./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f4d5612c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.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 e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.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 e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-f4d5612 [2019-11-28 12:43:06,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:43:06,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:43:06,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:43:06,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:43:06,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:43:06,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:43:06,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:43:06,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:43:06,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:43:06,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:43:06,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:43:06,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:43:06,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:43:06,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:43:06,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:43:06,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:43:06,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:43:06,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:43:06,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:43:06,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:43:06,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:43:06,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:43:06,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:43:06,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:43:06,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:43:06,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:43:06,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:43:06,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:43:06,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:43:06,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:43:06,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:43:06,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:43:06,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:43:06,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:43:06,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:43:06,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:43:06,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:43:06,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:43:06,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:43:06,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:43:06,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 12:43:06,361 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:43:06,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:43:06,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:43:06,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:43:06,367 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:43:06,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:43:06,367 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:43:06,367 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:43:06,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:43:06,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:43:06,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:43:06,368 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:43:06,368 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:43:06,369 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:43:06,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:43:06,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:43:06,369 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:43:06,369 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:43:06,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:43:06,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:43:06,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:43:06,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:43:06,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:43:06,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:43:06,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:43:06,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 12:43:06,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 12:43:06,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2019-11-28 12:43:06,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:43:06,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:43:06,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:43:06,765 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:43:06,766 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:43:06,766 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-11-28 12:43:06,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aef5c388/480de436958c44269631b96315f230a7/FLAG134d3a812 [2019-11-28 12:43:07,399 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:43:07,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-11-28 12:43:07,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aef5c388/480de436958c44269631b96315f230a7/FLAG134d3a812 [2019-11-28 12:43:07,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aef5c388/480de436958c44269631b96315f230a7 [2019-11-28 12:43:07,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:43:07,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:43:07,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:43:07,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:43:07,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:43:07,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:43:07" (1/1) ... [2019-11-28 12:43:07,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7f4e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07, skipping insertion in model container [2019-11-28 12:43:07,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:43:07" (1/1) ... [2019-11-28 12:43:07,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:43:07,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:43:08,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:43:08,344 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) [2019-11-28 12:43:08,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e0c1d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:08, skipping insertion in model container [2019-11-28 12:43:08,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:43:08,346 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 12:43:08,348 INFO L168 Benchmark]: Toolchain (without parser) took 602.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-28 12:43:08,349 INFO L168 Benchmark]: CDTParser took 1.18 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. [2019-11-28 12:43:08,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 12:43:08,352 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 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 599.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 20.6 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-f4d5612 [2019-11-28 12:43:10,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:43:10,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:43:10,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:43:10,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:43:10,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:43:10,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:43:10,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:43:10,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:43:10,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:43:10,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:43:10,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:43:10,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:43:10,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:43:10,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:43:10,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:43:10,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:43:10,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:43:10,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:43:10,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:43:10,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:43:10,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:43:10,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:43:10,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:43:10,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:43:10,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:43:10,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:43:10,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:43:10,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:43:10,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:43:10,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:43:10,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:43:10,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:43:10,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:43:10,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:43:10,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:43:10,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:43:10,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:43:10,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:43:10,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:43:10,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:43:10,238 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 12:43:10,254 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:43:10,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:43:10,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:43:10,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:43:10,256 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:43:10,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:43:10,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:43:10,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:43:10,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:43:10,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:43:10,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:43:10,257 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:43:10,257 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:43:10,257 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:43:10,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:43:10,258 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:43:10,258 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 12:43:10,258 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 12:43:10,258 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:43:10,259 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:43:10,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:43:10,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:43:10,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:43:10,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:43:10,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:43:10,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:43:10,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:43:10,261 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 12:43:10,261 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 12:43:10,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 12:43:10,261 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 -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2019-11-28 12:43:10,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:43:10,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:43:10,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:43:10,562 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:43:10,562 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:43:10,563 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-11-28 12:43:10,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d9bb5b3/f18c18601f484fb9bda5559b34f297d3/FLAG75e6604f1 [2019-11-28 12:43:11,171 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:43:11,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-11-28 12:43:11,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d9bb5b3/f18c18601f484fb9bda5559b34f297d3/FLAG75e6604f1 [2019-11-28 12:43:11,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d9bb5b3/f18c18601f484fb9bda5559b34f297d3 [2019-11-28 12:43:11,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:43:11,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:43:11,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:43:11,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:43:11,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:43:11,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:43:11" (1/1) ... [2019-11-28 12:43:11,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bff1f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:11, skipping insertion in model container [2019-11-28 12:43:11,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:43:11" (1/1) ... [2019-11-28 12:43:11,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:43:11,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:43:12,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:43:12,091 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 12:43:12,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:43:12,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:43:12,177 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 12:43:12,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:43:12,327 INFO L208 MainTranslator]: Completed translation [2019-11-28 12:43:12,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12 WrapperNode [2019-11-28 12:43:12,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:43:12,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 12:43:12,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 12:43:12,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 12:43:12,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (1/1) ... [2019-11-28 12:43:12,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (1/1) ... [2019-11-28 12:43:12,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (1/1) ... [2019-11-28 12:43:12,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (1/1) ... [2019-11-28 12:43:12,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (1/1) ... [2019-11-28 12:43:12,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (1/1) ... [2019-11-28 12:43:12,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (1/1) ... [2019-11-28 12:43:12,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 12:43:12,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 12:43:12,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 12:43:12,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 12:43:12,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (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 [2019-11-28 12:43:12,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 12:43:12,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 12:43:12,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-28 12:43:12,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 12:43:12,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 12:43:12,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 12:43:12,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 12:43:12,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 12:43:12,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 12:43:12,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-28 12:43:12,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-28 12:43:12,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-28 12:43:12,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-28 12:43:12,496 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-28 12:43:12,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-28 12:43:12,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-28 12:43:12,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-28 12:43:12,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-28 12:43:12,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-28 12:43:12,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-28 12:43:12,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-28 12:43:12,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-28 12:43:12,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-28 12:43:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-28 12:43:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-28 12:43:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-28 12:43:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-28 12:43:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-28 12:43:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-28 12:43:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-28 12:43:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-28 12:43:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-28 12:43:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-28 12:43:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-28 12:43:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-28 12:43:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-28 12:43:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-28 12:43:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-28 12:43:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-28 12:43:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-28 12:43:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-28 12:43:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-28 12:43:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2019-11-28 12:43:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2019-11-28 12:43:12,503 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-28 12:43:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 12:43:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-28 12:43:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-28 12:43:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-28 12:43:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 12:43:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 12:43:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 12:43:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 12:43:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 12:43:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 12:43:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 12:43:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 12:43:12,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 12:43:12,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 12:43:12,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 12:43:12,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 12:43:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 12:43:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 12:43:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 12:43:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 12:43:12,508 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 12:43:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 12:43:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 12:43:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 12:43:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 12:43:12,509 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 12:43:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 12:43:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 12:43:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 12:43:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 12:43:12,510 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 12:43:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 12:43:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 12:43:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 12:43:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 12:43:12,511 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 12:43:12,512 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 12:43:12,512 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 12:43:12,512 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 12:43:12,512 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 12:43:12,512 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 12:43:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 12:43:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 12:43:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 12:43:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 12:43:12,513 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 12:43:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 12:43:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 12:43:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 12:43:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 12:43:12,514 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 12:43:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 12:43:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 12:43:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 12:43:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 12:43:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 12:43:12,515 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 12:43:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 12:43:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 12:43:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 12:43:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 12:43:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 12:43:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 12:43:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 12:43:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 12:43:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 12:43:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 12:43:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 12:43:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 12:43:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 12:43:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 12:43:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 12:43:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 12:43:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 12:43:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 12:43:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 12:43:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 12:43:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 12:43:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 12:43:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 12:43:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 12:43:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 12:43:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 12:43:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 12:43:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 12:43:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 12:43:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 12:43:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 12:43:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 12:43:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 12:43:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 12:43:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 12:43:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 12:43:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 12:43:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 12:43:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 12:43:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 12:43:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 12:43:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 12:43:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-28 12:43:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-28 12:43:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-28 12:43:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-28 12:43:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-28 12:43:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 12:43:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-28 12:43:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-28 12:43:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-28 12:43:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 12:43:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-28 12:43:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-28 12:43:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-28 12:43:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 12:43:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-28 12:43:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-28 12:43:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-28 12:43:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-28 12:43:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-28 12:43:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-28 12:43:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 12:43:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-28 12:43:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-28 12:43:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-28 12:43:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-28 12:43:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-28 12:43:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 12:43:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 12:43:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-28 12:43:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-28 12:43:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-28 12:43:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-28 12:43:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-28 12:43:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-28 12:43:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-28 12:43:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-28 12:43:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-28 12:43:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-28 12:43:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-28 12:43:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-28 12:43:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-28 12:43:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-28 12:43:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-28 12:43:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-28 12:43:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-28 12:43:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2019-11-28 12:43:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2019-11-28 12:43:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-28 12:43:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 12:43:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 12:43:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 12:43:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 12:43:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 12:43:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 12:43:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-28 12:43:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-28 12:43:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-28 12:43:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-28 12:43:13,228 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-28 12:43:13,625 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-28 12:43:13,969 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 12:43:13,970 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 12:43:13,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:43:13 BoogieIcfgContainer [2019-11-28 12:43:13,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 12:43:13,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 12:43:13,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 12:43:13,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 12:43:13,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:43:11" (1/3) ... [2019-11-28 12:43:13,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3663d262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:43:13, skipping insertion in model container [2019-11-28 12:43:13,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:12" (2/3) ... [2019-11-28 12:43:13,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3663d262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:43:13, skipping insertion in model container [2019-11-28 12:43:13,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:43:13" (3/3) ... [2019-11-28 12:43:13,983 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_4.i [2019-11-28 12:43:13,993 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 12:43:14,006 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-28 12:43:14,019 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-28 12:43:14,042 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 12:43:14,043 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 12:43:14,043 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 12:43:14,043 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 12:43:14,043 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 12:43:14,044 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 12:43:14,044 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 12:43:14,044 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 12:43:14,072 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2019-11-28 12:43:14,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 12:43:14,086 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:14,087 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:14,088 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:14,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:14,095 INFO L82 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2019-11-28 12:43:14,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:14,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129130605] [2019-11-28 12:43:14,109 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 [2019-11-28 12:43:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:14,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:43:14,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:14,413 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 [2019-11-28 12:43:14,414 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:14,426 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:14,426 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:14,427 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:43:14,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:14,469 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:14,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129130605] [2019-11-28 12:43:14,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:14,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:43:14,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541410939] [2019-11-28 12:43:14,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:43:14,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:14,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:43:14,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:43:14,581 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 5 states. [2019-11-28 12:43:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:14,936 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2019-11-28 12:43:14,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:43:14,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 12:43:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:14,954 INFO L225 Difference]: With dead ends: 160 [2019-11-28 12:43:14,955 INFO L226 Difference]: Without dead ends: 157 [2019-11-28 12:43:14,957 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:43:14,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-28 12:43:15,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2019-11-28 12:43:15,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-28 12:43:15,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 162 transitions. [2019-11-28 12:43:15,017 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 162 transitions. Word has length 17 [2019-11-28 12:43:15,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:15,017 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 162 transitions. [2019-11-28 12:43:15,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:43:15,018 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2019-11-28 12:43:15,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 12:43:15,018 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:15,019 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:15,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 12:43:15,224 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:15,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:15,225 INFO L82 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2019-11-28 12:43:15,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:15,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867371347] [2019-11-28 12:43:15,227 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 [2019-11-28 12:43:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:15,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 12:43:15,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:15,390 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 [2019-11-28 12:43:15,390 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:15,398 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:15,398 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:15,399 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 12:43:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:15,450 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:15,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867371347] [2019-11-28 12:43:15,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:15,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-28 12:43:15,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016222808] [2019-11-28 12:43:15,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 12:43:15,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:15,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 12:43:15,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:43:15,797 INFO L87 Difference]: Start difference. First operand 151 states and 162 transitions. Second operand 10 states. [2019-11-28 12:43:16,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:16,533 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2019-11-28 12:43:16,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 12:43:16,535 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-28 12:43:16,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:16,537 INFO L225 Difference]: With dead ends: 156 [2019-11-28 12:43:16,537 INFO L226 Difference]: Without dead ends: 156 [2019-11-28 12:43:16,538 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-28 12:43:16,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-28 12:43:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2019-11-28 12:43:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-28 12:43:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2019-11-28 12:43:16,554 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 17 [2019-11-28 12:43:16,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:16,554 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2019-11-28 12:43:16,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 12:43:16,554 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2019-11-28 12:43:16,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 12:43:16,555 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:16,555 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:16,758 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 12:43:16,759 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:16,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:16,760 INFO L82 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2019-11-28 12:43:16,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:16,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270055017] [2019-11-28 12:43:16,762 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 [2019-11-28 12:43:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:16,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 12:43:16,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:16,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:16,936 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:16,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:16,992 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270055017] [2019-11-28 12:43:16,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:16,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-28 12:43:16,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658670440] [2019-11-28 12:43:16,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:43:16,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:16,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:43:16,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:43:16,994 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 5 states. [2019-11-28 12:43:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:17,033 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2019-11-28 12:43:17,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:43:17,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 12:43:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:17,037 INFO L225 Difference]: With dead ends: 150 [2019-11-28 12:43:17,037 INFO L226 Difference]: Without dead ends: 150 [2019-11-28 12:43:17,038 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:43:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-28 12:43:17,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2019-11-28 12:43:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-28 12:43:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2019-11-28 12:43:17,061 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 17 [2019-11-28 12:43:17,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:17,061 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2019-11-28 12:43:17,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:43:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2019-11-28 12:43:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 12:43:17,065 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:17,065 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:17,277 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 12:43:17,277 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:17,278 INFO L82 PathProgramCache]: Analyzing trace with hash 300911328, now seen corresponding path program 1 times [2019-11-28 12:43:17,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:17,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157217765] [2019-11-28 12:43:17,280 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 [2019-11-28 12:43:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:17,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:43:17,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:17,461 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:17,535 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157217765] [2019-11-28 12:43:17,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:17,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-28 12:43:17,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898756896] [2019-11-28 12:43:17,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:43:17,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:17,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:43:17,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:43:17,537 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 5 states. [2019-11-28 12:43:17,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:17,561 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2019-11-28 12:43:17,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:43:17,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-28 12:43:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:17,564 INFO L225 Difference]: With dead ends: 150 [2019-11-28 12:43:17,564 INFO L226 Difference]: Without dead ends: 150 [2019-11-28 12:43:17,564 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:43:17,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-28 12:43:17,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2019-11-28 12:43:17,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-28 12:43:17,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 155 transitions. [2019-11-28 12:43:17,579 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 155 transitions. Word has length 29 [2019-11-28 12:43:17,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:17,581 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 155 transitions. [2019-11-28 12:43:17,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:43:17,582 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2019-11-28 12:43:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 12:43:17,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:17,584 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:17,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 12:43:17,796 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:17,797 INFO L82 PathProgramCache]: Analyzing trace with hash -696161025, now seen corresponding path program 1 times [2019-11-28 12:43:17,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:17,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060059272] [2019-11-28 12:43:17,798 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 [2019-11-28 12:43:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:17,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 12:43:17,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:18,049 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:18,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:18,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060059272] [2019-11-28 12:43:18,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:18,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-28 12:43:18,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48197267] [2019-11-28 12:43:18,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 12:43:18,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:18,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 12:43:18,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-28 12:43:18,115 INFO L87 Difference]: Start difference. First operand 148 states and 155 transitions. Second operand 9 states. [2019-11-28 12:43:18,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:18,229 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2019-11-28 12:43:18,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 12:43:18,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-11-28 12:43:18,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:18,231 INFO L225 Difference]: With dead ends: 168 [2019-11-28 12:43:18,231 INFO L226 Difference]: Without dead ends: 168 [2019-11-28 12:43:18,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-28 12:43:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-28 12:43:18,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2019-11-28 12:43:18,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-28 12:43:18,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 169 transitions. [2019-11-28 12:43:18,241 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 169 transitions. Word has length 29 [2019-11-28 12:43:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:18,242 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 169 transitions. [2019-11-28 12:43:18,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 12:43:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 169 transitions. [2019-11-28 12:43:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-28 12:43:18,243 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:18,243 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:18,454 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 12:43:18,455 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:18,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:18,455 INFO L82 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2019-11-28 12:43:18,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:18,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396963590] [2019-11-28 12:43:18,456 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 [2019-11-28 12:43:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:18,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 12:43:18,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:18,625 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:18,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:18,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396963590] [2019-11-28 12:43:18,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:18,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-28 12:43:18,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092487166] [2019-11-28 12:43:18,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 12:43:18,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:18,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 12:43:18,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 12:43:18,687 INFO L87 Difference]: Start difference. First operand 162 states and 169 transitions. Second operand 6 states. [2019-11-28 12:43:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:18,739 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2019-11-28 12:43:18,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 12:43:18,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-28 12:43:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:18,742 INFO L225 Difference]: With dead ends: 168 [2019-11-28 12:43:18,743 INFO L226 Difference]: Without dead ends: 164 [2019-11-28 12:43:18,744 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-28 12:43:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-28 12:43:18,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2019-11-28 12:43:18,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-28 12:43:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2019-11-28 12:43:18,767 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 32 [2019-11-28 12:43:18,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:18,768 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2019-11-28 12:43:18,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 12:43:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2019-11-28 12:43:18,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-28 12:43:18,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:18,774 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:18,992 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 12:43:18,992 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:18,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:18,992 INFO L82 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2019-11-28 12:43:18,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:18,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372785381] [2019-11-28 12:43:18,993 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 [2019-11-28 12:43:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:19,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:43:19,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:19,194 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:19,345 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372785381] [2019-11-28 12:43:19,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 12:43:19,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-28 12:43:19,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561507934] [2019-11-28 12:43:19,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 12:43:19,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:19,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 12:43:19,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:43:19,347 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand 10 states. [2019-11-28 12:43:19,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:19,580 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2019-11-28 12:43:19,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 12:43:19,582 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-28 12:43:19,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:19,583 INFO L225 Difference]: With dead ends: 172 [2019-11-28 12:43:19,583 INFO L226 Difference]: Without dead ends: 168 [2019-11-28 12:43:19,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-28 12:43:19,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-28 12:43:19,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-11-28 12:43:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-28 12:43:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 175 transitions. [2019-11-28 12:43:19,592 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 175 transitions. Word has length 34 [2019-11-28 12:43:19,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:19,592 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 175 transitions. [2019-11-28 12:43:19,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 12:43:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 175 transitions. [2019-11-28 12:43:19,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-28 12:43:19,594 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:19,594 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:19,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 12:43:19,806 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:19,807 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2019-11-28 12:43:19,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:19,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596447860] [2019-11-28 12:43:19,809 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 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 [2019-11-28 12:43:19,979 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-28 12:43:19,979 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 12:43:19,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 12:43:19,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:19,992 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 [2019-11-28 12:43:19,993 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:19,997 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:19,997 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:19,998 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:43:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-28 12:43:20,160 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-28 12:43:20,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596447860] [2019-11-28 12:43:20,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:20,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2019-11-28 12:43:20,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014165429] [2019-11-28 12:43:20,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-28 12:43:20,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:20,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-28 12:43:20,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-11-28 12:43:20,263 INFO L87 Difference]: Start difference. First operand 168 states and 175 transitions. Second operand 12 states. [2019-11-28 12:43:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:21,348 INFO L93 Difference]: Finished difference Result 179 states and 185 transitions. [2019-11-28 12:43:21,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 12:43:21,348 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2019-11-28 12:43:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:21,349 INFO L225 Difference]: With dead ends: 179 [2019-11-28 12:43:21,349 INFO L226 Difference]: Without dead ends: 179 [2019-11-28 12:43:21,350 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-11-28 12:43:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-28 12:43:21,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2019-11-28 12:43:21,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-28 12:43:21,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2019-11-28 12:43:21,358 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 38 [2019-11-28 12:43:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:21,358 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2019-11-28 12:43:21,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-28 12:43:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2019-11-28 12:43:21,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-28 12:43:21,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:21,359 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:21,570 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-28 12:43:21,571 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:21,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:21,571 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2019-11-28 12:43:21,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:21,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784845889] [2019-11-28 12:43:21,573 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 [2019-11-28 12:43:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:21,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 12:43:21,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:21,788 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:22,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784845889] [2019-11-28 12:43:22,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 12:43:22,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-28 12:43:22,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281906068] [2019-11-28 12:43:22,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-28 12:43:22,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:22,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-28 12:43:22,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-28 12:43:22,142 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 18 states. [2019-11-28 12:43:23,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:23,164 INFO L93 Difference]: Finished difference Result 179 states and 192 transitions. [2019-11-28 12:43:23,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-28 12:43:23,164 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-28 12:43:23,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:23,166 INFO L225 Difference]: With dead ends: 179 [2019-11-28 12:43:23,166 INFO L226 Difference]: Without dead ends: 175 [2019-11-28 12:43:23,166 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-28 12:43:23,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-11-28 12:43:23,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-11-28 12:43:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-28 12:43:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 182 transitions. [2019-11-28 12:43:23,173 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 182 transitions. Word has length 38 [2019-11-28 12:43:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:23,173 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 182 transitions. [2019-11-28 12:43:23,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-28 12:43:23,173 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 182 transitions. [2019-11-28 12:43:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-28 12:43:23,174 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:23,174 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:23,381 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-11-28 12:43:23,382 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:23,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:23,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1347385061, now seen corresponding path program 1 times [2019-11-28 12:43:23,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:23,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511837639] [2019-11-28 12:43:23,384 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 [2019-11-28 12:43:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:23,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 12:43:23,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:23,606 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:23,670 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511837639] [2019-11-28 12:43:23,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:23,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-28 12:43:23,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825787987] [2019-11-28 12:43:23,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 12:43:23,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:23,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 12:43:23,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 12:43:23,672 INFO L87 Difference]: Start difference. First operand 175 states and 182 transitions. Second operand 7 states. [2019-11-28 12:43:23,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:23,727 INFO L93 Difference]: Finished difference Result 184 states and 191 transitions. [2019-11-28 12:43:23,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 12:43:23,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-28 12:43:23,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:23,729 INFO L225 Difference]: With dead ends: 184 [2019-11-28 12:43:23,729 INFO L226 Difference]: Without dead ends: 184 [2019-11-28 12:43:23,729 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-28 12:43:23,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-11-28 12:43:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 180. [2019-11-28 12:43:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-11-28 12:43:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 187 transitions. [2019-11-28 12:43:23,735 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 187 transitions. Word has length 40 [2019-11-28 12:43:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:23,736 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 187 transitions. [2019-11-28 12:43:23,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 12:43:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 187 transitions. [2019-11-28 12:43:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-28 12:43:23,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:23,737 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:23,948 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-11-28 12:43:23,949 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:23,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:23,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1156201438, now seen corresponding path program 1 times [2019-11-28 12:43:23,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:23,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669749413] [2019-11-28 12:43:23,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-28 12:43:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:24,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 12:43:24,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:24,089 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:24,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669749413] [2019-11-28 12:43:24,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:24,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 12:43:24,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687900466] [2019-11-28 12:43:24,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 12:43:24,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:24,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 12:43:24,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 12:43:24,258 INFO L87 Difference]: Start difference. First operand 180 states and 187 transitions. Second operand 3 states. [2019-11-28 12:43:24,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:24,476 INFO L93 Difference]: Finished difference Result 191 states and 197 transitions. [2019-11-28 12:43:24,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 12:43:24,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-11-28 12:43:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:24,479 INFO L225 Difference]: With dead ends: 191 [2019-11-28 12:43:24,479 INFO L226 Difference]: Without dead ends: 165 [2019-11-28 12:43:24,479 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 12:43:24,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-28 12:43:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 157. [2019-11-28 12:43:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-28 12:43:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2019-11-28 12:43:24,485 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 38 [2019-11-28 12:43:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:24,486 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2019-11-28 12:43:24,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 12:43:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2019-11-28 12:43:24,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-28 12:43:24,487 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:24,487 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:24,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-11-28 12:43:24,688 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:24,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:24,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1528032860, now seen corresponding path program 2 times [2019-11-28 12:43:24,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:24,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158483332] [2019-11-28 12:43:24,691 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 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 [2019-11-28 12:43:24,850 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-28 12:43:24,851 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 12:43:24,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-28 12:43:24,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:24,872 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 [2019-11-28 12:43:24,872 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:24,879 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:24,879 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:24,880 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 12:43:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-28 12:43:25,108 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-28 12:43:25,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158483332] [2019-11-28 12:43:25,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:25,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-28 12:43:25,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657931661] [2019-11-28 12:43:25,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-28 12:43:25,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:25,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-28 12:43:25,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-28 12:43:25,951 INFO L87 Difference]: Start difference. First operand 157 states and 163 transitions. Second operand 23 states. [2019-11-28 12:43:29,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:29,067 INFO L93 Difference]: Finished difference Result 156 states and 162 transitions. [2019-11-28 12:43:29,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-28 12:43:29,068 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-28 12:43:29,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:29,070 INFO L225 Difference]: With dead ends: 156 [2019-11-28 12:43:29,070 INFO L226 Difference]: Without dead ends: 156 [2019-11-28 12:43:29,071 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-28 12:43:29,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-28 12:43:29,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2019-11-28 12:43:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-28 12:43:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2019-11-28 12:43:29,076 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 46 [2019-11-28 12:43:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:29,076 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2019-11-28 12:43:29,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-28 12:43:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2019-11-28 12:43:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-28 12:43:29,078 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:29,078 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:29,289 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-11-28 12:43:29,289 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:29,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:29,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1472640772, now seen corresponding path program 1 times [2019-11-28 12:43:29,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:29,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638993537] [2019-11-28 12:43:29,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:29,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 12:43:29,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:29,637 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:29,761 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-28 12:43:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:43:30,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638993537] [2019-11-28 12:43:30,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 12:43:30,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-28 12:43:30,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249950] [2019-11-28 12:43:30,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-28 12:43:30,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:30,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-28 12:43:30,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2019-11-28 12:43:30,640 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand 34 states. [2019-11-28 12:43:31,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:31,394 INFO L93 Difference]: Finished difference Result 162 states and 168 transitions. [2019-11-28 12:43:31,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-28 12:43:31,396 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-28 12:43:31,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:31,400 INFO L225 Difference]: With dead ends: 162 [2019-11-28 12:43:31,400 INFO L226 Difference]: Without dead ends: 158 [2019-11-28 12:43:31,401 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2019-11-28 12:43:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-28 12:43:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-28 12:43:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-28 12:43:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 164 transitions. [2019-11-28 12:43:31,412 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 164 transitions. Word has length 51 [2019-11-28 12:43:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:31,412 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 164 transitions. [2019-11-28 12:43:31,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-28 12:43:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 164 transitions. [2019-11-28 12:43:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-28 12:43:31,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:31,414 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:31,625 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-11-28 12:43:31,626 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:31,626 INFO L82 PathProgramCache]: Analyzing trace with hash 680412260, now seen corresponding path program 2 times [2019-11-28 12:43:31,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:31,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012242460] [2019-11-28 12:43:31,635 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 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:31,802 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-28 12:43:31,802 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 12:43:31,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 12:43:31,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:31,818 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 [2019-11-28 12:43:31,818 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:31,820 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:31,820 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:31,820 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:43:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:31,966 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:32,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012242460] [2019-11-28 12:43:32,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:32,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2019-11-28 12:43:32,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77253587] [2019-11-28 12:43:32,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-28 12:43:32,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:32,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-28 12:43:32,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2019-11-28 12:43:32,051 INFO L87 Difference]: Start difference. First operand 158 states and 164 transitions. Second operand 12 states. [2019-11-28 12:43:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:32,967 INFO L93 Difference]: Finished difference Result 168 states and 173 transitions. [2019-11-28 12:43:32,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 12:43:32,967 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2019-11-28 12:43:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:32,969 INFO L225 Difference]: With dead ends: 168 [2019-11-28 12:43:32,969 INFO L226 Difference]: Without dead ends: 168 [2019-11-28 12:43:32,970 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-11-28 12:43:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-28 12:43:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2019-11-28 12:43:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-28 12:43:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2019-11-28 12:43:32,975 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 53 [2019-11-28 12:43:32,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:32,975 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2019-11-28 12:43:32,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-28 12:43:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2019-11-28 12:43:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-28 12:43:32,976 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:32,976 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:33,186 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-11-28 12:43:33,187 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:33,187 INFO L82 PathProgramCache]: Analyzing trace with hash 680412261, now seen corresponding path program 1 times [2019-11-28 12:43:33,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:33,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188101353] [2019-11-28 12:43:33,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:33,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-28 12:43:33,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:33,386 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 [2019-11-28 12:43:33,387 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:33,397 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:33,397 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:33,397 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 12:43:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:33,640 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:34,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188101353] [2019-11-28 12:43:34,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:34,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-28 12:43:34,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388640056] [2019-11-28 12:43:34,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-28 12:43:34,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:34,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-28 12:43:34,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-28 12:43:34,475 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand 23 states. [2019-11-28 12:43:37,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:37,581 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2019-11-28 12:43:37,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-28 12:43:37,582 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 53 [2019-11-28 12:43:37,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:37,583 INFO L225 Difference]: With dead ends: 154 [2019-11-28 12:43:37,584 INFO L226 Difference]: Without dead ends: 154 [2019-11-28 12:43:37,584 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-28 12:43:37,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-28 12:43:37,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-28 12:43:37,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-28 12:43:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2019-11-28 12:43:37,589 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 53 [2019-11-28 12:43:37,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:37,589 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2019-11-28 12:43:37,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-28 12:43:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2019-11-28 12:43:37,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-28 12:43:37,590 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:37,590 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:37,797 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2019-11-28 12:43:37,798 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:37,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:37,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2141011139, now seen corresponding path program 1 times [2019-11-28 12:43:37,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:37,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47418342] [2019-11-28 12:43:37,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:37,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 12:43:37,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:38,012 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:38,012 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:38,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47418342] [2019-11-28 12:43:38,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:38,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-28 12:43:38,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788435176] [2019-11-28 12:43:38,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 12:43:38,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:38,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 12:43:38,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-28 12:43:38,159 INFO L87 Difference]: Start difference. First operand 154 states and 160 transitions. Second operand 8 states. [2019-11-28 12:43:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:38,220 INFO L93 Difference]: Finished difference Result 156 states and 161 transitions. [2019-11-28 12:43:38,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 12:43:38,221 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2019-11-28 12:43:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:38,222 INFO L225 Difference]: With dead ends: 156 [2019-11-28 12:43:38,222 INFO L226 Difference]: Without dead ends: 154 [2019-11-28 12:43:38,222 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-28 12:43:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-28 12:43:38,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-28 12:43:38,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-28 12:43:38,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 159 transitions. [2019-11-28 12:43:38,229 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 159 transitions. Word has length 58 [2019-11-28 12:43:38,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:38,229 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 159 transitions. [2019-11-28 12:43:38,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 12:43:38,229 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 159 transitions. [2019-11-28 12:43:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-28 12:43:38,230 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:38,230 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:38,442 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2019-11-28 12:43:38,442 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:38,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:38,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1283825080, now seen corresponding path program 1 times [2019-11-28 12:43:38,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:38,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760659216] [2019-11-28 12:43:38,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:38,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 12:43:38,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:38,728 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:38,728 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:38,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 12:43:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:38,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760659216] [2019-11-28 12:43:38,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:38,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-28 12:43:38,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778224421] [2019-11-28 12:43:38,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-28 12:43:38,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:38,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-28 12:43:38,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-28 12:43:38,981 INFO L87 Difference]: Start difference. First operand 154 states and 159 transitions. Second operand 11 states. [2019-11-28 12:43:39,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:39,098 INFO L93 Difference]: Finished difference Result 158 states and 162 transitions. [2019-11-28 12:43:39,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 12:43:39,099 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2019-11-28 12:43:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:39,100 INFO L225 Difference]: With dead ends: 158 [2019-11-28 12:43:39,101 INFO L226 Difference]: Without dead ends: 154 [2019-11-28 12:43:39,102 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-28 12:43:39,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-28 12:43:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-28 12:43:39,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-28 12:43:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2019-11-28 12:43:39,115 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 63 [2019-11-28 12:43:39,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:39,116 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2019-11-28 12:43:39,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-28 12:43:39,116 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2019-11-28 12:43:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-28 12:43:39,117 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:39,117 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:39,330 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2019-11-28 12:43:39,331 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:39,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:39,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1405000591, now seen corresponding path program 1 times [2019-11-28 12:43:39,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:39,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674368449] [2019-11-28 12:43:39,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:39,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 12:43:39,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:39,561 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 [2019-11-28 12:43:39,562 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:39,564 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:39,564 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:39,564 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:43:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:39,780 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:39,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674368449] [2019-11-28 12:43:39,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:39,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2019-11-28 12:43:39,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932378705] [2019-11-28 12:43:39,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-28 12:43:39,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:39,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-28 12:43:39,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-11-28 12:43:39,976 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 17 states. [2019-11-28 12:43:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:41,349 INFO L93 Difference]: Finished difference Result 164 states and 167 transitions. [2019-11-28 12:43:41,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-28 12:43:41,350 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2019-11-28 12:43:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:41,352 INFO L225 Difference]: With dead ends: 164 [2019-11-28 12:43:41,352 INFO L226 Difference]: Without dead ends: 164 [2019-11-28 12:43:41,353 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 127 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2019-11-28 12:43:41,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-28 12:43:41,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2019-11-28 12:43:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-28 12:43:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2019-11-28 12:43:41,357 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 74 [2019-11-28 12:43:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:41,357 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2019-11-28 12:43:41,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-28 12:43:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2019-11-28 12:43:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-28 12:43:41,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:41,359 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:41,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2019-11-28 12:43:41,568 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:41,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:41,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1405000592, now seen corresponding path program 1 times [2019-11-28 12:43:41,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:41,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701428280] [2019-11-28 12:43:41,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:41,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-28 12:43:41,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:41,810 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 [2019-11-28 12:43:41,810 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:41,816 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:41,816 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:41,816 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 12:43:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:42,381 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:44,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701428280] [2019-11-28 12:43:44,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:44,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2019-11-28 12:43:44,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838699952] [2019-11-28 12:43:44,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-11-28 12:43:44,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:44,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-11-28 12:43:44,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2019-11-28 12:43:44,338 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 33 states. [2019-11-28 12:43:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:48,785 INFO L93 Difference]: Finished difference Result 150 states and 154 transitions. [2019-11-28 12:43:48,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-28 12:43:48,786 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 74 [2019-11-28 12:43:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:48,787 INFO L225 Difference]: With dead ends: 150 [2019-11-28 12:43:48,787 INFO L226 Difference]: Without dead ends: 150 [2019-11-28 12:43:48,788 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 112 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2019-11-28 12:43:48,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-28 12:43:48,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-28 12:43:48,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-28 12:43:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2019-11-28 12:43:48,792 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 74 [2019-11-28 12:43:48,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:48,793 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2019-11-28 12:43:48,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-11-28 12:43:48,793 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2019-11-28 12:43:48,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-11-28 12:43:48,794 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:48,794 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:49,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2019-11-28 12:43:49,006 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:49,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:49,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1519816277, now seen corresponding path program 1 times [2019-11-28 12:43:49,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:49,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808471695] [2019-11-28 12:43:49,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:49,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 12:43:49,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:49,340 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:49,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 12:43:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:49,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808471695] [2019-11-28 12:43:49,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:49,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-11-28 12:43:49,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797579270] [2019-11-28 12:43:49,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-28 12:43:49,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:49,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-28 12:43:49,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-28 12:43:49,558 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 14 states. [2019-11-28 12:43:49,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:49,705 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2019-11-28 12:43:49,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 12:43:49,706 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2019-11-28 12:43:49,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:49,707 INFO L225 Difference]: With dead ends: 156 [2019-11-28 12:43:49,707 INFO L226 Difference]: Without dead ends: 150 [2019-11-28 12:43:49,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-28 12:43:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-28 12:43:49,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-28 12:43:49,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-28 12:43:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 153 transitions. [2019-11-28 12:43:49,712 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 153 transitions. Word has length 85 [2019-11-28 12:43:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:49,713 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 153 transitions. [2019-11-28 12:43:49,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-28 12:43:49,713 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 153 transitions. [2019-11-28 12:43:49,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-28 12:43:49,714 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:49,715 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:49,927 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2019-11-28 12:43:49,928 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:49,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:49,928 INFO L82 PathProgramCache]: Analyzing trace with hash 2050797402, now seen corresponding path program 1 times [2019-11-28 12:43:49,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:49,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64365505] [2019-11-28 12:43:49,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:50,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-28 12:43:50,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:50,205 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 [2019-11-28 12:43:50,205 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:50,207 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:50,207 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:50,208 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:43:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:50,481 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:50,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64365505] [2019-11-28 12:43:50,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:50,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2019-11-28 12:43:50,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369584948] [2019-11-28 12:43:50,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-28 12:43:50,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:50,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-28 12:43:50,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-11-28 12:43:50,718 INFO L87 Difference]: Start difference. First operand 150 states and 153 transitions. Second operand 17 states. [2019-11-28 12:43:52,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:52,075 INFO L93 Difference]: Finished difference Result 164 states and 166 transitions. [2019-11-28 12:43:52,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-28 12:43:52,076 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 98 [2019-11-28 12:43:52,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:52,078 INFO L225 Difference]: With dead ends: 164 [2019-11-28 12:43:52,078 INFO L226 Difference]: Without dead ends: 164 [2019-11-28 12:43:52,078 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 173 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2019-11-28 12:43:52,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-28 12:43:52,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2019-11-28 12:43:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-28 12:43:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 151 transitions. [2019-11-28 12:43:52,087 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 151 transitions. Word has length 98 [2019-11-28 12:43:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:52,088 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 151 transitions. [2019-11-28 12:43:52,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-28 12:43:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 151 transitions. [2019-11-28 12:43:52,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-28 12:43:52,089 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:52,089 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:52,301 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3 [2019-11-28 12:43:52,301 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:52,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:52,302 INFO L82 PathProgramCache]: Analyzing trace with hash 2050797403, now seen corresponding path program 1 times [2019-11-28 12:43:52,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:52,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341258502] [2019-11-28 12:43:52,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:52,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-28 12:43:52,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:52,673 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 [2019-11-28 12:43:52,673 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:43:52,680 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:43:52,681 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:43:52,681 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 12:43:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:53,116 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:54,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341258502] [2019-11-28 12:43:54,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:54,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2019-11-28 12:43:54,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564327123] [2019-11-28 12:43:54,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-11-28 12:43:54,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:54,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-11-28 12:43:54,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2019-11-28 12:43:54,816 INFO L87 Difference]: Start difference. First operand 148 states and 151 transitions. Second operand 33 states. [2019-11-28 12:43:59,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:59,002 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2019-11-28 12:43:59,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-28 12:43:59,004 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 98 [2019-11-28 12:43:59,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:59,005 INFO L225 Difference]: With dead ends: 146 [2019-11-28 12:43:59,005 INFO L226 Difference]: Without dead ends: 146 [2019-11-28 12:43:59,006 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 158 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2019-11-28 12:43:59,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-28 12:43:59,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-11-28 12:43:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-28 12:43:59,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 149 transitions. [2019-11-28 12:43:59,011 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 149 transitions. Word has length 98 [2019-11-28 12:43:59,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:59,012 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 149 transitions. [2019-11-28 12:43:59,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-11-28 12:43:59,012 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 149 transitions. [2019-11-28 12:43:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-11-28 12:43:59,013 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:59,013 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:43:59,216 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3 [2019-11-28 12:43:59,217 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:43:59,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:43:59,217 INFO L82 PathProgramCache]: Analyzing trace with hash -797927977, now seen corresponding path program 1 times [2019-11-28 12:43:59,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:43:59,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065919113] [2019-11-28 12:43:59,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2019-11-28 12:43:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:43:59,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 12:43:59,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:43:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:59,519 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:43:59,823 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:43:59,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065919113] [2019-11-28 12:43:59,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:43:59,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2019-11-28 12:43:59,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111815216] [2019-11-28 12:43:59,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-28 12:43:59,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:43:59,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-28 12:43:59,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-28 12:43:59,824 INFO L87 Difference]: Start difference. First operand 146 states and 149 transitions. Second operand 11 states. [2019-11-28 12:43:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:43:59,916 INFO L93 Difference]: Finished difference Result 148 states and 150 transitions. [2019-11-28 12:43:59,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 12:43:59,917 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2019-11-28 12:43:59,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:43:59,918 INFO L225 Difference]: With dead ends: 148 [2019-11-28 12:43:59,918 INFO L226 Difference]: Without dead ends: 146 [2019-11-28 12:43:59,918 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-11-28 12:43:59,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-28 12:43:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-11-28 12:43:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-28 12:43:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 148 transitions. [2019-11-28 12:43:59,929 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 148 transitions. Word has length 96 [2019-11-28 12:43:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:43:59,929 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 148 transitions. [2019-11-28 12:43:59,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-28 12:43:59,930 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2019-11-28 12:43:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-28 12:43:59,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:43:59,931 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:00,139 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 mathsat -unsat_core_generation=3 [2019-11-28 12:44:00,140 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:00,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:00,140 INFO L82 PathProgramCache]: Analyzing trace with hash 693754465, now seen corresponding path program 1 times [2019-11-28 12:44:00,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:00,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248677108] [2019-11-28 12:44:00,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:00,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-28 12:44:00,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:00,493 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 [2019-11-28 12:44:00,494 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:00,496 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:00,496 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:00,497 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:44:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:44:01,108 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:44:01,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248677108] [2019-11-28 12:44:01,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:01,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2019-11-28 12:44:01,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179227223] [2019-11-28 12:44:01,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-28 12:44:01,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:01,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-28 12:44:01,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2019-11-28 12:44:01,460 INFO L87 Difference]: Start difference. First operand 146 states and 148 transitions. Second operand 21 states. [2019-11-28 12:44:03,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:03,133 INFO L93 Difference]: Finished difference Result 156 states and 157 transitions. [2019-11-28 12:44:03,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-28 12:44:03,134 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 111 [2019-11-28 12:44:03,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:03,135 INFO L225 Difference]: With dead ends: 156 [2019-11-28 12:44:03,136 INFO L226 Difference]: Without dead ends: 156 [2019-11-28 12:44:03,136 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 191 SyntacticMatches, 11 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2019-11-28 12:44:03,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-28 12:44:03,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 144. [2019-11-28 12:44:03,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-28 12:44:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 146 transitions. [2019-11-28 12:44:03,141 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 146 transitions. Word has length 111 [2019-11-28 12:44:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:03,141 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 146 transitions. [2019-11-28 12:44:03,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-28 12:44:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 146 transitions. [2019-11-28 12:44:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-28 12:44:03,142 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:03,143 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:03,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 mathsat -unsat_core_generation=3 [2019-11-28 12:44:03,353 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:03,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:03,354 INFO L82 PathProgramCache]: Analyzing trace with hash 693754466, now seen corresponding path program 1 times [2019-11-28 12:44:03,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:03,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603809189] [2019-11-28 12:44:03,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 26 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:03,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 46 conjunts are in the unsatisfiable core [2019-11-28 12:44:03,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:03,790 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 [2019-11-28 12:44:03,790 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:03,798 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:03,798 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:03,798 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 12:44:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:44:04,440 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:44:06,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603809189] [2019-11-28 12:44:06,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:06,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2019-11-28 12:44:06,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886400298] [2019-11-28 12:44:06,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-11-28 12:44:06,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:06,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-11-28 12:44:06,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2019-11-28 12:44:06,938 INFO L87 Difference]: Start difference. First operand 144 states and 146 transitions. Second operand 41 states. [2019-11-28 12:44:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:12,568 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2019-11-28 12:44:12,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-28 12:44:12,570 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 111 [2019-11-28 12:44:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:12,571 INFO L225 Difference]: With dead ends: 142 [2019-11-28 12:44:12,571 INFO L226 Difference]: Without dead ends: 142 [2019-11-28 12:44:12,572 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 174 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2019-11-28 12:44:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-11-28 12:44:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-11-28 12:44:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-28 12:44:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 144 transitions. [2019-11-28 12:44:12,576 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 144 transitions. Word has length 111 [2019-11-28 12:44:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:12,577 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 144 transitions. [2019-11-28 12:44:12,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-11-28 12:44:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 144 transitions. [2019-11-28 12:44:12,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-11-28 12:44:12,578 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:12,578 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:12,788 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 mathsat -unsat_core_generation=3 [2019-11-28 12:44:12,788 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:12,789 INFO L82 PathProgramCache]: Analyzing trace with hash 256905644, now seen corresponding path program 1 times [2019-11-28 12:44:12,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:12,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979141406] [2019-11-28 12:44:12,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 27 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:13,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-28 12:44:13,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:44:13,991 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:14,973 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:44:14,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979141406] [2019-11-28 12:44:14,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:14,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2019-11-28 12:44:14,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302855977] [2019-11-28 12:44:14,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-11-28 12:44:14,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:14,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-11-28 12:44:14,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2019-11-28 12:44:14,977 INFO L87 Difference]: Start difference. First operand 142 states and 144 transitions. Second operand 40 states. [2019-11-28 12:44:17,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:17,623 INFO L93 Difference]: Finished difference Result 141 states and 143 transitions. [2019-11-28 12:44:17,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-28 12:44:17,624 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 114 [2019-11-28 12:44:17,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:17,625 INFO L225 Difference]: With dead ends: 141 [2019-11-28 12:44:17,625 INFO L226 Difference]: Without dead ends: 141 [2019-11-28 12:44:17,626 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 182 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2019-11-28 12:44:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-28 12:44:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2019-11-28 12:44:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-11-28 12:44:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 143 transitions. [2019-11-28 12:44:17,629 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 143 transitions. Word has length 114 [2019-11-28 12:44:17,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:17,629 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 143 transitions. [2019-11-28 12:44:17,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-11-28 12:44:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 143 transitions. [2019-11-28 12:44:17,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-11-28 12:44:17,631 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:17,631 INFO L410 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:17,834 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 mathsat -unsat_core_generation=3 [2019-11-28 12:44:17,834 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:17,836 INFO L82 PathProgramCache]: Analyzing trace with hash -155348315, now seen corresponding path program 1 times [2019-11-28 12:44:17,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:17,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827404900] [2019-11-28 12:44:17,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 28 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:18,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 93 conjunts are in the unsatisfiable core [2019-11-28 12:44:18,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:18,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:18,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:18,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:18,358 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:18,358 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:18,430 INFO L343 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2019-11-28 12:44:18,431 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 30 treesize of output 36 [2019-11-28 12:44:18,431 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:18,447 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:18,448 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:18,448 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:36 [2019-11-28 12:44:18,689 INFO L508 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 12:44:18,693 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:18,694 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 12:44:18,694 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:22 [2019-11-28 12:44:20,195 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_1 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd |c_LDV_INIT_LIST_HEAD_#in~list.offset| (_ bv4 32)))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_1) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))) |c_#memory_int|)) is different from true [2019-11-28 12:44:20,348 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 30 [2019-11-28 12:44:20,349 INFO L343 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2019-11-28 12:44:20,349 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2019-11-28 12:44:20,350 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:20,382 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:20,383 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:20,383 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:40 [2019-11-28 12:44:22,123 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,124 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,130 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:22,131 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,131 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:22,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,132 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,133 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 12:44:22,134 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:22,135 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:22,144 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:22,144 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 192 treesize of output 164 [2019-11-28 12:44:22,148 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:22,194 INFO L588 ElimStorePlain]: treesize reduction 78, result has 47.3 percent of original size [2019-11-28 12:44:22,194 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:22,194 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:195, output treesize:70 [2019-11-28 12:44:23,862 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:23,862 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 60 [2019-11-28 12:44:23,863 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:23,865 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:23,865 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:23,865 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:47 [2019-11-28 12:44:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-11-28 12:44:24,006 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:29,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 12:44:29,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 516 treesize of output 406 [2019-11-28 12:44:29,928 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,929 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,929 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,930 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,930 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,931 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,938 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,939 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,939 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,940 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,940 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,941 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,948 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,949 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,949 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,950 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,959 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,960 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 12:44:29,962 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 45 [2019-11-28 12:44:29,965 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:29,966 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:29,967 INFO L508 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:29,998 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:29,999 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-28 12:44:29,999 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:1246, output treesize:730 [2019-11-28 12:44:33,026 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 mathsat -unsat_core_generation=3 [2019-11-28 12:44:33,028 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-28 12:44:33,034 INFO L168 Benchmark]: Toolchain (without parser) took 81580.92 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 539.0 MB). Free memory was 951.0 MB in the beginning and 1.5 GB in the end (delta: -508.3 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:33,035 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:44:33,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:33,036 INFO L168 Benchmark]: Boogie Preprocessor took 105.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:33,036 INFO L168 Benchmark]: RCFGBuilder took 1536.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:33,036 INFO L168 Benchmark]: TraceAbstraction took 79059.52 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 385.9 MB). Free memory was 986.4 MB in the beginning and 1.5 GB in the end (delta: -472.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:44:33,038 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 873.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 105.94 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 1536.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 79059.52 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 385.9 MB). Free memory was 986.4 MB in the beginning and 1.5 GB in the end (delta: -472.8 MB). There was no memory consumed. 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...