./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 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_test22_3-1.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 42bbcc36bf39908bb38d9521b1c7b6b031a006ff ............................................................................................................................. 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_test22_3-1.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 42bbcc36bf39908bb38d9521b1c7b6b031a006ff .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:09:43,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:09:43,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:09:44,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:09:44,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:09:44,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:09:44,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:09:44,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:09:44,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:09:44,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:09:44,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:09:44,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:09:44,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:09:44,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:09:44,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:09:44,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:09:44,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:09:44,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:09:44,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:09:44,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:09:44,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:09:44,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:09:44,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:09:44,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:09:44,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:09:44,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:09:44,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:09:44,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:09:44,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:09:44,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:09:44,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:09:44,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:09:44,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:09:44,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:09:44,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:09:44,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:09:44,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:09:44,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:09:44,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:09:44,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:09:44,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:09:44,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:09:44,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:09:44,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:09:44,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:09:44,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:09:44,106 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:09:44,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:09:44,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:09:44,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:09:44,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:09:44,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:09:44,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:09:44,108 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:09:44,108 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:09:44,108 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:09:44,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:09:44,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:09:44,109 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:09:44,109 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:09:44,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:09:44,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:09:44,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:09:44,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:09:44,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:09:44,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:09:44,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:09:44,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:09:44,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:09:44,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:09:44,112 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 -> 42bbcc36bf39908bb38d9521b1c7b6b031a006ff [2020-10-19 18:09:44,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:09:44,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:09:44,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:09:44,449 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:09:44,450 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:09:44,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2020-10-19 18:09:44,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd343e1b1/52b1b26c9cbc47449a133055545097a3/FLAG2a277ba10 [2020-10-19 18:09:45,066 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:09:45,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2020-10-19 18:09:45,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd343e1b1/52b1b26c9cbc47449a133055545097a3/FLAG2a277ba10 [2020-10-19 18:09:45,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd343e1b1/52b1b26c9cbc47449a133055545097a3 [2020-10-19 18:09:45,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:09:45,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:09:45,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:45,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:09:45,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:09:45,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:45" (1/1) ... [2020-10-19 18:09:45,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778baad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:45, skipping insertion in model container [2020-10-19 18:09:45,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:45" (1/1) ... [2020-10-19 18:09:45,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:09:45,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:09:45,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:46,023 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) [2020-10-19 18:09:46,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69cf2c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:46, skipping insertion in model container [2020-10-19 18:09:46,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:46,025 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 18:09:46,028 INFO L168 Benchmark]: Toolchain (without parser) took 690.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:09:46,029 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:09:46,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:09:46,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 682.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:09:47,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:09:47,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:09:47,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:09:47,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:09:47,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:09:47,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:09:47,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:09:47,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:09:47,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:09:47,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:09:47,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:09:47,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:09:47,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:09:47,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:09:47,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:09:47,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:09:47,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:09:47,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:09:47,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:09:47,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:09:47,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:09:47,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:09:47,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:09:47,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:09:47,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:09:47,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:09:47,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:09:47,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:09:47,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:09:47,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:09:47,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:09:47,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:09:47,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:09:47,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:09:47,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:09:47,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:09:47,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:09:47,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:09:47,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:09:47,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:09:47,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:09:47,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:09:47,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:09:47,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:09:47,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:09:47,825 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:09:47,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:09:47,826 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:09:47,826 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:09:47,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:09:47,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:09:47,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:09:47,828 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:09:47,828 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:09:47,829 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:09:47,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:09:47,829 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:09:47,829 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:09:47,831 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:09:47,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:09:47,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:09:47,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:09:47,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:09:47,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:09:47,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:09:47,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:09:47,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:09:47,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:09:47,834 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:09:47,834 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:09:47,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:09:47,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:09:47,835 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 -> 42bbcc36bf39908bb38d9521b1c7b6b031a006ff [2020-10-19 18:09:48,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:09:48,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:09:48,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:09:48,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:09:48,158 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:09:48,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2020-10-19 18:09:48,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8022ea2e5/5d2610c0a5dc413983eb198c111f42ad/FLAG416eb7a06 [2020-10-19 18:09:48,698 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:09:48,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2020-10-19 18:09:48,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8022ea2e5/5d2610c0a5dc413983eb198c111f42ad/FLAG416eb7a06 [2020-10-19 18:09:48,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8022ea2e5/5d2610c0a5dc413983eb198c111f42ad [2020-10-19 18:09:48,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:09:48,999 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:09:49,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:49,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:09:49,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:09:49,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:48" (1/1) ... [2020-10-19 18:09:49,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f124fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49, skipping insertion in model container [2020-10-19 18:09:49,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:48" (1/1) ... [2020-10-19 18:09:49,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:09:49,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:09:49,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:49,589 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 18:09:49,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:09:49,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:49,678 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:09:49,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:49,833 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:09:49,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49 WrapperNode [2020-10-19 18:09:49,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:49,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:09:49,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:09:49,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:09:49,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (1/1) ... [2020-10-19 18:09:49,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (1/1) ... [2020-10-19 18:09:49,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (1/1) ... [2020-10-19 18:09:49,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (1/1) ... [2020-10-19 18:09:49,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (1/1) ... [2020-10-19 18:09:49,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (1/1) ... [2020-10-19 18:09:49,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (1/1) ... [2020-10-19 18:09:49,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:09:49,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:09:49,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:09:49,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:09:49,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (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 [2020-10-19 18:09:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:09:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:09:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:09:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:09:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:09:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:09:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:09:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:09:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:09:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-19 18:09:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-19 18:09:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-19 18:09:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-19 18:09:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:09:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-19 18:09:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-19 18:09:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-19 18:09:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-19 18:09:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-19 18:09:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-19 18:09:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-19 18:09:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-19 18:09:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-19 18:09:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-19 18:09:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-19 18:09:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-19 18:09:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-19 18:09:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-19 18:09:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-19 18:09:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-19 18:09:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-19 18:09:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-19 18:09:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-19 18:09:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-19 18:09:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-19 18:09:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-19 18:09:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-19 18:09:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-19 18:09:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-19 18:09:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-19 18:09:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-19 18:09:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-19 18:09:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2020-10-19 18:09:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2020-10-19 18:09:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-19 18:09:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:09:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-19 18:09:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-19 18:09:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-19 18:09:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:09:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:09:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:09:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:09:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:09:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:09:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:09:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:09:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:09:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:09:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:09:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:09:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:09:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:09:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:09:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:09:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:09:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:09:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:09:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:09:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:09:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:09:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:09:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:09:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:09:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:09:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:09:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:09:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:09:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:09:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:09:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:09:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:09:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:09:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:09:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:09:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:09:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:09:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:09:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:09:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:09:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:09:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:09:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:09:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:09:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:09:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:09:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:09:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:09:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:09:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:09:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:09:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:09:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:09:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:09:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:09:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:09:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:09:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:09:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:09:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:09:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:09:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:09:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:09:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:09:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:09:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:09:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:09:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:09:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:09:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:09:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:09:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:09:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:09:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:09:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:09:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:09:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:09:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:09:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:09:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:09:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:09:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:09:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:09:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:09:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:09:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:09:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:09:50,036 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:09:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:09:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:09:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:09:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:09:50,037 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:09:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:09:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:09:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:09:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:09:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:09:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:09:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:09:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:09:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:09:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:09:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:09:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:09:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:09:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-19 18:09:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:09:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-19 18:09:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-19 18:09:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-19 18:09:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-19 18:09:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-19 18:09:50,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:09:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-19 18:09:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-19 18:09:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:09:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:09:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-19 18:09:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-19 18:09:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-19 18:09:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:09:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-19 18:09:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-19 18:09:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-19 18:09:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-19 18:09:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-19 18:09:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-19 18:09:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:09:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-19 18:09:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-19 18:09:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-19 18:09:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-19 18:09:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-19 18:09:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:09:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:09:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-19 18:09:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-19 18:09:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:09:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-19 18:09:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-19 18:09:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-19 18:09:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-19 18:09:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-19 18:09:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-19 18:09:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-19 18:09:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-19 18:09:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-19 18:09:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-19 18:09:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-19 18:09:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-19 18:09:50,049 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-19 18:09:50,049 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-19 18:09:50,049 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2020-10-19 18:09:50,049 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2020-10-19 18:09:50,049 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-19 18:09:50,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:09:50,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:09:50,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:09:50,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-19 18:09:50,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:09:50,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:09:50,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-19 18:09:50,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-19 18:09:50,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-19 18:09:50,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-19 18:09:50,821 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:09:51,298 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:09:51,610 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:09:51,610 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:09:51,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:09:51 BoogieIcfgContainer [2020-10-19 18:09:51,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:09:51,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:09:51,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:09:51,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:09:51,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:09:48" (1/3) ... [2020-10-19 18:09:51,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3987983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:09:51, skipping insertion in model container [2020-10-19 18:09:51,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:49" (2/3) ... [2020-10-19 18:09:51,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3987983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:09:51, skipping insertion in model container [2020-10-19 18:09:51,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:09:51" (3/3) ... [2020-10-19 18:09:51,623 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-1.i [2020-10-19 18:09:51,636 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:09:51,645 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2020-10-19 18:09:51,660 INFO L253 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2020-10-19 18:09:51,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:09:51,682 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:09:51,682 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:09:51,683 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:09:51,683 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:09:51,683 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:09:51,683 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:09:51,683 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:09:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-10-19 18:09:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:09:51,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:51,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:51,718 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:51,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1560720609, now seen corresponding path program 1 times [2020-10-19 18:09:51,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:51,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776110783] [2020-10-19 18:09:51,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:51,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:09:51,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:52,009 INFO L384 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 [2020-10-19 18:09:52,010 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:09:52,018 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:09:52,018 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:09:52,019 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:09:52,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:52,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:52,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776110783] [2020-10-19 18:09:52,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:09:52,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:09:52,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995914559] [2020-10-19 18:09:52,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:09:52,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:52,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:09:52,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:09:52,139 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 5 states. [2020-10-19 18:09:52,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:52,465 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2020-10-19 18:09:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:09:52,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-19 18:09:52,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:52,483 INFO L225 Difference]: With dead ends: 165 [2020-10-19 18:09:52,484 INFO L226 Difference]: Without dead ends: 162 [2020-10-19 18:09:52,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:09:52,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-19 18:09:52,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2020-10-19 18:09:52,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-19 18:09:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 168 transitions. [2020-10-19 18:09:52,549 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 168 transitions. Word has length 17 [2020-10-19 18:09:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:52,550 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 168 transitions. [2020-10-19 18:09:52,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:09:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 168 transitions. [2020-10-19 18:09:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:09:52,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:52,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:52,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:09:52,767 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:52,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:52,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1560720608, now seen corresponding path program 1 times [2020-10-19 18:09:52,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:52,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622806366] [2020-10-19 18:09:52,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:52,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:09:52,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:52,949 INFO L384 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 [2020-10-19 18:09:52,950 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:09:52,958 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:09:52,959 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:09:52,959 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:09:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:53,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:53,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622806366] [2020-10-19 18:09:53,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:09:53,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-19 18:09:53,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602427964] [2020-10-19 18:09:53,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:09:53,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:53,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:09:53,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:09:53,338 INFO L87 Difference]: Start difference. First operand 156 states and 168 transitions. Second operand 10 states. [2020-10-19 18:09:54,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:54,101 INFO L93 Difference]: Finished difference Result 161 states and 173 transitions. [2020-10-19 18:09:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:09:54,104 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-19 18:09:54,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:54,106 INFO L225 Difference]: With dead ends: 161 [2020-10-19 18:09:54,106 INFO L226 Difference]: Without dead ends: 161 [2020-10-19 18:09:54,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:09:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-19 18:09:54,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2020-10-19 18:09:54,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-19 18:09:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2020-10-19 18:09:54,123 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 17 [2020-10-19 18:09:54,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:54,123 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2020-10-19 18:09:54,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:09:54,123 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2020-10-19 18:09:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:09:54,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:54,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:54,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:09:54,339 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:54,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:54,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1532091458, now seen corresponding path program 1 times [2020-10-19 18:09:54,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:54,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67437487] [2020-10-19 18:09:54,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:54,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:09:54,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:54,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:54,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:54,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67437487] [2020-10-19 18:09:54,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:09:54,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:09:54,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740297861] [2020-10-19 18:09:54,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:09:54,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:54,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:09:54,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:09:54,546 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand 5 states. [2020-10-19 18:09:54,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:54,570 INFO L93 Difference]: Finished difference Result 155 states and 164 transitions. [2020-10-19 18:09:54,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:09:54,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-19 18:09:54,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:54,573 INFO L225 Difference]: With dead ends: 155 [2020-10-19 18:09:54,573 INFO L226 Difference]: Without dead ends: 155 [2020-10-19 18:09:54,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:09:54,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-19 18:09:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2020-10-19 18:09:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-19 18:09:54,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2020-10-19 18:09:54,585 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 17 [2020-10-19 18:09:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:54,586 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2020-10-19 18:09:54,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:09:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2020-10-19 18:09:54,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:09:54,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:54,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:54,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:09:54,799 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:54,800 INFO L82 PathProgramCache]: Analyzing trace with hash 106477568, now seen corresponding path program 1 times [2020-10-19 18:09:54,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:54,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36313758] [2020-10-19 18:09:54,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:54,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:09:54,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:54,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:55,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:55,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36313758] [2020-10-19 18:09:55,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:09:55,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:09:55,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555473065] [2020-10-19 18:09:55,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:09:55,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:55,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:09:55,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:09:55,060 INFO L87 Difference]: Start difference. First operand 153 states and 162 transitions. Second operand 5 states. [2020-10-19 18:09:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:55,083 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2020-10-19 18:09:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:09:55,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-19 18:09:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:55,086 INFO L225 Difference]: With dead ends: 155 [2020-10-19 18:09:55,086 INFO L226 Difference]: Without dead ends: 155 [2020-10-19 18:09:55,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:09:55,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-19 18:09:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2020-10-19 18:09:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-19 18:09:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 161 transitions. [2020-10-19 18:09:55,099 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 161 transitions. Word has length 29 [2020-10-19 18:09:55,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:55,099 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 161 transitions. [2020-10-19 18:09:55,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:09:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 161 transitions. [2020-10-19 18:09:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:09:55,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:55,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:55,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:09:55,314 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:55,314 INFO L82 PathProgramCache]: Analyzing trace with hash -890594785, now seen corresponding path program 1 times [2020-10-19 18:09:55,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:55,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123131610] [2020-10-19 18:09:55,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:55,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 18:09:55,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:55,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:55,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123131610] [2020-10-19 18:09:55,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:09:55,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2020-10-19 18:09:55,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752404207] [2020-10-19 18:09:55,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:09:55,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:55,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:09:55,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:09:55,585 INFO L87 Difference]: Start difference. First operand 153 states and 161 transitions. Second operand 9 states. [2020-10-19 18:09:55,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:55,687 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2020-10-19 18:09:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:09:55,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-19 18:09:55,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:55,690 INFO L225 Difference]: With dead ends: 174 [2020-10-19 18:09:55,690 INFO L226 Difference]: Without dead ends: 174 [2020-10-19 18:09:55,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:09:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-19 18:09:55,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 167. [2020-10-19 18:09:55,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-19 18:09:55,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2020-10-19 18:09:55,703 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 29 [2020-10-19 18:09:55,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:55,704 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2020-10-19 18:09:55,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:09:55,704 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2020-10-19 18:09:55,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-19 18:09:55,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:55,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:55,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 18:09:55,919 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:55,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:55,919 INFO L82 PathProgramCache]: Analyzing trace with hash -390780931, now seen corresponding path program 1 times [2020-10-19 18:09:55,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:55,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868579644] [2020-10-19 18:09:55,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:56,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:09:56,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:56,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:56,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868579644] [2020-10-19 18:09:56,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:09:56,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-19 18:09:56,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609319276] [2020-10-19 18:09:56,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:09:56,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:56,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:09:56,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:09:56,147 INFO L87 Difference]: Start difference. First operand 167 states and 175 transitions. Second operand 6 states. [2020-10-19 18:09:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:56,193 INFO L93 Difference]: Finished difference Result 173 states and 181 transitions. [2020-10-19 18:09:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:09:56,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-19 18:09:56,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:56,195 INFO L225 Difference]: With dead ends: 173 [2020-10-19 18:09:56,195 INFO L226 Difference]: Without dead ends: 169 [2020-10-19 18:09:56,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:09:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-19 18:09:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-10-19 18:09:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-19 18:09:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 177 transitions. [2020-10-19 18:09:56,217 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 177 transitions. Word has length 32 [2020-10-19 18:09:56,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:56,217 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 177 transitions. [2020-10-19 18:09:56,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:09:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 177 transitions. [2020-10-19 18:09:56,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-19 18:09:56,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:56,222 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:56,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 18:09:56,434 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:56,434 INFO L82 PathProgramCache]: Analyzing trace with hash 69328541, now seen corresponding path program 1 times [2020-10-19 18:09:56,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:56,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825669248] [2020-10-19 18:09:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:56,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:09:56,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:56,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825669248] [2020-10-19 18:09:56,610 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:09:56,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [958841619] [2020-10-19 18:09:56,610 INFO L95 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 [2020-10-19 18:09:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:56,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:09:56,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:56,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:56,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:57,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:09:57,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:09:57,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-19 18:09:57,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422920530] [2020-10-19 18:09:57,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:09:57,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:57,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:09:57,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:09:57,112 INFO L87 Difference]: Start difference. First operand 169 states and 177 transitions. Second operand 10 states. [2020-10-19 18:09:57,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:57,360 INFO L93 Difference]: Finished difference Result 177 states and 187 transitions. [2020-10-19 18:09:57,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:09:57,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-19 18:09:57,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:57,362 INFO L225 Difference]: With dead ends: 177 [2020-10-19 18:09:57,362 INFO L226 Difference]: Without dead ends: 173 [2020-10-19 18:09:57,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:09:57,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-19 18:09:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2020-10-19 18:09:57,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-19 18:09:57,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 181 transitions. [2020-10-19 18:09:57,371 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 181 transitions. Word has length 34 [2020-10-19 18:09:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:57,372 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 181 transitions. [2020-10-19 18:09:57,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:09:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 181 transitions. [2020-10-19 18:09:57,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-19 18:09:57,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:57,373 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:57,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk,8 mathsat -unsat_core_generation=3 [2020-10-19 18:09:57,778 INFO L429 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:57,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:57,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1976839203, now seen corresponding path program 2 times [2020-10-19 18:09:57,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:57,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082242374] [2020-10-19 18:09:57,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:57,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:09:57,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:09:57,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:09:57,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:57,926 INFO L384 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 [2020-10-19 18:09:57,926 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:09:57,935 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:09:57,935 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:09:57,935 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:09:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:09:58,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:09:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:09:58,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082242374] [2020-10-19 18:09:58,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:09:58,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-19 18:09:58,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042734751] [2020-10-19 18:09:58,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:09:58,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:09:58,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:09:58,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:09:58,146 INFO L87 Difference]: Start difference. First operand 173 states and 181 transitions. Second operand 12 states. [2020-10-19 18:09:59,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:09:59,198 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2020-10-19 18:09:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:09:59,199 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-19 18:09:59,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:09:59,201 INFO L225 Difference]: With dead ends: 198 [2020-10-19 18:09:59,201 INFO L226 Difference]: Without dead ends: 198 [2020-10-19 18:09:59,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:09:59,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-19 18:09:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 172. [2020-10-19 18:09:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-19 18:09:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 180 transitions. [2020-10-19 18:09:59,212 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 180 transitions. Word has length 38 [2020-10-19 18:09:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:09:59,213 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 180 transitions. [2020-10-19 18:09:59,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:09:59,213 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 180 transitions. [2020-10-19 18:09:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-19 18:09:59,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:09:59,215 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:09:59,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-19 18:09:59,431 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:09:59,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:09:59,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1976839202, now seen corresponding path program 1 times [2020-10-19 18:09:59,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:09:59,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673546688] [2020-10-19 18:09:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-19 18:09:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:59,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:09:59,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:59,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673546688] [2020-10-19 18:09:59,589 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:09:59,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [894048393] [2020-10-19 18:09:59,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:09:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:09:59,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:09:59,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:09:59,941 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:09:59,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804524851] [2020-10-19 18:09:59,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:10:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:00,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 18:10:00,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:00,126 INFO L384 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 [2020-10-19 18:10:00,127 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:00,133 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:00,133 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:00,133 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:10:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:00,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:01,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:01,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-19 18:10:01,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325493138] [2020-10-19 18:10:01,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-19 18:10:01,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:01,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-19 18:10:01,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-10-19 18:10:01,563 INFO L87 Difference]: Start difference. First operand 172 states and 180 transitions. Second operand 23 states. [2020-10-19 18:10:04,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:04,903 INFO L93 Difference]: Finished difference Result 238 states and 249 transitions. [2020-10-19 18:10:04,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:10:04,905 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 38 [2020-10-19 18:10:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:04,907 INFO L225 Difference]: With dead ends: 238 [2020-10-19 18:10:04,907 INFO L226 Difference]: Without dead ends: 238 [2020-10-19 18:10:04,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-10-19 18:10:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-19 18:10:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 171. [2020-10-19 18:10:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-19 18:10:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 179 transitions. [2020-10-19 18:10:04,916 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 179 transitions. Word has length 38 [2020-10-19 18:10:04,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:04,916 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 179 transitions. [2020-10-19 18:10:04,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-19 18:10:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 179 transitions. [2020-10-19 18:10:04,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-19 18:10:04,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:04,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:05,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2020-10-19 18:10:05,523 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:05,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:05,524 INFO L82 PathProgramCache]: Analyzing trace with hash 738093052, now seen corresponding path program 1 times [2020-10-19 18:10:05,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:05,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552875675] [2020-10-19 18:10:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:05,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 18:10:05,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:05,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:05,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552875675] [2020-10-19 18:10:05,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:05,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2020-10-19 18:10:05,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668203405] [2020-10-19 18:10:05,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:10:05,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:05,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:10:05,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:10:05,838 INFO L87 Difference]: Start difference. First operand 171 states and 179 transitions. Second operand 9 states. [2020-10-19 18:10:05,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:05,945 INFO L93 Difference]: Finished difference Result 185 states and 195 transitions. [2020-10-19 18:10:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:10:05,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-19 18:10:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:05,947 INFO L225 Difference]: With dead ends: 185 [2020-10-19 18:10:05,948 INFO L226 Difference]: Without dead ends: 185 [2020-10-19 18:10:05,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:10:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-19 18:10:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181. [2020-10-19 18:10:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-19 18:10:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 190 transitions. [2020-10-19 18:10:05,956 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 190 transitions. Word has length 42 [2020-10-19 18:10:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:05,956 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 190 transitions. [2020-10-19 18:10:05,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:10:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 190 transitions. [2020-10-19 18:10:05,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-19 18:10:05,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:05,958 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:06,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-19 18:10:06,168 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:06,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:06,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1565758750, now seen corresponding path program 1 times [2020-10-19 18:10:06,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:06,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282787356] [2020-10-19 18:10:06,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:06,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:06,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:06,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282787356] [2020-10-19 18:10:06,351 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:06,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [116128383] [2020-10-19 18:10:06,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:10:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:06,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:06,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:06,703 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:06,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686361106] [2020-10-19 18:10:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:10:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:06,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:10:06,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:06,862 INFO L384 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 [2020-10-19 18:10:06,862 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:06,864 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:06,864 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:06,864 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:10:07,113 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:07,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:07,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:07,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-19 18:10:07,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674286950] [2020-10-19 18:10:07,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:10:07,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:07,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:10:07,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:10:07,197 INFO L87 Difference]: Start difference. First operand 181 states and 190 transitions. Second operand 12 states. [2020-10-19 18:10:08,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:08,155 INFO L93 Difference]: Finished difference Result 205 states and 222 transitions. [2020-10-19 18:10:08,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:10:08,156 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-19 18:10:08,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:08,159 INFO L225 Difference]: With dead ends: 205 [2020-10-19 18:10:08,159 INFO L226 Difference]: Without dead ends: 205 [2020-10-19 18:10:08,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-10-19 18:10:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-19 18:10:08,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 179. [2020-10-19 18:10:08,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-19 18:10:08,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 188 transitions. [2020-10-19 18:10:08,168 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 188 transitions. Word has length 43 [2020-10-19 18:10:08,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:08,168 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 188 transitions. [2020-10-19 18:10:08,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:10:08,168 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 188 transitions. [2020-10-19 18:10:08,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-19 18:10:08,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:08,169 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:08,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3,16 cvc4 --incremental --print-success --lang smt --rewrite-divk,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:10:08,773 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:08,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:08,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1565758749, now seen corresponding path program 1 times [2020-10-19 18:10:08,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:08,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133958122] [2020-10-19 18:10:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:08,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:08,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:08,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133958122] [2020-10-19 18:10:08,948 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:08,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [375769556] [2020-10-19 18:10:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:10:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:09,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:09,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:09,321 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:09,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512706728] [2020-10-19 18:10:09,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:10:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:09,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 18:10:09,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:09,492 INFO L384 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 [2020-10-19 18:10:09,493 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:09,498 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:09,499 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:09,499 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:10:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:09,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:10,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:10,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-19 18:10:10,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50731308] [2020-10-19 18:10:10,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-19 18:10:10,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:10,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-19 18:10:10,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2020-10-19 18:10:10,828 INFO L87 Difference]: Start difference. First operand 179 states and 188 transitions. Second operand 23 states. [2020-10-19 18:10:13,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:13,752 INFO L93 Difference]: Finished difference Result 181 states and 189 transitions. [2020-10-19 18:10:13,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:10:13,753 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2020-10-19 18:10:13,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:13,754 INFO L225 Difference]: With dead ends: 181 [2020-10-19 18:10:13,754 INFO L226 Difference]: Without dead ends: 181 [2020-10-19 18:10:13,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2020-10-19 18:10:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-19 18:10:13,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2020-10-19 18:10:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-19 18:10:13,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 186 transitions. [2020-10-19 18:10:13,762 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 186 transitions. Word has length 43 [2020-10-19 18:10:13,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:13,762 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 186 transitions. [2020-10-19 18:10:13,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-19 18:10:13,762 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 186 transitions. [2020-10-19 18:10:13,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-19 18:10:13,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:13,763 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:14,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:10:14,379 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:14,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:14,381 INFO L82 PathProgramCache]: Analyzing trace with hash -2140043519, now seen corresponding path program 1 times [2020-10-19 18:10:14,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:14,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836871948] [2020-10-19 18:10:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:14,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:14,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:14,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836871948] [2020-10-19 18:10:14,570 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:14,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [83309783] [2020-10-19 18:10:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:10:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:14,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:10:14,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:14,887 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:14,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136775904] [2020-10-19 18:10:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:10:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:15,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:10:15,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:15,038 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:15,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:15,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 18:10:15,038 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 18:10:15,038 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:10:15,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3,22 cvc4 --incremental --print-success --lang smt --rewrite-divk,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:10:15,650 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-19 18:10:15,659 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 18:10:15,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:10:15 BoogieIcfgContainer [2020-10-19 18:10:15,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:10:15,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:10:15,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:10:15,660 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:10:15,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:09:51" (3/4) ... [2020-10-19 18:10:15,664 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:10:15,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:10:15,666 INFO L168 Benchmark]: Toolchain (without parser) took 26672.80 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 394.3 MB). Free memory was 947.9 MB in the beginning and 911.7 MB in the end (delta: 36.2 MB). Peak memory consumption was 430.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:15,666 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:10:15,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:15,667 INFO L168 Benchmark]: Boogie Preprocessor took 99.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:15,667 INFO L168 Benchmark]: RCFGBuilder took 1678.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 982.7 MB in the end (delta: 110.7 MB). Peak memory consumption was 110.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:15,668 INFO L168 Benchmark]: TraceAbstraction took 24044.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 250.1 MB). Free memory was 982.7 MB in the beginning and 911.7 MB in the end (delta: 71.0 MB). Peak memory consumption was 321.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:15,668 INFO L168 Benchmark]: Witness Printer took 4.77 ms. Allocated memory is still 1.4 GB. Free memory is still 911.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:10:15,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 834.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 99.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1678.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 982.7 MB in the end (delta: 110.7 MB). Peak memory consumption was 110.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24044.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 250.1 MB). Free memory was 982.7 MB in the beginning and 911.7 MB in the end (delta: 71.0 MB). Peak memory consumption was 321.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.77 ms. Allocated memory is still 1.4 GB. Free memory is still 911.7 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L771] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND TRUE !kobj [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_get(kobj) [L758] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] v->counter - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 342 locations, 71 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 23.9s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1874 SDtfs, 624 SDslu, 11670 SDs, 0 SdLazy, 4181 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 916 GetRequests, 759 SyntacticMatches, 17 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred 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: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 149 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 379 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 734 ConstructedInterpolants, 52 QuantifiedInterpolants, 94265 SizeOfPredicates, 53 NumberOfNonLiveVariables, 1729 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 168/174 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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...