./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3d056a1f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a2aa33a4d599a5d6897f5617ce765d9180019e00 ............................................................................................................................ 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_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a2aa33a4d599a5d6897f5617ce765d9180019e00 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-3d056a1 [2019-11-22 14:19:36,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:19:36,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:19:36,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:19:36,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:19:36,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:19:36,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:19:36,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:19:36,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:19:36,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:19:36,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:19:36,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:19:36,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:19:36,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:19:36,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:19:36,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:19:36,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:19:36,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:19:36,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:19:36,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:19:36,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:19:36,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:19:36,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:19:36,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:19:36,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:19:36,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:19:36,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:19:36,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:19:36,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:19:36,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:19:36,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:19:36,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:19:36,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:19:36,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:19:36,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:19:36,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:19:36,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:19:36,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:19:36,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:19:36,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:19:36,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:19:36,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-22 14:19:36,466 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:19:36,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:19:36,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:19:36,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:19:36,468 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:19:36,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:19:36,469 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:19:36,469 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 14:19:36,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 14:19:36,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:19:36,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:19:36,470 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 14:19:36,470 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 14:19:36,471 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 14:19:36,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:19:36,471 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:19:36,471 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:19:36,472 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:19:36,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:19:36,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:19:36,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:19:36,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:19:36,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:19:36,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:19:36,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:19:36,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 14:19:36,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 14:19:36,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2aa33a4d599a5d6897f5617ce765d9180019e00 [2019-11-22 14:19:36,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:19:36,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:19:36,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:19:36,787 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:19:36,787 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:19:36,788 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 14:19:36,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dade56f20/7ff9fa7047614c32a0027303671671cd/FLAG583b98dca [2019-11-22 14:19:37,393 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:19:37,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 14:19:37,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dade56f20/7ff9fa7047614c32a0027303671671cd/FLAG583b98dca [2019-11-22 14:19:37,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dade56f20/7ff9fa7047614c32a0027303671671cd [2019-11-22 14:19:37,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:19:37,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 14:19:37,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:19:37,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:19:37,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:19:37,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:19:37" (1/1) ... [2019-11-22 14:19:37,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f36572e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:37, skipping insertion in model container [2019-11-22 14:19:37,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:19:37" (1/1) ... [2019-11-22 14:19:37,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:19:37,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:19:38,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:19:38,303 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-22 14:19:38,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5eacfcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:38, skipping insertion in model container [2019-11-22 14:19:38,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:19:38,305 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-22 14:19:38,308 INFO L168 Benchmark]: Toolchain (without parser) took 619.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:38,309 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:19:38,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:38,313 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 615.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 577]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-3d056a1 [2019-11-22 14:19:40,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:19:40,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:19:40,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:19:40,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:19:40,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:19:40,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:19:40,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:19:40,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:19:40,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:19:40,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:19:40,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:19:40,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:19:40,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:19:40,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:19:40,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:19:40,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:19:40,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:19:40,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:19:40,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:19:40,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:19:40,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:19:40,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:19:40,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:19:40,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:19:40,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:19:40,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:19:40,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:19:40,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:19:40,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:19:40,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:19:40,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:19:40,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:19:40,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:19:40,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:19:40,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:19:40,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:19:40,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:19:40,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:19:40,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:19:40,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:19:40,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-22 14:19:40,147 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:19:40,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:19:40,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:19:40,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:19:40,150 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:19:40,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:19:40,150 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:19:40,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 14:19:40,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 14:19:40,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:19:40,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:19:40,152 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 14:19:40,152 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 14:19:40,152 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 14:19:40,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:19:40,153 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:19:40,153 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 14:19:40,153 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 14:19:40,154 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:19:40,154 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:19:40,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:19:40,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:19:40,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:19:40,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:19:40,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:19:40,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:19:40,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:19:40,156 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 14:19:40,156 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 14:19:40,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 14:19:40,157 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2aa33a4d599a5d6897f5617ce765d9180019e00 [2019-11-22 14:19:40,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:19:40,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:19:40,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:19:40,498 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:19:40,498 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:19:40,500 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 14:19:40,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e024c1508/0f9f1e86548745d89dcf5a79fa52b419/FLAG1885a40d5 [2019-11-22 14:19:41,160 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:19:41,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-22 14:19:41,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e024c1508/0f9f1e86548745d89dcf5a79fa52b419/FLAG1885a40d5 [2019-11-22 14:19:41,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e024c1508/0f9f1e86548745d89dcf5a79fa52b419 [2019-11-22 14:19:41,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:19:41,435 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 14:19:41,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:19:41,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:19:41,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:19:41,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:19:41" (1/1) ... [2019-11-22 14:19:41,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb8afde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:41, skipping insertion in model container [2019-11-22 14:19:41,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:19:41" (1/1) ... [2019-11-22 14:19:41,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:19:41,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:19:42,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:19:42,112 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 14:19:42,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:19:42,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:19:42,255 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 14:19:42,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:19:42,462 INFO L208 MainTranslator]: Completed translation [2019-11-22 14:19:42,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42 WrapperNode [2019-11-22 14:19:42,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:19:42,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 14:19:42,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 14:19:42,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 14:19:42,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... [2019-11-22 14:19:42,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... [2019-11-22 14:19:42,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... [2019-11-22 14:19:42,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... [2019-11-22 14:19:42,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... [2019-11-22 14:19:42,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... [2019-11-22 14:19:42,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... [2019-11-22 14:19:42,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 14:19:42,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 14:19:42,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 14:19:42,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 14:19:42,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:19:42,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 14:19:42,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 14:19:42,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 14:19:42,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 14:19:42,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 14:19:42,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 14:19:42,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 14:19:42,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 14:19:42,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 14:19:42,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 14:19:42,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 14:19:42,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 14:19:42,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 14:19:42,667 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 14:19:42,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 14:19:42,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 14:19:42,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 14:19:42,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 14:19:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 14:19:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 14:19:42,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 14:19:42,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 14:19:42,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 14:19:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 14:19:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 14:19:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 14:19:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 14:19:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 14:19:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 14:19:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 14:19:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 14:19:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 14:19:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 14:19:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 14:19:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 14:19:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 14:19:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 14:19:42,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 14:19:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 14:19:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 14:19:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 14:19:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 14:19:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 14:19:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 14:19:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 14:19:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 14:19:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 14:19:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 14:19:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 14:19:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 14:19:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 14:19:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 14:19:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 14:19:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 14:19:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 14:19:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 14:19:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 14:19:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 14:19:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 14:19:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 14:19:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 14:19:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 14:19:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 14:19:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 14:19:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 14:19:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 14:19:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 14:19:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 14:19:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 14:19:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 14:19:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 14:19:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 14:19:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 14:19:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 14:19:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 14:19:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 14:19:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 14:19:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 14:19:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 14:19:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 14:19:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 14:19:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 14:19:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 14:19:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 14:19:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 14:19:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 14:19:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 14:19:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 14:19:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 14:19:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 14:19:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 14:19:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 14:19:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 14:19:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 14:19:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 14:19:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 14:19:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 14:19:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 14:19:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 14:19:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 14:19:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 14:19:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 14:19:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 14:19:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 14:19:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 14:19:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 14:19:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 14:19:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 14:19:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 14:19:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 14:19:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 14:19:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 14:19:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 14:19:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 14:19:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 14:19:42,694 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 14:19:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 14:19:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 14:19:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 14:19:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 14:19:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 14:19:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 14:19:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 14:19:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 14:19:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 14:19:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 14:19:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 14:19:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 14:19:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 14:19:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 14:19:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 14:19:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 14:19:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 14:19:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 14:19:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 14:19:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 14:19:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 14:19:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 14:19:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 14:19:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 14:19:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 14:19:42,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 14:19:42,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 14:19:42,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 14:19:42,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 14:19:42,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 14:19:42,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 14:19:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 14:19:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 14:19:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 14:19:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 14:19:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 14:19:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 14:19:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 14:19:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 14:19:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 14:19:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 14:19:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 14:19:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 14:19:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 14:19:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 14:19:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 14:19:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 14:19:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 14:19:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 14:19:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 14:19:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 14:19:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 14:19:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 14:19:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 14:19:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 14:19:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 14:19:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 14:19:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 14:19:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 14:19:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 14:19:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 14:19:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 14:19:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 14:19:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 14:19:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 14:19:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 14:19:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 14:19:43,380 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 14:19:43,777 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 14:19:44,099 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 14:19:44,100 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 14:19:44,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:19:44 BoogieIcfgContainer [2019-11-22 14:19:44,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 14:19:44,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 14:19:44,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 14:19:44,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 14:19:44,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:19:41" (1/3) ... [2019-11-22 14:19:44,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb6f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:19:44, skipping insertion in model container [2019-11-22 14:19:44,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:42" (2/3) ... [2019-11-22 14:19:44,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb6f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:19:44, skipping insertion in model container [2019-11-22 14:19:44,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:19:44" (3/3) ... [2019-11-22 14:19:44,112 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2019-11-22 14:19:44,122 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 14:19:44,132 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-22 14:19:44,146 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-22 14:19:44,169 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 14:19:44,169 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 14:19:44,170 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 14:19:44,170 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 14:19:44,170 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 14:19:44,171 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 14:19:44,171 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 14:19:44,171 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 14:19:44,194 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-11-22 14:19:44,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 14:19:44,204 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:44,205 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:44,206 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:44,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:44,214 INFO L82 PathProgramCache]: Analyzing trace with hash 927863930, now seen corresponding path program 1 times [2019-11-22 14:19:44,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:44,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1966636098] [2019-11-22 14:19:44,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:44,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:19:44,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:19:44,587 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:19:44,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1966636098] [2019-11-22 14:19:44,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:44,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 14:19:44,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321268717] [2019-11-22 14:19:44,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:19:44,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:44,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:19:44,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:44,709 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2019-11-22 14:19:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:44,752 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-11-22 14:19:44,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:19:44,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 14:19:44,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:44,766 INFO L225 Difference]: With dead ends: 42 [2019-11-22 14:19:44,766 INFO L226 Difference]: Without dead ends: 39 [2019-11-22 14:19:44,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:44,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-22 14:19:44,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2019-11-22 14:19:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-22 14:19:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-11-22 14:19:44,823 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2019-11-22 14:19:44,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:44,824 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-11-22 14:19:44,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:19:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-11-22 14:19:44,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 14:19:44,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:44,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:45,031 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:45,032 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:45,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1624293031, now seen corresponding path program 1 times [2019-11-22 14:19:45,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:45,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [179403902] [2019-11-22 14:19:45,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:45,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 14:19:45,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:19:45,299 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:19:45,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [179403902] [2019-11-22 14:19:45,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:45,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 14:19:45,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446338250] [2019-11-22 14:19:45,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 14:19:45,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:45,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 14:19:45,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 14:19:45,371 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 3 states. [2019-11-22 14:19:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:45,438 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-11-22 14:19:45,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 14:19:45,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-22 14:19:45,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:45,440 INFO L225 Difference]: With dead ends: 40 [2019-11-22 14:19:45,440 INFO L226 Difference]: Without dead ends: 37 [2019-11-22 14:19:45,441 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 14:19:45,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-22 14:19:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2019-11-22 14:19:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-22 14:19:45,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-22 14:19:45,455 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2019-11-22 14:19:45,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:45,456 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-22 14:19:45,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 14:19:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-22 14:19:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-22 14:19:45,458 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:45,458 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:45,661 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:45,662 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:45,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1911181477, now seen corresponding path program 1 times [2019-11-22 14:19:45,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:45,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [517440243] [2019-11-22 14:19:45,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:45,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:19:45,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:46,029 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:46,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [517440243] [2019-11-22 14:19:46,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:46,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 14:19:46,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607126141] [2019-11-22 14:19:46,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:19:46,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:46,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:19:46,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:46,075 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2019-11-22 14:19:46,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:46,090 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-11-22 14:19:46,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:19:46,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-22 14:19:46,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:46,093 INFO L225 Difference]: With dead ends: 24 [2019-11-22 14:19:46,093 INFO L226 Difference]: Without dead ends: 24 [2019-11-22 14:19:46,093 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:46,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-22 14:19:46,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-22 14:19:46,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-22 14:19:46,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-11-22 14:19:46,102 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2019-11-22 14:19:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:46,104 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-11-22 14:19:46,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:19:46,104 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-11-22 14:19:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 14:19:46,105 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:46,105 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:46,309 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:46,309 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:46,310 INFO L82 PathProgramCache]: Analyzing trace with hash 882916751, now seen corresponding path program 1 times [2019-11-22 14:19:46,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:46,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1238767683] [2019-11-22 14:19:46,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:46,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:19:46,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:46,561 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:46,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1238767683] [2019-11-22 14:19:46,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:46,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 14:19:46,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683458360] [2019-11-22 14:19:46,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:19:46,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:46,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:19:46,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:46,622 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2019-11-22 14:19:46,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:46,692 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-22 14:19:46,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:19:46,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-22 14:19:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:46,694 INFO L225 Difference]: With dead ends: 29 [2019-11-22 14:19:46,694 INFO L226 Difference]: Without dead ends: 29 [2019-11-22 14:19:46,695 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:46,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-22 14:19:46,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-22 14:19:46,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-22 14:19:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-22 14:19:46,701 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 21 [2019-11-22 14:19:46,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:46,701 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-22 14:19:46,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:19:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-22 14:19:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 14:19:46,703 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:46,703 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:46,905 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:46,906 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash 911545902, now seen corresponding path program 1 times [2019-11-22 14:19:46,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:46,909 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [477652417] [2019-11-22 14:19:46,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:47,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 14:19:47,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:19:47,255 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:47,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [477652417] [2019-11-22 14:19:47,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 14:19:47,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-11-22 14:19:47,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245804499] [2019-11-22 14:19:47,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 14:19:47,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:47,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 14:19:47,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 14:19:47,383 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 6 states. [2019-11-22 14:19:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:47,523 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2019-11-22 14:19:47,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 14:19:47,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-22 14:19:47,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:47,525 INFO L225 Difference]: With dead ends: 48 [2019-11-22 14:19:47,525 INFO L226 Difference]: Without dead ends: 48 [2019-11-22 14:19:47,526 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 14:19:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-22 14:19:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2019-11-22 14:19:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-22 14:19:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2019-11-22 14:19:47,533 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 21 [2019-11-22 14:19:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:47,534 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2019-11-22 14:19:47,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 14:19:47,534 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-11-22 14:19:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 14:19:47,535 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:47,535 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:47,738 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:47,739 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:47,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:47,739 INFO L82 PathProgramCache]: Analyzing trace with hash 618142895, now seen corresponding path program 1 times [2019-11-22 14:19:47,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:47,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2024180941] [2019-11-22 14:19:47,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:47,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:19:47,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:48,007 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:48,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2024180941] [2019-11-22 14:19:48,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:48,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-22 14:19:48,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818628295] [2019-11-22 14:19:48,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 14:19:48,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:48,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 14:19:48,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-22 14:19:48,081 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 9 states. [2019-11-22 14:19:48,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:48,245 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2019-11-22 14:19:48,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 14:19:48,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-22 14:19:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:48,247 INFO L225 Difference]: With dead ends: 42 [2019-11-22 14:19:48,247 INFO L226 Difference]: Without dead ends: 42 [2019-11-22 14:19:48,247 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-22 14:19:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-22 14:19:48,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2019-11-22 14:19:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-22 14:19:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-11-22 14:19:48,254 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 21 [2019-11-22 14:19:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:48,255 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-11-22 14:19:48,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 14:19:48,255 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-11-22 14:19:48,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 14:19:48,256 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:48,256 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:48,461 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:48,461 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:48,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:48,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1600615901, now seen corresponding path program 1 times [2019-11-22 14:19:48,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:48,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [664669569] [2019-11-22 14:19:48,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:19:48,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 14:19:48,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:19:48,750 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 14:19:48,750 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 14:19:48,754 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 14:19:48,754 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 14:19:48,755 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 14:19:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:48,779 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:19:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 14:19:48,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [664669569] [2019-11-22 14:19:48,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:19:48,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 14:19:48,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313260993] [2019-11-22 14:19:48,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 14:19:48,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:19:48,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 14:19:48,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:48,845 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2019-11-22 14:19:48,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:19:48,891 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-11-22 14:19:48,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:19:48,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-22 14:19:48,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:19:48,893 INFO L225 Difference]: With dead ends: 35 [2019-11-22 14:19:48,893 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 14:19:48,893 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 14:19:48,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 14:19:48,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2019-11-22 14:19:48,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-22 14:19:48,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-11-22 14:19:48,900 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2019-11-22 14:19:48,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:19:48,900 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-22 14:19:48,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 14:19:48,901 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-11-22 14:19:48,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 14:19:48,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:19:48,902 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:19:49,105 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:49,106 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_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 14:19:49,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:19:49,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1221784944, now seen corresponding path program 1 times [2019-11-22 14:19:49,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:19:49,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1250179759] [2019-11-22 14:19:49,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 14:19:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 14:19:49,486 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-22 14:19:49,486 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 14:19:49,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 14:19:49,701 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-22 14:19:49,707 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-22 14:19:49,708 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-22 14:19:49,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:19:49 BoogieIcfgContainer [2019-11-22 14:19:49,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 14:19:49,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 14:19:49,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 14:19:49,719 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 14:19:49,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:19:44" (3/4) ... [2019-11-22 14:19:49,723 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-22 14:19:49,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 14:19:49,725 INFO L168 Benchmark]: Toolchain (without parser) took 8290.44 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.9 MB). Free memory was 956.3 MB in the beginning and 893.7 MB in the end (delta: 62.6 MB). Peak memory consumption was 286.5 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:49,726 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:19:49,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1026.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:49,727 INFO L168 Benchmark]: Boogie Preprocessor took 128.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:19:49,728 INFO L168 Benchmark]: RCFGBuilder took 1507.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.0 MB in the end (delta: 110.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:49,729 INFO L168 Benchmark]: TraceAbstraction took 5614.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 74.4 MB). Free memory was 988.5 MB in the beginning and 893.7 MB in the end (delta: 94.8 MB). Peak memory consumption was 169.2 MB. Max. memory is 11.5 GB. [2019-11-22 14:19:49,729 INFO L168 Benchmark]: Witness Printer took 5.38 ms. Allocated memory is still 1.3 GB. Free memory is still 893.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:19:49,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 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 1026.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1507.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.0 MB in the end (delta: 110.0 MB). Peak memory consumption was 110.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5614.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 74.4 MB). Free memory was 988.5 MB in the beginning and 893.7 MB in the end (delta: 94.8 MB). Peak memory consumption was 169.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.38 ms. Allocated memory is still 1.3 GB. Free memory is still 893.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 765]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 765. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2080308292:0}] [L766] CALL entry_point() VAL [ldv_global_msg_list={-2080308292:0}] [L759] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2080308292:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={32:0}, ldv_global_msg_list={-2080308292:0}, malloc(size)={32:0}, size=4] [L759] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2080308292:0}, ldv_malloc(sizeof(int))={32:0}] [L759] int *p = (int *)ldv_malloc(sizeof(int)); [L760] COND TRUE \read(*p) VAL [ldv_global_msg_list={-2080308292:0}, p={32:0}] [L761] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2080308292:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={1677787827:0}, ldv_global_msg_list={-2080308292:0}, malloc(size)={1677787827:0}, size=4] [L761] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2080308292:0}, ldv_malloc(sizeof(int))={1677787827:0}, p={32:0}] [L761] int *q = (int *)ldv_malloc(sizeof(int)); [L762] free(q) VAL [ldv_global_msg_list={-2080308292:0}, p={32:0}, q={1677787827:0}] [L762] free(q) VAL [ldv_global_msg_list={-2080308292:0}, p={32:0}, q={1677787827:0}] [L762] free(q) [L766] RET entry_point() VAL [ldv_global_msg_list={-2080308292:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 338 locations, 74 error locations. Result: UNSAFE, OverallTime: 5.5s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 182 SDtfs, 58 SDslu, 353 SDs, 0 SdLazy, 209 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 40 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 260 ConstructedInterpolants, 12 QuantifiedInterpolants, 12688 SizeOfPredicates, 10 NumberOfNonLiveVariables, 543 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 38/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...