./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3c39aff9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 0775aa74e42740d69127a88680deb3bae2149559 ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 0775aa74e42740d69127a88680deb3bae2149559 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- This is Ultimate 0.1.24-3c39aff [2019-11-27 19:00:11,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 19:00:11,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 19:00:11,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 19:00:11,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 19:00:11,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 19:00:11,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 19:00:11,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 19:00:11,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 19:00:11,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 19:00:11,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 19:00:11,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 19:00:11,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 19:00:11,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 19:00:11,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 19:00:11,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 19:00:11,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 19:00:11,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 19:00:11,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 19:00:11,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 19:00:11,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 19:00:11,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 19:00:11,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 19:00:11,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 19:00:11,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 19:00:11,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 19:00:11,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 19:00:11,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 19:00:11,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 19:00:11,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 19:00:11,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 19:00:11,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 19:00:11,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 19:00:11,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 19:00:11,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 19:00:11,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 19:00:11,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 19:00:11,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 19:00:11,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 19:00:11,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 19:00:11,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 19:00:11,423 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 19:00:11,437 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 19:00:11,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 19:00:11,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 19:00:11,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 19:00:11,440 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 19:00:11,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 19:00:11,441 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 19:00:11,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 19:00:11,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 19:00:11,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 19:00:11,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 19:00:11,442 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 19:00:11,442 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 19:00:11,442 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 19:00:11,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 19:00:11,443 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 19:00:11,443 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 19:00:11,444 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 19:00:11,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 19:00:11,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 19:00:11,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 19:00:11,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 19:00:11,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 19:00:11,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 19:00:11,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 19:00:11,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 19:00:11,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 19:00:11,447 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 -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-11-27 19:00:11,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 19:00:11,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 19:00:11,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 19:00:11,798 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 19:00:11,799 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 19:00:11,800 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-27 19:00:11,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af4f7e5f1/a0fcfe82e4224ae1bdba5df44212b9c1/FLAG94a1b12eb [2019-11-27 19:00:12,515 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 19:00:12,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-27 19:00:12,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af4f7e5f1/a0fcfe82e4224ae1bdba5df44212b9c1/FLAG94a1b12eb [2019-11-27 19:00:12,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af4f7e5f1/a0fcfe82e4224ae1bdba5df44212b9c1 [2019-11-27 19:00:12,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 19:00:12,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-27 19:00:12,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 19:00:12,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 19:00:12,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 19:00:12,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:00:12" (1/1) ... [2019-11-27 19:00:12,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7696bfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:12, skipping insertion in model container [2019-11-27 19:00:12,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:00:12" (1/1) ... [2019-11-27 19:00:12,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 19:00:12,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 19:00:13,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 19:00:13,358 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-27 19:00:13,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28b027c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:13, skipping insertion in model container [2019-11-27 19:00:13,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 19:00:13,360 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-27 19:00:13,363 INFO L168 Benchmark]: Toolchain (without parser) took 628.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-27 19:00:13,363 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 19:00:13,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-27 19:00:13,367 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 625.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-3c39aff [2019-11-27 19:00:15,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 19:00:15,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 19:00:15,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 19:00:15,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 19:00:15,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 19:00:15,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 19:00:15,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 19:00:15,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 19:00:15,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 19:00:15,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 19:00:15,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 19:00:15,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 19:00:15,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 19:00:15,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 19:00:15,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 19:00:15,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 19:00:15,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 19:00:15,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 19:00:15,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 19:00:15,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 19:00:15,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 19:00:15,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 19:00:15,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 19:00:15,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 19:00:15,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 19:00:15,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 19:00:15,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 19:00:15,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 19:00:15,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 19:00:15,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 19:00:15,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 19:00:15,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 19:00:15,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 19:00:15,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 19:00:15,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 19:00:15,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 19:00:15,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 19:00:15,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 19:00:15,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 19:00:15,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 19:00:15,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 19:00:15,145 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 19:00:15,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 19:00:15,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 19:00:15,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 19:00:15,147 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 19:00:15,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 19:00:15,148 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 19:00:15,148 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 19:00:15,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 19:00:15,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 19:00:15,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 19:00:15,149 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 19:00:15,149 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 19:00:15,150 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 19:00:15,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 19:00:15,150 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 19:00:15,150 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 19:00:15,151 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 19:00:15,151 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 19:00:15,151 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 19:00:15,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 19:00:15,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 19:00:15,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 19:00:15,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 19:00:15,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 19:00:15,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 19:00:15,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 19:00:15,154 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 19:00:15,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 19:00:15,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 19:00:15,154 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 -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-11-27 19:00:15,452 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 19:00:15,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 19:00:15,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 19:00:15,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 19:00:15,471 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 19:00:15,472 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-27 19:00:15,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7e98208/f6c4954baf4142c28ffd12400def03cc/FLAG18ffc8059 [2019-11-27 19:00:15,966 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 19:00:15,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-27 19:00:15,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7e98208/f6c4954baf4142c28ffd12400def03cc/FLAG18ffc8059 [2019-11-27 19:00:16,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7e98208/f6c4954baf4142c28ffd12400def03cc [2019-11-27 19:00:16,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 19:00:16,275 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-27 19:00:16,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 19:00:16,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 19:00:16,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 19:00:16,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:00:16" (1/1) ... [2019-11-27 19:00:16,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da5c581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:16, skipping insertion in model container [2019-11-27 19:00:16,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:00:16" (1/1) ... [2019-11-27 19:00:16,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 19:00:16,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 19:00:16,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 19:00:16,902 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-27 19:00:16,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 19:00:17,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 19:00:17,051 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 19:00:17,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 19:00:17,278 INFO L208 MainTranslator]: Completed translation [2019-11-27 19:00:17,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17 WrapperNode [2019-11-27 19:00:17,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 19:00:17,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 19:00:17,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 19:00:17,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 19:00:17,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... [2019-11-27 19:00:17,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... [2019-11-27 19:00:17,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... [2019-11-27 19:00:17,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... [2019-11-27 19:00:17,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... [2019-11-27 19:00:17,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... [2019-11-27 19:00:17,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... [2019-11-27 19:00:17,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 19:00:17,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 19:00:17,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 19:00:17,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 19:00:17,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 19:00:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-27 19:00:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 19:00:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-27 19:00:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-27 19:00:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-27 19:00:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-27 19:00:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-27 19:00:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-27 19:00:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-27 19:00:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-27 19:00:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-27 19:00:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-27 19:00:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-27 19:00:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-27 19:00:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-27 19:00:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-27 19:00:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-27 19:00:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-27 19:00:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-27 19:00:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-27 19:00:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-27 19:00:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-27 19:00:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-27 19:00:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-27 19:00:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-27 19:00:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-27 19:00:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-27 19:00:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-27 19:00:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-27 19:00:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-27 19:00:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-27 19:00:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-27 19:00:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-27 19:00:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-27 19:00:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-27 19:00:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-27 19:00:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-27 19:00:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-27 19:00:17,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-27 19:00:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-27 19:00:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-27 19:00:17,520 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-27 19:00:17,521 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-27 19:00:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-27 19:00:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-27 19:00:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-27 19:00:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-27 19:00:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-27 19:00:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-27 19:00:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-27 19:00:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-27 19:00:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-27 19:00:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-27 19:00:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-27 19:00:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-27 19:00:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-27 19:00:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-27 19:00:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-27 19:00:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-27 19:00:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-27 19:00:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-27 19:00:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-27 19:00:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-27 19:00:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-27 19:00:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-27 19:00:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-27 19:00:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-27 19:00:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-27 19:00:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-27 19:00:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-27 19:00:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-27 19:00:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-27 19:00:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-27 19:00:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-27 19:00:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-27 19:00:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-27 19:00:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-27 19:00:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-27 19:00:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-27 19:00:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-27 19:00:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-27 19:00:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-27 19:00:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-27 19:00:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-27 19:00:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-27 19:00:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-27 19:00:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-27 19:00:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-27 19:00:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-27 19:00:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-27 19:00:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-27 19:00:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-27 19:00:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-27 19:00:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-27 19:00:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-27 19:00:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-27 19:00:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-27 19:00:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-27 19:00:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-27 19:00:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-27 19:00:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-27 19:00:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-27 19:00:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-27 19:00:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-27 19:00:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-27 19:00:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-27 19:00:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-27 19:00:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-27 19:00:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-27 19:00:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-27 19:00:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-27 19:00:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-27 19:00:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-27 19:00:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-27 19:00:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-27 19:00:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-27 19:00:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-27 19:00:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-27 19:00:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-27 19:00:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-27 19:00:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-27 19:00:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-27 19:00:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-27 19:00:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-27 19:00:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-27 19:00:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-27 19:00:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-27 19:00:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-27 19:00:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-27 19:00:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-27 19:00:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-27 19:00:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-27 19:00:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-27 19:00:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-27 19:00:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-27 19:00:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-27 19:00:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-27 19:00:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-27 19:00:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-27 19:00:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-27 19:00:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-27 19:00:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-27 19:00:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-27 19:00:17,559 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-27 19:00:17,560 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-27 19:00:17,561 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-27 19:00:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 19:00:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-27 19:00:17,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-27 19:00:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-27 19:00:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-27 19:00:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-27 19:00:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-27 19:00:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-27 19:00:17,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-27 19:00:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-27 19:00:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-27 19:00:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-27 19:00:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-27 19:00:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-27 19:00:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-27 19:00:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 19:00:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-27 19:00:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 19:00:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-27 19:00:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-27 19:00:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-27 19:00:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-27 19:00:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-27 19:00:18,329 WARN L749 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-27 19:00:18,694 WARN L749 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-27 19:00:19,088 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 19:00:19,089 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-27 19:00:19,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:00:19 BoogieIcfgContainer [2019-11-27 19:00:19,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 19:00:19,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 19:00:19,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 19:00:19,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 19:00:19,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:00:16" (1/3) ... [2019-11-27 19:00:19,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b59c39f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:00:19, skipping insertion in model container [2019-11-27 19:00:19,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:00:17" (2/3) ... [2019-11-27 19:00:19,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b59c39f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:00:19, skipping insertion in model container [2019-11-27 19:00:19,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:00:19" (3/3) ... [2019-11-27 19:00:19,102 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-27 19:00:19,114 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 19:00:19,125 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-27 19:00:19,141 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-27 19:00:19,168 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 19:00:19,168 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-27 19:00:19,168 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 19:00:19,168 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 19:00:19,169 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 19:00:19,169 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 19:00:19,169 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 19:00:19,169 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 19:00:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-27 19:00:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 19:00:19,203 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:19,204 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:19,205 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:19,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:19,212 INFO L82 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2019-11-27 19:00:19,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:19,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663817514] [2019-11-27 19:00:19,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:19,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-27 19:00:19,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:19,483 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:19,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663817514] [2019-11-27 19:00:19,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 19:00:19,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-27 19:00:19,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009816194] [2019-11-27 19:00:19,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 19:00:19,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:19,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 19:00:19,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:19,636 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-27 19:00:19,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:19,723 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-27 19:00:19,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 19:00:19,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-27 19:00:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:19,741 INFO L225 Difference]: With dead ends: 53 [2019-11-27 19:00:19,741 INFO L226 Difference]: Without dead ends: 50 [2019-11-27 19:00:19,743 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:19,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-27 19:00:19,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-27 19:00:19,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-27 19:00:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-27 19:00:19,822 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-27 19:00:19,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:19,823 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-27 19:00:19,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 19:00:19,823 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-27 19:00:19,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 19:00:19,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:19,825 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:20,033 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 19:00:20,035 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:20,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:20,036 INFO L82 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2019-11-27 19:00:20,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:20,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233451074] [2019-11-27 19:00:20,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:20,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-27 19:00:20,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:20,200 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:20,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233451074] [2019-11-27 19:00:20,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 19:00:20,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 19:00:20,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067113578] [2019-11-27 19:00:20,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 19:00:20,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:20,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 19:00:20,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 19:00:20,256 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-27 19:00:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:20,315 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-27 19:00:20,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 19:00:20,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-27 19:00:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:20,317 INFO L225 Difference]: With dead ends: 46 [2019-11-27 19:00:20,317 INFO L226 Difference]: Without dead ends: 43 [2019-11-27 19:00:20,318 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 19:00:20,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-27 19:00:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-27 19:00:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-27 19:00:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-27 19:00:20,324 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-27 19:00:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:20,325 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-27 19:00:20,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 19:00:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-27 19:00:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-27 19:00:20,326 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:20,326 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:20,542 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 19:00:20,547 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:20,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:20,548 INFO L82 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2019-11-27 19:00:20,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:20,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952491638] [2019-11-27 19:00:20,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:20,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-27 19:00:20,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:20,791 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:20,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952491638] [2019-11-27 19:00:20,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 19:00:20,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-27 19:00:20,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834225277] [2019-11-27 19:00:20,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 19:00:20,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 19:00:20,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:20,835 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-27 19:00:20,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:20,846 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-27 19:00:20,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 19:00:20,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-27 19:00:20,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:20,848 INFO L225 Difference]: With dead ends: 30 [2019-11-27 19:00:20,848 INFO L226 Difference]: Without dead ends: 30 [2019-11-27 19:00:20,849 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-27 19:00:20,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-27 19:00:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-27 19:00:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-27 19:00:20,854 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-27 19:00:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:20,854 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-27 19:00:20,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 19:00:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-27 19:00:20,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-27 19:00:20,856 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:20,856 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:21,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 19:00:21,076 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:21,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:21,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2019-11-27 19:00:21,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:21,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848417648] [2019-11-27 19:00:21,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:21,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 19:00:21,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:21,388 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:21,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848417648] [2019-11-27 19:00:21,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 19:00:21,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2019-11-27 19:00:21,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529539779] [2019-11-27 19:00:21,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 19:00:21,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:21,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 19:00:21,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-27 19:00:21,548 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 10 states. [2019-11-27 19:00:21,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:21,841 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-27 19:00:21,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-27 19:00:21,842 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2019-11-27 19:00:21,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:21,843 INFO L225 Difference]: With dead ends: 50 [2019-11-27 19:00:21,844 INFO L226 Difference]: Without dead ends: 50 [2019-11-27 19:00:21,844 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-27 19:00:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-27 19:00:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 29. [2019-11-27 19:00:21,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-27 19:00:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-27 19:00:21,858 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-27 19:00:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:21,859 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-27 19:00:21,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 19:00:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-27 19:00:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-27 19:00:21,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:21,861 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:22,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-27 19:00:22,079 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:22,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:22,079 INFO L82 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2019-11-27 19:00:22,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:22,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492041624] [2019-11-27 19:00:22,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:22,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-27 19:00:22,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:22,229 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-27 19:00:22,229 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 19:00:22,233 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 19:00:22,233 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-27 19:00:22,233 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-27 19:00:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:22,258 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:22,309 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492041624] [2019-11-27 19:00:22,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 19:00:22,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-27 19:00:22,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980162667] [2019-11-27 19:00:22,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 19:00:22,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:22,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 19:00:22,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:22,311 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-27 19:00:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:22,374 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-27 19:00:22,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 19:00:22,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-27 19:00:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:22,377 INFO L225 Difference]: With dead ends: 35 [2019-11-27 19:00:22,377 INFO L226 Difference]: Without dead ends: 35 [2019-11-27 19:00:22,377 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:22,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-27 19:00:22,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-27 19:00:22,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-27 19:00:22,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-27 19:00:22,382 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-27 19:00:22,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:22,382 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-27 19:00:22,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 19:00:22,383 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-27 19:00:22,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-27 19:00:22,384 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:22,384 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:22,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-27 19:00:22,596 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:22,596 INFO L82 PathProgramCache]: Analyzing trace with hash -27715938, now seen corresponding path program 1 times [2019-11-27 19:00:22,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:22,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566917635] [2019-11-27 19:00:22,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:22,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-27 19:00:22,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:22,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:22,748 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:22,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566917635] [2019-11-27 19:00:22,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 19:00:22,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-27 19:00:22,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024224297] [2019-11-27 19:00:22,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 19:00:22,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:22,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 19:00:22,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:22,773 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-27 19:00:22,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:22,811 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-27 19:00:22,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 19:00:22,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-27 19:00:22,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:22,813 INFO L225 Difference]: With dead ends: 42 [2019-11-27 19:00:22,813 INFO L226 Difference]: Without dead ends: 42 [2019-11-27 19:00:22,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:22,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-27 19:00:22,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-27 19:00:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-27 19:00:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-27 19:00:22,818 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-27 19:00:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:22,818 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-27 19:00:22,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 19:00:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-27 19:00:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-27 19:00:22,819 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:22,819 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:23,033 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-27 19:00:23,034 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2019-11-27 19:00:23,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:23,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245813760] [2019-11-27 19:00:23,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:23,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-27 19:00:23,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:23,172 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:23,203 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245813760] [2019-11-27 19:00:23,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-27 19:00:23,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-27 19:00:23,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029567628] [2019-11-27 19:00:23,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 19:00:23,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:23,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 19:00:23,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:23,205 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-27 19:00:23,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:23,215 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-27 19:00:23,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 19:00:23,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-27 19:00:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:23,217 INFO L225 Difference]: With dead ends: 27 [2019-11-27 19:00:23,217 INFO L226 Difference]: Without dead ends: 27 [2019-11-27 19:00:23,217 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-27 19:00:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-27 19:00:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-27 19:00:23,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-27 19:00:23,221 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-27 19:00:23,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:23,221 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-27 19:00:23,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 19:00:23,222 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-27 19:00:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-27 19:00:23,222 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:23,223 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:23,431 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-27 19:00:23,432 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:23,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:23,432 INFO L82 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2019-11-27 19:00:23,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:23,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396232397] [2019-11-27 19:00:23,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:23,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-27 19:00:23,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:23,674 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:23,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396232397] [2019-11-27 19:00:23,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-27 19:00:23,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2019-11-27 19:00:23,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387565160] [2019-11-27 19:00:23,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 19:00:23,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:23,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 19:00:23,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-27 19:00:23,799 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2019-11-27 19:00:24,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:24,045 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2019-11-27 19:00:24,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-27 19:00:24,047 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-11-27 19:00:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:24,049 INFO L225 Difference]: With dead ends: 55 [2019-11-27 19:00:24,049 INFO L226 Difference]: Without dead ends: 55 [2019-11-27 19:00:24,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-27 19:00:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-27 19:00:24,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2019-11-27 19:00:24,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-27 19:00:24,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-11-27 19:00:24,056 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-11-27 19:00:24,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:24,056 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-11-27 19:00:24,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 19:00:24,056 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-11-27 19:00:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-27 19:00:24,057 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:24,058 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:24,262 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-27 19:00:24,263 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:24,264 INFO L82 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2019-11-27 19:00:24,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:24,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189332627] [2019-11-27 19:00:24,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:24,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-27 19:00:24,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:24,440 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-27 19:00:24,441 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 19:00:24,443 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 19:00:24,443 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-27 19:00:24,444 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-27 19:00:24,520 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 19:00:24,520 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-27 19:00:24,522 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 19:00:24,543 INFO L588 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-27 19:00:24,544 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-27 19:00:24,544 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-27 19:00:24,623 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-27 19:00:24,623 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 19:00:24,647 INFO L588 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-27 19:00:24,648 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-27 19:00:24,648 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-27 19:00:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:24,688 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:24,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189332627] [2019-11-27 19:00:24,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-27 19:00:24,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-27 19:00:24,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861279360] [2019-11-27 19:00:24,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 19:00:24,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:24,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 19:00:24,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-27 19:00:24,937 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2019-11-27 19:00:27,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:27,173 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-27 19:00:27,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-27 19:00:27,174 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-27 19:00:27,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:27,175 INFO L225 Difference]: With dead ends: 50 [2019-11-27 19:00:27,175 INFO L226 Difference]: Without dead ends: 50 [2019-11-27 19:00:27,175 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-27 19:00:27,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-27 19:00:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-11-27 19:00:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-27 19:00:27,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-27 19:00:27,179 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-27 19:00:27,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:27,180 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-27 19:00:27,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 19:00:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-27 19:00:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-27 19:00:27,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:27,181 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:27,383 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-11-27 19:00:27,385 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:27,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2019-11-27 19:00:27,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:27,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232614080] [2019-11-27 19:00:27,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:27,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-27 19:00:27,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:27,532 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-27 19:00:27,533 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 19:00:27,537 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 19:00:27,537 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-27 19:00:27,537 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-27 19:00:27,678 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-27 19:00:27,678 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 19:00:27,691 INFO L588 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-27 19:00:27,692 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-27 19:00:27,692 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-27 19:00:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:27,712 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 19:00:27,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232614080] [2019-11-27 19:00:27,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-27 19:00:27,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-27 19:00:27,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846512901] [2019-11-27 19:00:27,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-27 19:00:27,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:27,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-27 19:00:27,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-27 19:00:27,903 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2019-11-27 19:00:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:28,562 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-11-27 19:00:28,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-27 19:00:28,562 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-27 19:00:28,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:28,563 INFO L225 Difference]: With dead ends: 53 [2019-11-27 19:00:28,564 INFO L226 Difference]: Without dead ends: 53 [2019-11-27 19:00:28,566 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-27 19:00:28,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-27 19:00:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2019-11-27 19:00:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-27 19:00:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-27 19:00:28,574 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-27 19:00:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:28,575 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-27 19:00:28,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-27 19:00:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-27 19:00:28,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-27 19:00:28,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:28,577 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:28,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-11-27 19:00:28,778 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:28,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:28,779 INFO L82 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2019-11-27 19:00:28,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:28,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839393132] [2019-11-27 19:00:28,780 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:28,896 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-27 19:00:28,897 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-27 19:00:28,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-27 19:00:28,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:28,921 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-27 19:00:28,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839393132] [2019-11-27 19:00:28,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-27 19:00:28,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-27 19:00:28,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205945301] [2019-11-27 19:00:28,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 19:00:28,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 19:00:28,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 19:00:28,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:28,945 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-27 19:00:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 19:00:28,971 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-11-27 19:00:28,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 19:00:28,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-27 19:00:28,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 19:00:28,973 INFO L225 Difference]: With dead ends: 43 [2019-11-27 19:00:28,973 INFO L226 Difference]: Without dead ends: 43 [2019-11-27 19:00:28,974 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-27 19:00:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-27 19:00:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2019-11-27 19:00:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-27 19:00:28,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-11-27 19:00:28,986 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2019-11-27 19:00:28,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 19:00:28,986 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-11-27 19:00:28,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 19:00:28,986 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-11-27 19:00:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-27 19:00:28,987 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 19:00:28,988 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 19:00:29,191 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-11-27 19:00:29,191 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-27 19:00:29,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 19:00:29,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2019-11-27 19:00:29,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 19:00:29,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774536200] [2019-11-27 19:00:29,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-11-27 19:00:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 19:00:29,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-27 19:00:29,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 19:00:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-27 19:00:33,533 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 19:00:42,359 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-11-27 19:00:42,360 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:283) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-27 19:00:42,366 INFO L168 Benchmark]: Toolchain (without parser) took 26089.99 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.0 MB). Free memory was 945.6 MB in the beginning and 985.7 MB in the end (delta: -40.1 MB). Peak memory consumption was 282.9 MB. Max. memory is 11.5 GB. [2019-11-27 19:00:42,367 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 19:00:42,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1004.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-11-27 19:00:42,368 INFO L168 Benchmark]: Boogie Preprocessor took 145.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 19:00:42,369 INFO L168 Benchmark]: RCFGBuilder took 1662.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 111.1 MB). Peak memory consumption was 111.1 MB. Max. memory is 11.5 GB. [2019-11-27 19:00:42,370 INFO L168 Benchmark]: TraceAbstraction took 23271.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 170.9 MB). Free memory was 990.8 MB in the beginning and 985.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 176.1 MB. Max. memory is 11.5 GB. [2019-11-27 19:00:42,373 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1004.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 145.97 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 1662.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 111.1 MB). Peak memory consumption was 111.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23271.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 170.9 MB). Free memory was 990.8 MB in the beginning and 985.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 176.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:283) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...