./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 5758efa3 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 0775aa74e42740d69127a88680deb3bae2149559 ......................................................................................................................... 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 0775aa74e42740d69127a88680deb3bae2149559 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-5758efa [2019-11-26 20:42:07,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 20:42:07,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 20:42:07,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 20:42:07,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 20:42:07,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 20:42:07,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 20:42:07,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 20:42:07,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 20:42:07,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 20:42:07,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 20:42:07,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 20:42:07,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 20:42:07,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 20:42:07,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 20:42:07,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 20:42:07,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 20:42:07,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 20:42:07,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 20:42:07,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 20:42:07,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 20:42:07,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 20:42:07,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 20:42:07,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 20:42:07,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 20:42:07,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 20:42:07,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 20:42:07,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 20:42:07,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 20:42:07,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 20:42:07,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 20:42:07,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 20:42:07,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 20:42:07,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 20:42:07,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 20:42:07,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 20:42:07,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 20:42:07,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 20:42:07,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 20:42:07,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 20:42:07,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 20:42:07,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-26 20:42:07,363 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 20:42:07,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 20:42:07,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 20:42:07,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 20:42:07,367 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 20:42:07,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 20:42:07,368 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 20:42:07,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 20:42:07,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 20:42:07,368 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 20:42:07,371 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 20:42:07,371 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 20:42:07,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 20:42:07,371 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 20:42:07,372 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 20:42:07,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 20:42:07,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 20:42:07,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 20:42:07,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 20:42:07,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 20:42:07,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 20:42:07,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 20:42:07,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 20:42:07,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 20:42:07,374 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 -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-11-26 20:42:07,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 20:42:07,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 20:42:07,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 20:42:07,677 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 20:42:07,677 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 20:42:07,678 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-26 20:42:07,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f95d0b0d/0d7aa355ecf047b88453500307a1e6a1/FLAGf8f3d7f03 [2019-11-26 20:42:08,307 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 20:42:08,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-26 20:42:08,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f95d0b0d/0d7aa355ecf047b88453500307a1e6a1/FLAGf8f3d7f03 [2019-11-26 20:42:08,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f95d0b0d/0d7aa355ecf047b88453500307a1e6a1 [2019-11-26 20:42:08,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 20:42:08,588 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-26 20:42:08,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 20:42:08,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 20:42:08,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 20:42:08,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:42:08" (1/1) ... [2019-11-26 20:42:08,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6d29e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:08, skipping insertion in model container [2019-11-26 20:42:08,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:42:08" (1/1) ... [2019-11-26 20:42:08,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 20:42:08,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 20:42:09,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 20:42:09,142 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) [2019-11-26 20:42:09,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62341fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:09, skipping insertion in model container [2019-11-26 20:42:09,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 20:42:09,144 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-26 20:42:09,147 INFO L168 Benchmark]: Toolchain (without parser) took 557.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-26 20:42:09,148 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-26 20:42:09,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-26 20:42:09,151 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 553.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-5758efa [2019-11-26 20:42:10,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 20:42:10,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 20:42:10,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 20:42:10,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 20:42:10,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 20:42:10,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 20:42:10,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 20:42:10,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 20:42:10,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 20:42:10,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 20:42:10,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 20:42:10,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 20:42:10,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 20:42:10,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 20:42:10,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 20:42:10,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 20:42:10,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 20:42:10,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 20:42:10,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 20:42:10,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 20:42:10,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 20:42:10,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 20:42:10,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 20:42:10,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 20:42:10,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 20:42:10,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 20:42:10,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 20:42:10,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 20:42:10,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 20:42:10,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 20:42:10,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 20:42:10,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 20:42:10,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 20:42:10,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 20:42:10,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 20:42:10,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 20:42:10,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 20:42:10,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 20:42:10,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 20:42:10,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 20:42:10,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-26 20:42:10,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 20:42:10,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 20:42:10,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 20:42:10,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 20:42:10,977 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 20:42:10,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 20:42:10,977 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 20:42:10,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 20:42:10,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 20:42:10,980 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 20:42:10,981 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 20:42:10,982 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 20:42:10,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 20:42:10,983 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 20:42:10,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 20:42:10,983 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 20:42:10,983 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 20:42:10,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 20:42:10,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 20:42:10,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 20:42:10,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 20:42:10,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 20:42:10,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 20:42:10,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 20:42:10,986 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 20:42:10,986 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 20:42:10,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 20:42:10,987 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 -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-11-26 20:42:11,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 20:42:11,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 20:42:11,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 20:42:11,312 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 20:42:11,312 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 20:42:11,313 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-26 20:42:11,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e8a62f1/560d9d3125524dcdbf64cc7c7686672b/FLAG33c97f544 [2019-11-26 20:42:11,935 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 20:42:11,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-26 20:42:11,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e8a62f1/560d9d3125524dcdbf64cc7c7686672b/FLAG33c97f544 [2019-11-26 20:42:12,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e8a62f1/560d9d3125524dcdbf64cc7c7686672b [2019-11-26 20:42:12,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 20:42:12,211 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-26 20:42:12,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 20:42:12,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 20:42:12,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 20:42:12,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:42:12" (1/1) ... [2019-11-26 20:42:12,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245d122c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:12, skipping insertion in model container [2019-11-26 20:42:12,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 08:42:12" (1/1) ... [2019-11-26 20:42:12,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 20:42:12,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 20:42:12,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 20:42:12,839 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-26 20:42:12,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 20:42:12,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 20:42:12,909 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 20:42:12,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 20:42:13,078 INFO L208 MainTranslator]: Completed translation [2019-11-26 20:42:13,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13 WrapperNode [2019-11-26 20:42:13,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 20:42:13,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 20:42:13,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 20:42:13,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 20:42:13,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (1/1) ... [2019-11-26 20:42:13,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (1/1) ... [2019-11-26 20:42:13,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (1/1) ... [2019-11-26 20:42:13,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (1/1) ... [2019-11-26 20:42:13,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (1/1) ... [2019-11-26 20:42:13,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (1/1) ... [2019-11-26 20:42:13,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (1/1) ... [2019-11-26 20:42:13,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 20:42:13,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 20:42:13,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 20:42:13,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 20:42:13,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (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 [2019-11-26 20:42:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-26 20:42:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 20:42:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-26 20:42:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-26 20:42:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-26 20:42:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-26 20:42:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-26 20:42:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-26 20:42:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-26 20:42:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-26 20:42:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-26 20:42:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-26 20:42:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-26 20:42:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-26 20:42:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-26 20:42:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-26 20:42:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-26 20:42:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-26 20:42:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-26 20:42:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-26 20:42:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-26 20:42:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-26 20:42:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-26 20:42:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-26 20:42:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-26 20:42:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-26 20:42:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-26 20:42:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-26 20:42:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-26 20:42:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-26 20:42:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-26 20:42:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-26 20:42:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-26 20:42:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-26 20:42:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-26 20:42:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-26 20:42:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-26 20:42:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-26 20:42:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-26 20:42:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-26 20:42:13,257 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-26 20:42:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-26 20:42:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-26 20:42:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-26 20:42:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-26 20:42:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-26 20:42:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-26 20:42:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-26 20:42:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-26 20:42:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-26 20:42:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-26 20:42:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-26 20:42:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-26 20:42:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-26 20:42:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-26 20:42:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-26 20:42:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-26 20:42:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-26 20:42:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-26 20:42:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-26 20:42:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-26 20:42:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-26 20:42:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-26 20:42:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-26 20:42:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-26 20:42:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-26 20:42:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-26 20:42:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-26 20:42:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-26 20:42:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-26 20:42:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-26 20:42:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-26 20:42:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-26 20:42:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-26 20:42:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-26 20:42:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-26 20:42:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-26 20:42:13,270 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-26 20:42:13,271 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-26 20:42:13,272 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-26 20:42:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-26 20:42:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-26 20:42:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-26 20:42:13,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-26 20:42:13,274 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-26 20:42:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-26 20:42:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-26 20:42:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-26 20:42:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-26 20:42:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-26 20:42:13,278 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-26 20:42:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-26 20:42:13,279 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-26 20:42:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-26 20:42:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-26 20:42:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-26 20:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-26 20:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-26 20:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-26 20:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-26 20:42:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-26 20:42:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-26 20:42:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-26 20:42:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-26 20:42:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-26 20:42:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-26 20:42:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-26 20:42:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-26 20:42:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-26 20:42:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-26 20:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 20:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-26 20:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-26 20:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-26 20:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 20:42:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-26 20:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-26 20:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-26 20:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 20:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-26 20:42:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-26 20:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-26 20:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-26 20:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-26 20:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-26 20:42:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 20:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-26 20:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-26 20:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-26 20:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-26 20:42:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-26 20:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 20:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 20:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-26 20:42:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-26 20:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-26 20:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-26 20:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-26 20:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-26 20:42:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-26 20:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-26 20:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-26 20:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-26 20:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-26 20:42:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-26 20:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-26 20:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-26 20:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-26 20:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-26 20:42:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-26 20:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-26 20:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-26 20:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-26 20:42:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 20:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 20:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 20:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-26 20:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-26 20:42:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-26 20:42:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-26 20:42:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-26 20:42:13,957 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-26 20:42:14,370 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-26 20:42:14,703 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 20:42:14,704 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-26 20:42:14,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 08:42:14 BoogieIcfgContainer [2019-11-26 20:42:14,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 20:42:14,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 20:42:14,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 20:42:14,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 20:42:14,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 08:42:12" (1/3) ... [2019-11-26 20:42:14,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b894910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 08:42:14, skipping insertion in model container [2019-11-26 20:42:14,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 08:42:13" (2/3) ... [2019-11-26 20:42:14,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b894910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 08:42:14, skipping insertion in model container [2019-11-26 20:42:14,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 08:42:14" (3/3) ... [2019-11-26 20:42:14,715 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-26 20:42:14,725 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 20:42:14,733 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-26 20:42:14,747 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-26 20:42:14,768 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 20:42:14,768 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-26 20:42:14,768 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 20:42:14,769 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 20:42:14,769 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 20:42:14,769 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 20:42:14,769 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 20:42:14,770 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 20:42:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-26 20:42:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 20:42:14,799 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:14,800 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:42:14,801 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]=== [2019-11-26 20:42:14,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:14,807 INFO L82 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2019-11-26 20:42:14,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:14,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66275211] [2019-11-26 20:42:14,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:15,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 20:42:15,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:15,120 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:15,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:15,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66275211] [2019-11-26 20:42:15,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:42:15,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-26 20:42:15,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639056620] [2019-11-26 20:42:15,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 20:42:15,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:15,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 20:42:15,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 20:42:15,239 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-26 20:42:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:15,328 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-26 20:42:15,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 20:42:15,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-26 20:42:15,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:15,344 INFO L225 Difference]: With dead ends: 53 [2019-11-26 20:42:15,344 INFO L226 Difference]: Without dead ends: 50 [2019-11-26 20:42:15,353 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 [2019-11-26 20:42:15,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-26 20:42:15,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-26 20:42:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-26 20:42:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-26 20:42:15,432 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-26 20:42:15,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:15,432 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-26 20:42:15,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 20:42:15,433 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-26 20:42:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 20:42:15,435 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:15,435 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:42:15,655 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 20:42:15,656 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]=== [2019-11-26 20:42:15,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:15,656 INFO L82 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2019-11-26 20:42:15,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:15,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64844762] [2019-11-26 20:42:15,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:15,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 20:42:15,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:15,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:15,797 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:15,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64844762] [2019-11-26 20:42:15,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:42:15,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 20:42:15,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999343458] [2019-11-26 20:42:15,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 20:42:15,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:15,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 20:42:15,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 20:42:15,868 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-26 20:42:15,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:15,933 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-26 20:42:15,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 20:42:15,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-26 20:42:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:15,935 INFO L225 Difference]: With dead ends: 46 [2019-11-26 20:42:15,935 INFO L226 Difference]: Without dead ends: 43 [2019-11-26 20:42:15,937 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 [2019-11-26 20:42:15,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-26 20:42:15,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-26 20:42:15,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-26 20:42:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-26 20:42:15,948 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-26 20:42:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:15,948 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-26 20:42:15,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 20:42:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-26 20:42:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-26 20:42:15,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:15,951 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:42:16,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 20:42:16,163 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]=== [2019-11-26 20:42:16,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:16,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2019-11-26 20:42:16,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:16,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712800386] [2019-11-26 20:42:16,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:16,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 20:42:16,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:16,364 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:16,438 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712800386] [2019-11-26 20:42:16,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:42:16,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-26 20:42:16,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160729925] [2019-11-26 20:42:16,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 20:42:16,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:16,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 20:42:16,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 20:42:16,440 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-26 20:42:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:16,453 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-26 20:42:16,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 20:42:16,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-26 20:42:16,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:16,455 INFO L225 Difference]: With dead ends: 30 [2019-11-26 20:42:16,455 INFO L226 Difference]: Without dead ends: 30 [2019-11-26 20:42:16,456 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 [2019-11-26 20:42:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-26 20:42:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-26 20:42:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-26 20:42:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-26 20:42:16,461 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-26 20:42:16,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:16,461 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-26 20:42:16,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 20:42:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-26 20:42:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-26 20:42:16,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:16,462 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:42:16,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 20:42:16,663 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]=== [2019-11-26 20:42:16,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2019-11-26 20:42:16,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:16,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843795054] [2019-11-26 20:42:16,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:16,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 20:42:16,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:16,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:16,935 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:17,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843795054] [2019-11-26 20:42:17,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:42:17,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2019-11-26 20:42:17,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580927495] [2019-11-26 20:42:17,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 20:42:17,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:17,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 20:42:17,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-26 20:42:17,077 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 10 states. [2019-11-26 20:42:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:17,388 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-26 20:42:17,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-26 20:42:17,389 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2019-11-26 20:42:17,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:17,390 INFO L225 Difference]: With dead ends: 50 [2019-11-26 20:42:17,391 INFO L226 Difference]: Without dead ends: 50 [2019-11-26 20:42:17,391 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-26 20:42:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-26 20:42:17,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 29. [2019-11-26 20:42:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 20:42:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-26 20:42:17,397 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-26 20:42:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:17,397 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-26 20:42:17,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 20:42:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-26 20:42:17,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 20:42:17,399 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:17,399 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 20:42:17,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-26 20:42:17,611 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]=== [2019-11-26 20:42:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:17,611 INFO L82 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2019-11-26 20:42:17,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:17,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578570755] [2019-11-26 20:42:17,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:17,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 20:42:17,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:17,788 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 [2019-11-26 20:42:17,788 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 20:42:17,793 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 20:42:17,794 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 20:42:17,794 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-26 20:42:17,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:17,817 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:17,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578570755] [2019-11-26 20:42:17,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:42:17,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-26 20:42:17,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900830589] [2019-11-26 20:42:17,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 20:42:17,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:17,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 20:42:17,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 20:42:17,870 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-26 20:42:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:17,937 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-26 20:42:17,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 20:42:17,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-26 20:42:17,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:17,939 INFO L225 Difference]: With dead ends: 35 [2019-11-26 20:42:17,939 INFO L226 Difference]: Without dead ends: 35 [2019-11-26 20:42:17,940 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 [2019-11-26 20:42:17,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-26 20:42:17,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-26 20:42:17,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-26 20:42:17,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-26 20:42:17,949 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-26 20:42:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:17,950 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-26 20:42:17,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 20:42:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-26 20:42:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 20:42:17,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:17,951 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] [2019-11-26 20:42:18,163 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-26 20:42:18,163 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]=== [2019-11-26 20:42:18,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:18,164 INFO L82 PathProgramCache]: Analyzing trace with hash -27715938, now seen corresponding path program 1 times [2019-11-26 20:42:18,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:18,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718941923] [2019-11-26 20:42:18,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:18,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 20:42:18,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:18,316 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:18,345 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718941923] [2019-11-26 20:42:18,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 20:42:18,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-26 20:42:18,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468164880] [2019-11-26 20:42:18,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 20:42:18,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:18,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 20:42:18,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 20:42:18,348 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-26 20:42:18,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:18,387 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-26 20:42:18,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 20:42:18,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-26 20:42:18,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:18,390 INFO L225 Difference]: With dead ends: 42 [2019-11-26 20:42:18,390 INFO L226 Difference]: Without dead ends: 42 [2019-11-26 20:42:18,393 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 [2019-11-26 20:42:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-26 20:42:18,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-26 20:42:18,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-26 20:42:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-26 20:42:18,400 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-26 20:42:18,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:18,401 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-26 20:42:18,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 20:42:18,401 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-26 20:42:18,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-26 20:42:18,404 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:18,405 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] [2019-11-26 20:42:18,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-26 20:42:18,606 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]=== [2019-11-26 20:42:18,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:18,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2019-11-26 20:42:18,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:18,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386470898] [2019-11-26 20:42:18,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:18,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 20:42:18,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:18,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:18,742 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:18,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:18,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386470898] [2019-11-26 20:42:18,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-26 20:42:18,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-26 20:42:18,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803661808] [2019-11-26 20:42:18,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 20:42:18,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:18,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 20:42:18,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 20:42:18,783 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-26 20:42:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:18,798 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-26 20:42:18,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 20:42:18,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-26 20:42:18,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:18,800 INFO L225 Difference]: With dead ends: 27 [2019-11-26 20:42:18,800 INFO L226 Difference]: Without dead ends: 27 [2019-11-26 20:42:18,800 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 [2019-11-26 20:42:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-26 20:42:18,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-26 20:42:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-26 20:42:18,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-26 20:42:18,804 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-26 20:42:18,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:18,804 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-26 20:42:18,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 20:42:18,805 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-26 20:42:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 20:42:18,805 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:18,806 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] [2019-11-26 20:42:19,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-26 20:42:19,017 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]=== [2019-11-26 20:42:19,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:19,018 INFO L82 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2019-11-26 20:42:19,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:19,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097615509] [2019-11-26 20:42:19,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:19,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 20:42:19,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:19,257 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:19,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097615509] [2019-11-26 20:42:19,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-26 20:42:19,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2019-11-26 20:42:19,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326651857] [2019-11-26 20:42:19,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 20:42:19,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:19,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 20:42:19,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-26 20:42:19,375 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2019-11-26 20:42:19,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:19,618 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2019-11-26 20:42:19,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-26 20:42:19,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-11-26 20:42:19,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:19,621 INFO L225 Difference]: With dead ends: 55 [2019-11-26 20:42:19,621 INFO L226 Difference]: Without dead ends: 55 [2019-11-26 20:42:19,622 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-26 20:42:19,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-26 20:42:19,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2019-11-26 20:42:19,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-26 20:42:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-11-26 20:42:19,628 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-11-26 20:42:19,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:19,629 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-11-26 20:42:19,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 20:42:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-11-26 20:42:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-26 20:42:19,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:19,630 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] [2019-11-26 20:42:19,833 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-26 20:42:19,834 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]=== [2019-11-26 20:42:19,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:19,835 INFO L82 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2019-11-26 20:42:19,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:19,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402824692] [2019-11-26 20:42:19,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:19,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-26 20:42:19,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:20,001 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 [2019-11-26 20:42:20,002 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 20:42:20,005 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 20:42:20,005 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 20:42:20,006 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-26 20:42:20,107 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 20:42:20,108 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 [2019-11-26 20:42:20,109 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 20:42:20,133 INFO L588 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-26 20:42:20,134 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 20:42:20,134 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-26 20:42:20,181 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 [2019-11-26 20:42:20,182 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 20:42:20,194 INFO L588 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-26 20:42:20,196 INFO L508 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. [2019-11-26 20:42:20,196 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-26 20:42:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:20,223 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:20,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:20,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402824692] [2019-11-26 20:42:20,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-26 20:42:20,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-26 20:42:20,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591287370] [2019-11-26 20:42:20,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 20:42:20,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:20,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 20:42:20,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-26 20:42:20,502 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2019-11-26 20:42:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:22,739 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-26 20:42:22,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 20:42:22,739 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-26 20:42:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:22,740 INFO L225 Difference]: With dead ends: 50 [2019-11-26 20:42:22,740 INFO L226 Difference]: Without dead ends: 50 [2019-11-26 20:42:22,740 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-26 20:42:22,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-26 20:42:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-11-26 20:42:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-26 20:42:22,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-26 20:42:22,745 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-26 20:42:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:22,746 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-26 20:42:22,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 20:42:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-26 20:42:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-26 20:42:22,747 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:22,747 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] [2019-11-26 20:42:22,954 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-11-26 20:42:22,955 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]=== [2019-11-26 20:42:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:22,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2019-11-26 20:42:22,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:22,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135926585] [2019-11-26 20:42:22,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:23,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-26 20:42:23,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:23,092 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 [2019-11-26 20:42:23,092 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 20:42:23,096 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-26 20:42:23,096 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 20:42:23,096 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-26 20:42:23,206 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 [2019-11-26 20:42:23,206 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-26 20:42:23,217 INFO L588 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-26 20:42:23,218 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-26 20:42:23,218 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-26 20:42:23,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:23,238 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 20:42:23,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135926585] [2019-11-26 20:42:23,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-26 20:42:23,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-26 20:42:23,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001014748] [2019-11-26 20:42:23,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-26 20:42:23,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:23,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-26 20:42:23,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-26 20:42:23,458 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2019-11-26 20:42:24,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:24,062 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-11-26 20:42:24,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-26 20:42:24,063 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-26 20:42:24,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:24,065 INFO L225 Difference]: With dead ends: 53 [2019-11-26 20:42:24,065 INFO L226 Difference]: Without dead ends: 53 [2019-11-26 20:42:24,066 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 [2019-11-26 20:42:24,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-26 20:42:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2019-11-26 20:42:24,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-26 20:42:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-26 20:42:24,071 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-26 20:42:24,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:24,072 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-26 20:42:24,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-26 20:42:24,072 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-26 20:42:24,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-26 20:42:24,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:24,073 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] [2019-11-26 20:42:24,275 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-11-26 20:42:24,276 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]=== [2019-11-26 20:42:24,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:24,277 INFO L82 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2019-11-26 20:42:24,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:24,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399196517] [2019-11-26 20:42:24,279 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:24,398 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-26 20:42:24,398 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-26 20:42:24,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 20:42:24,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:24,423 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 20:42:24,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399196517] [2019-11-26 20:42:24,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-26 20:42:24,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-26 20:42:24,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846512901] [2019-11-26 20:42:24,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 20:42:24,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-26 20:42:24,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 20:42:24,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 20:42:24,444 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-26 20:42:24,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 20:42:24,463 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-11-26 20:42:24,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 20:42:24,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-26 20:42:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 20:42:24,465 INFO L225 Difference]: With dead ends: 43 [2019-11-26 20:42:24,465 INFO L226 Difference]: Without dead ends: 43 [2019-11-26 20:42:24,465 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 [2019-11-26 20:42:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-26 20:42:24,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2019-11-26 20:42:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 20:42:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-11-26 20:42:24,471 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2019-11-26 20:42:24,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 20:42:24,471 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-11-26 20:42:24,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 20:42:24,471 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-11-26 20:42:24,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-26 20:42:24,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 20:42:24,472 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] [2019-11-26 20:42:24,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-11-26 20:42:24,681 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]=== [2019-11-26 20:42:24,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 20:42:24,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2019-11-26 20:42:24,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-26 20:42:24,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727045246] [2019-11-26 20:42:24,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-11-26 20:42:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 20:42:24,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-26 20:42:24,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 20:42:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 20:42:29,019 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 20:42:35,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-11-26 20:42:35,732 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:283) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) 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.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 20:42:35,740 INFO L168 Benchmark]: Toolchain (without parser) took 23529.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.8 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -40.8 MB). Peak memory consumption was 267.0 MB. Max. memory is 11.5 GB. [2019-11-26 20:42:35,740 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 20:42:35,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 867.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -118.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-26 20:42:35,742 INFO L168 Benchmark]: Boogie Preprocessor took 116.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-26 20:42:35,743 INFO L168 Benchmark]: RCFGBuilder took 1509.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.8 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-26 20:42:35,743 INFO L168 Benchmark]: TraceAbstraction took 21031.22 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -47.3 MB). Peak memory consumption was 143.0 MB. Max. memory is 11.5 GB. [2019-11-26 20:42:35,748 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 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 867.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -118.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 116.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1509.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.8 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21031.22 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -47.3 MB). Peak memory consumption was 143.0 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:283) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...