L168 Benchmark]: Toolchain (without parser) took 17674.16 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 302.5 MB). Free memory was 946.9 MB in the beginning and 890.3 MB in the end (delta: 56.7 MB). Peak memory consumption was 359.2 MB. Max. memory is 11.5 GB. [2019-11-22 13:50:09,855 INFO L168 Benchmark]: CDTParser took 1.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:50:09,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 849.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:50:09,856 INFO L168 Benchmark]: Boogie Preprocessor took 102.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:50:09,857 INFO L168 Benchmark]: RCFGBuilder took 1717.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.7 MB in the end (delta: 111.1 MB). Peak memory consumption was 111.1 MB. Max. memory is 11.5 GB. [2019-11-22 13:50:09,860 INFO L168 Benchmark]: TraceAbstraction took 14998.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 977.7 MB in the beginning and 890.3 MB in the end (delta: 87.5 MB). Peak memory consumption was 256.3 MB. Max. memory is 11.5 GB. [2019-11-22 13:50:09,863 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.58 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 849.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 102.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1717.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.7 MB in the end (delta: 111.1 MB). Peak memory consumption was 111.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14998.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 977.7 MB in the beginning and 890.3 MB in the end (delta: 87.5 MB). Peak memory consumption was 256.3 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...