./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 ............................................................................................................................. 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 -Xmx15G -Xms4m -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_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:02:14,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:14,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:14,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:14,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:14,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:14,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:14,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:14,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:14,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:14,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:14,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:14,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:14,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:14,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:14,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:14,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:14,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:14,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:14,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:14,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:14,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:14,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:14,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:14,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:14,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:14,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:14,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:14,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:14,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:14,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:14,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:14,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:14,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:14,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:14,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:14,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:14,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:14,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:14,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:14,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:14,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:02:14,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:14,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:14,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:14,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:14,383 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:14,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:14,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:14,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:14,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:14,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:14,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:14,386 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:14,386 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:14,386 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:14,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:14,387 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:14,387 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:14,387 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:14,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:14,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:14,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:14,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:14,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:14,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:14,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:14,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:02:14,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:02:14,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:14,390 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 -> d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 [2020-10-20 06:02:14,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:14,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:14,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:14,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:14,610 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:14,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2020-10-20 06:02:14,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b51d78bb/c121112aba8a4fd2b9778c0f202c5bec/FLAGe35e4f833 [2020-10-20 06:02:15,251 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:15,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2020-10-20 06:02:15,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b51d78bb/c121112aba8a4fd2b9778c0f202c5bec/FLAGe35e4f833 [2020-10-20 06:02:15,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b51d78bb/c121112aba8a4fd2b9778c0f202c5bec [2020-10-20 06:02:15,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:15,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:15,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:15,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:15,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:15,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:15" (1/1) ... [2020-10-20 06:02:15,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b00f691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:15, skipping insertion in model container [2020-10-20 06:02:15,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:15" (1/1) ... [2020-10-20 06:02:15,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:15,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:16,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:16,135 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-20 06:02:16,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@20f8ed0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:16, skipping insertion in model container [2020-10-20 06:02:16,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:16,137 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 06:02:16,140 INFO L168 Benchmark]: Toolchain (without parser) took 638.60 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 12.7 MB in the beginning and 21.3 MB in the end (delta: -8.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:16,142 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 8.4 MB in the beginning and 8.3 MB in the end (delta: 43.4 kB). Peak memory consumption was 43.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:02:16,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.58 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 11.9 MB in the beginning and 21.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:16,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.6 MB. Free memory was 8.4 MB in the beginning and 8.3 MB in the end (delta: 43.4 kB). Peak memory consumption was 43.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 631.58 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 11.9 MB in the beginning and 21.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:02:18,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:02:18,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:02:18,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:02:18,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:02:18,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:02:18,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:02:18,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:02:18,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:02:18,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:02:18,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:02:18,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:02:18,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:02:18,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:02:18,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:02:18,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:02:18,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:02:18,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:02:18,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:02:18,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:02:18,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:02:18,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:02:18,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:02:18,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:02:18,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:02:18,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:02:18,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:02:18,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:02:18,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:02:18,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:02:18,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:02:18,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:02:18,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:02:18,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:02:18,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:02:18,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:02:18,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:02:18,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:02:18,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:02:18,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:02:18,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:02:18,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 06:02:18,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:02:18,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:02:18,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:02:18,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:02:18,224 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:02:18,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:02:18,225 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:02:18,225 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:02:18,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:02:18,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:02:18,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:02:18,227 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:02:18,227 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:02:18,228 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:02:18,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:02:18,228 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:02:18,229 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 06:02:18,229 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 06:02:18,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:02:18,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:02:18,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:02:18,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:02:18,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:02:18,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:02:18,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:18,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:02:18,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:02:18,231 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 06:02:18,232 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 06:02:18,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:02:18,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 06:02:18,232 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 -> d88c88b73ce2cba22159e6d055a27f0c7e4ebba5 [2020-10-20 06:02:18,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:02:18,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:02:18,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:02:18,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:02:18,489 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:02:18,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2020-10-20 06:02:18,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808831d63/5d87dd824e174b688778c53d06288063/FLAGb96e23b39 [2020-10-20 06:02:19,143 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:02:19,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2020-10-20 06:02:19,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808831d63/5d87dd824e174b688778c53d06288063/FLAGb96e23b39 [2020-10-20 06:02:19,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808831d63/5d87dd824e174b688778c53d06288063 [2020-10-20 06:02:19,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:02:19,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:02:19,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:19,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:02:19,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:02:19,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:19" (1/1) ... [2020-10-20 06:02:19,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a102e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:19, skipping insertion in model container [2020-10-20 06:02:19,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:02:19" (1/1) ... [2020-10-20 06:02:19,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:02:19,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:19,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:20,001 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 06:02:20,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:02:20,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:20,083 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:02:20,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:02:20,234 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:02:20,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20 WrapperNode [2020-10-20 06:02:20,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:02:20,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:02:20,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:02:20,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:02:20,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... [2020-10-20 06:02:20,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... [2020-10-20 06:02:20,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... [2020-10-20 06:02:20,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... [2020-10-20 06:02:20,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... [2020-10-20 06:02:20,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... [2020-10-20 06:02:20,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... [2020-10-20 06:02:20,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:02:20,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:02:20,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:02:20,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:02:20,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:02:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:02:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:02:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 06:02:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 06:02:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 06:02:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 06:02:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 06:02:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-20 06:02:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-20 06:02:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-20 06:02:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-20 06:02:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-20 06:02:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-20 06:02:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-20 06:02:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-20 06:02:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-20 06:02:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-20 06:02:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-20 06:02:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-20 06:02:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-20 06:02:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-20 06:02:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-20 06:02:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-20 06:02:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-20 06:02:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-20 06:02:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-20 06:02:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-20 06:02:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-20 06:02:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-20 06:02:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-20 06:02:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-20 06:02:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-20 06:02:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-20 06:02:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-20 06:02:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-20 06:02:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-20 06:02:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-20 06:02:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-20 06:02:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-20 06:02:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-20 06:02:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:02:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-20 06:02:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-20 06:02:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-20 06:02:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:02:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:02:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:02:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:02:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:02:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:02:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:02:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:02:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:02:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:02:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:02:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:02:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:02:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:02:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:02:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:02:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 06:02:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 06:02:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 06:02:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 06:02:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 06:02:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:02:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:02:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:02:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:02:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:02:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:02:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:02:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:02:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:02:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:02:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:02:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:02:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:02:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:02:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:02:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:02:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:02:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:02:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:02:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:02:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:02:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:02:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:02:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:02:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:02:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:02:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:02:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:02:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:02:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:02:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:02:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:02:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:02:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:02:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:02:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:02:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:02:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:02:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:02:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:02:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:02:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:02:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:02:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:02:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:02:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:02:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:02:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:02:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:02:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:02:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:02:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:02:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:02:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:02:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:02:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:02:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:02:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:02:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:02:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:02:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:02:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:02:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:02:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:02:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:02:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:02:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:02:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:02:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:02:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:02:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:02:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:02:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:02:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:02:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:02:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:02:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:02:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:02:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:02:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:02:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:02:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:02:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:02:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:02:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:02:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:02:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-20 06:02:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:02:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-20 06:02:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-20 06:02:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-20 06:02:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-20 06:02:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-20 06:02:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:02:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-20 06:02:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-20 06:02:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-20 06:02:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:02:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-20 06:02:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-20 06:02:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-20 06:02:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:02:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-20 06:02:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-20 06:02:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-20 06:02:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-20 06:02:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-20 06:02:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-20 06:02:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:02:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-20 06:02:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-20 06:02:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-20 06:02:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-20 06:02:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-20 06:02:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 06:02:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 06:02:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-20 06:02:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-20 06:02:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-20 06:02:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-20 06:02:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-20 06:02:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-20 06:02:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-20 06:02:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-20 06:02:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-20 06:02:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-20 06:02:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-20 06:02:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-20 06:02:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-20 06:02:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-20 06:02:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-20 06:02:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-20 06:02:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-20 06:02:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-20 06:02:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:02:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:02:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:02:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 06:02:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:02:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:02:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-20 06:02:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-20 06:02:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-20 06:02:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-20 06:02:21,146 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:21,525 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-20 06:02:21,850 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:02:21,851 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:02:21,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:21 BoogieIcfgContainer [2020-10-20 06:02:21,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:02:21,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:02:21,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:02:21,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:02:21,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:02:19" (1/3) ... [2020-10-20 06:02:21,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cdea36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:21, skipping insertion in model container [2020-10-20 06:02:21,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:02:20" (2/3) ... [2020-10-20 06:02:21,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cdea36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:02:21, skipping insertion in model container [2020-10-20 06:02:21,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:21" (3/3) ... [2020-10-20 06:02:21,862 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-1.i [2020-10-20 06:02:21,876 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:02:21,884 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2020-10-20 06:02:21,899 INFO L253 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2020-10-20 06:02:21,920 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:02:21,920 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:02:21,920 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:02:21,920 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:02:21,920 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:02:21,921 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:02:21,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:02:21,921 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:02:21,961 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-20 06:02:21,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:21,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:21,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:21,973 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:21,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:21,979 INFO L82 PathProgramCache]: Analyzing trace with hash -580210168, now seen corresponding path program 1 times [2020-10-20 06:02:21,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:21,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128618202] [2020-10-20 06:02:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:22,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:22,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:22,282 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:02:22,282 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:22,291 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:22,291 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:22,292 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:22,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:22,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128618202] [2020-10-20 06:02:22,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:22,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 06:02:22,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40363720] [2020-10-20 06:02:22,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:22,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:22,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:22,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:22,422 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 5 states. [2020-10-20 06:02:22,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:22,779 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-10-20 06:02:22,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:22,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:22,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:22,797 INFO L225 Difference]: With dead ends: 156 [2020-10-20 06:02:22,797 INFO L226 Difference]: Without dead ends: 153 [2020-10-20 06:02:22,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-20 06:02:22,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2020-10-20 06:02:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-20 06:02:22,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2020-10-20 06:02:22,861 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 17 [2020-10-20 06:02:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:22,862 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2020-10-20 06:02:22,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:22,862 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2020-10-20 06:02:22,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:22,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:22,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:23,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 06:02:23,079 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:23,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:23,080 INFO L82 PathProgramCache]: Analyzing trace with hash -580210167, now seen corresponding path program 1 times [2020-10-20 06:02:23,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:23,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208614973] [2020-10-20 06:02:23,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:23,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:23,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:23,377 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:02:23,377 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:23,385 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:23,386 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:23,387 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:23,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:23,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208614973] [2020-10-20 06:02:23,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:23,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 06:02:23,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988486321] [2020-10-20 06:02:23,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:23,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:23,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:23,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:23,796 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 10 states. [2020-10-20 06:02:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:24,528 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2020-10-20 06:02:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:24,530 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-20 06:02:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:24,532 INFO L225 Difference]: With dead ends: 152 [2020-10-20 06:02:24,532 INFO L226 Difference]: Without dead ends: 152 [2020-10-20 06:02:24,533 INFO L677 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 [2020-10-20 06:02:24,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-20 06:02:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2020-10-20 06:02:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-20 06:02:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2020-10-20 06:02:24,547 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 17 [2020-10-20 06:02:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:24,547 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2020-10-20 06:02:24,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2020-10-20 06:02:24,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:02:24,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:24,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:24,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 06:02:24,760 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:24,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:24,761 INFO L82 PathProgramCache]: Analyzing trace with hash -551581017, now seen corresponding path program 1 times [2020-10-20 06:02:24,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:24,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496173984] [2020-10-20 06:02:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:24,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:24,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:24,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:24,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496173984] [2020-10-20 06:02:24,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:24,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:24,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670781874] [2020-10-20 06:02:24,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:24,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:24,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:24,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:24,978 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 5 states. [2020-10-20 06:02:25,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:25,016 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2020-10-20 06:02:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:25,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:02:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:25,021 INFO L225 Difference]: With dead ends: 146 [2020-10-20 06:02:25,021 INFO L226 Difference]: Without dead ends: 146 [2020-10-20 06:02:25,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:25,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-20 06:02:25,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2020-10-20 06:02:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-20 06:02:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2020-10-20 06:02:25,043 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 17 [2020-10-20 06:02:25,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:25,044 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2020-10-20 06:02:25,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2020-10-20 06:02:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 06:02:25,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:25,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:25,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 06:02:25,266 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:25,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:25,267 INFO L82 PathProgramCache]: Analyzing trace with hash 180429038, now seen corresponding path program 1 times [2020-10-20 06:02:25,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:25,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945885779] [2020-10-20 06:02:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:25,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:25,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:25,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:25,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:25,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945885779] [2020-10-20 06:02:25,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:25,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:02:25,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543123309] [2020-10-20 06:02:25,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:02:25,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:25,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:02:25,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:25,512 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand 5 states. [2020-10-20 06:02:25,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:25,535 INFO L93 Difference]: Finished difference Result 146 states and 153 transitions. [2020-10-20 06:02:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:02:25,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 06:02:25,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:25,537 INFO L225 Difference]: With dead ends: 146 [2020-10-20 06:02:25,537 INFO L226 Difference]: Without dead ends: 146 [2020-10-20 06:02:25,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:02:25,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-20 06:02:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2020-10-20 06:02:25,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-20 06:02:25,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 151 transitions. [2020-10-20 06:02:25,548 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 151 transitions. Word has length 27 [2020-10-20 06:02:25,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:25,548 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 151 transitions. [2020-10-20 06:02:25,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:02:25,549 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2020-10-20 06:02:25,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 06:02:25,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:25,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:25,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 06:02:25,772 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:25,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:25,772 INFO L82 PathProgramCache]: Analyzing trace with hash -330105139, now seen corresponding path program 1 times [2020-10-20 06:02:25,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:25,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023964321] [2020-10-20 06:02:25,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:25,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:25,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:25,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023964321] [2020-10-20 06:02:26,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:26,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-20 06:02:26,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452334417] [2020-10-20 06:02:26,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:02:26,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:26,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:02:26,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:26,038 INFO L87 Difference]: Start difference. First operand 144 states and 151 transitions. Second operand 7 states. [2020-10-20 06:02:26,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:26,117 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2020-10-20 06:02:26,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:02:26,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-20 06:02:26,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:26,123 INFO L225 Difference]: With dead ends: 160 [2020-10-20 06:02:26,124 INFO L226 Difference]: Without dead ends: 160 [2020-10-20 06:02:26,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:02:26,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-20 06:02:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2020-10-20 06:02:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-20 06:02:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2020-10-20 06:02:26,146 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 27 [2020-10-20 06:02:26,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:26,146 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2020-10-20 06:02:26,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:02:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2020-10-20 06:02:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-20 06:02:26,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:26,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:26,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 06:02:26,365 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:26,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:26,366 INFO L82 PathProgramCache]: Analyzing trace with hash 317366699, now seen corresponding path program 1 times [2020-10-20 06:02:26,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:26,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980531807] [2020-10-20 06:02:26,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:26,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:02:26,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:26,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980531807] [2020-10-20 06:02:26,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:26,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 06:02:26,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645186697] [2020-10-20 06:02:26,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:02:26,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:26,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:02:26,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:02:26,578 INFO L87 Difference]: Start difference. First operand 153 states and 160 transitions. Second operand 6 states. [2020-10-20 06:02:26,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:26,638 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2020-10-20 06:02:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:02:26,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-20 06:02:26,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:26,648 INFO L225 Difference]: With dead ends: 159 [2020-10-20 06:02:26,648 INFO L226 Difference]: Without dead ends: 155 [2020-10-20 06:02:26,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:26,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-20 06:02:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-10-20 06:02:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-20 06:02:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2020-10-20 06:02:26,674 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 32 [2020-10-20 06:02:26,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:26,674 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 162 transitions. [2020-10-20 06:02:26,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:02:26,675 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 162 transitions. [2020-10-20 06:02:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:02:26,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:26,676 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:26,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 06:02:26,896 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:26,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:26,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1135828661, now seen corresponding path program 1 times [2020-10-20 06:02:26,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:26,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544794377] [2020-10-20 06:02:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:27,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:27,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:27,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544794377] [2020-10-20 06:02:27,065 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:27,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [742289649] [2020-10-20 06:02:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:27,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:02:27,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:27,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:27,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:02:27,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-20 06:02:27,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602402678] [2020-10-20 06:02:27,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:02:27,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:27,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:02:27,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:02:27,517 INFO L87 Difference]: Start difference. First operand 155 states and 162 transitions. Second operand 10 states. [2020-10-20 06:02:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:27,756 INFO L93 Difference]: Finished difference Result 163 states and 172 transitions. [2020-10-20 06:02:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:02:27,757 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-20 06:02:27,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:27,759 INFO L225 Difference]: With dead ends: 163 [2020-10-20 06:02:27,759 INFO L226 Difference]: Without dead ends: 159 [2020-10-20 06:02:27,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:02:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-20 06:02:27,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-10-20 06:02:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-20 06:02:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2020-10-20 06:02:27,766 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 34 [2020-10-20 06:02:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:27,767 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2020-10-20 06:02:27,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:02:27,767 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2020-10-20 06:02:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-20 06:02:27,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:27,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:28,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk,8 mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,180 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:28,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:28,180 INFO L82 PathProgramCache]: Analyzing trace with hash 591246760, now seen corresponding path program 1 times [2020-10-20 06:02:28,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:28,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209810124] [2020-10-20 06:02:28,182 INFO L95 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 [2020-10-20 06:02:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:28,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:28,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209810124] [2020-10-20 06:02:28,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:28,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-20 06:02:28,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975076327] [2020-10-20 06:02:28,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:02:28,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:28,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:02:28,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:02:28,426 INFO L87 Difference]: Start difference. First operand 159 states and 166 transitions. Second operand 7 states. [2020-10-20 06:02:28,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:28,476 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2020-10-20 06:02:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:02:28,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-20 06:02:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:28,478 INFO L225 Difference]: With dead ends: 169 [2020-10-20 06:02:28,478 INFO L226 Difference]: Without dead ends: 169 [2020-10-20 06:02:28,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:02:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-20 06:02:28,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2020-10-20 06:02:28,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-20 06:02:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 172 transitions. [2020-10-20 06:02:28,485 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 172 transitions. Word has length 36 [2020-10-20 06:02:28,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:28,486 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 172 transitions. [2020-10-20 06:02:28,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:02:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 172 transitions. [2020-10-20 06:02:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:02:28,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:28,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:28,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,701 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:28,702 INFO L82 PathProgramCache]: Analyzing trace with hash -212953728, now seen corresponding path program 1 times [2020-10-20 06:02:28,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:28,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652335608] [2020-10-20 06:02:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:28,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:02:28,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:02:28,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652335608] [2020-10-20 06:02:28,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:28,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 06:02:28,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226638153] [2020-10-20 06:02:28,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:02:28,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:28,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:02:28,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:02:28,977 INFO L87 Difference]: Start difference. First operand 165 states and 172 transitions. Second operand 3 states. [2020-10-20 06:02:29,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:29,174 INFO L93 Difference]: Finished difference Result 176 states and 182 transitions. [2020-10-20 06:02:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:02:29,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-10-20 06:02:29,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:29,176 INFO L225 Difference]: With dead ends: 176 [2020-10-20 06:02:29,176 INFO L226 Difference]: Without dead ends: 154 [2020-10-20 06:02:29,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:02:29,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-20 06:02:29,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 146. [2020-10-20 06:02:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-20 06:02:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 152 transitions. [2020-10-20 06:02:29,185 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 152 transitions. Word has length 34 [2020-10-20 06:02:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:29,185 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 152 transitions. [2020-10-20 06:02:29,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:02:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 152 transitions. [2020-10-20 06:02:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:02:29,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:29,189 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:29,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-20 06:02:29,401 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:29,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:29,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345269, now seen corresponding path program 2 times [2020-10-20 06:02:29,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:29,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159441250] [2020-10-20 06:02:29,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 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 [2020-10-20 06:02:29,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:02:29,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:02:29,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:02:29,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:29,546 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:02:29,546 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:29,548 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:29,548 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:29,549 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:29,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:29,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159441250] [2020-10-20 06:02:29,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:29,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:02:29,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074168727] [2020-10-20 06:02:29,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:02:29,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:29,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:02:29,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:02:29,750 INFO L87 Difference]: Start difference. First operand 146 states and 152 transitions. Second operand 12 states. [2020-10-20 06:02:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:30,641 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2020-10-20 06:02:30,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:02:30,641 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-20 06:02:30,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:30,642 INFO L225 Difference]: With dead ends: 157 [2020-10-20 06:02:30,643 INFO L226 Difference]: Without dead ends: 157 [2020-10-20 06:02:30,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:02:30,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-20 06:02:30,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2020-10-20 06:02:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-20 06:02:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2020-10-20 06:02:30,648 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 38 [2020-10-20 06:02:30,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:30,649 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2020-10-20 06:02:30,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:02:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2020-10-20 06:02:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:02:30,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:30,650 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:30,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-20 06:02:30,857 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:30,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:30,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1203345268, now seen corresponding path program 1 times [2020-10-20 06:02:30,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:30,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934117131] [2020-10-20 06:02:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-20 06:02:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:31,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:31,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:31,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934117131] [2020-10-20 06:02:31,029 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:31,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1683207816] [2020-10-20 06:02:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:31,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:31,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:31,418 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:31,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286817134] [2020-10-20 06:02:31,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:31,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 06:02:31,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:31,577 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:02:31,578 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:31,584 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:31,585 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:31,585 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:31,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:33,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:33,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:02:33,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778532764] [2020-10-20 06:02:33,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:02:33,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:33,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:02:33,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-10-20 06:02:33,105 INFO L87 Difference]: Start difference. First operand 145 states and 151 transitions. Second operand 23 states. [2020-10-20 06:02:35,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:35,692 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2020-10-20 06:02:35,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:02:35,693 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 38 [2020-10-20 06:02:35,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:35,695 INFO L225 Difference]: With dead ends: 144 [2020-10-20 06:02:35,695 INFO L226 Difference]: Without dead ends: 144 [2020-10-20 06:02:35,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-10-20 06:02:35,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-20 06:02:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-20 06:02:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-20 06:02:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 150 transitions. [2020-10-20 06:02:35,701 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 150 transitions. Word has length 38 [2020-10-20 06:02:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:35,701 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 150 transitions. [2020-10-20 06:02:35,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:02:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 150 transitions. [2020-10-20 06:02:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:02:35,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:35,703 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:36,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3,14 cvc4 --incremental --print-success --lang smt --rewrite-divk,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:36,305 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:36,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:36,306 INFO L82 PathProgramCache]: Analyzing trace with hash -352957932, now seen corresponding path program 1 times [2020-10-20 06:02:36,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:36,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288759082] [2020-10-20 06:02:36,308 INFO L95 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 [2020-10-20 06:02:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:36,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:36,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:36,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288759082] [2020-10-20 06:02:36,505 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:36,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [276941883] [2020-10-20 06:02:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:36,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:36,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:36,844 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:36,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104756121] [2020-10-20 06:02:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:36,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:02:36,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:36,993 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:02:36,994 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:36,996 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:36,997 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:36,997 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:02:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:37,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:37,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:37,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-20 06:02:37,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969583187] [2020-10-20 06:02:37,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:02:37,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:37,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:02:37,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:02:37,336 INFO L87 Difference]: Start difference. First operand 144 states and 150 transitions. Second operand 12 states. [2020-10-20 06:02:38,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:38,198 INFO L93 Difference]: Finished difference Result 154 states and 159 transitions. [2020-10-20 06:02:38,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:02:38,198 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-20 06:02:38,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:38,200 INFO L225 Difference]: With dead ends: 154 [2020-10-20 06:02:38,200 INFO L226 Difference]: Without dead ends: 154 [2020-10-20 06:02:38,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-10-20 06:02:38,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-20 06:02:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 142. [2020-10-20 06:02:38,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-20 06:02:38,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 148 transitions. [2020-10-20 06:02:38,206 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 148 transitions. Word has length 43 [2020-10-20 06:02:38,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:38,206 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 148 transitions. [2020-10-20 06:02:38,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:02:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 148 transitions. [2020-10-20 06:02:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-20 06:02:38,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:38,208 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:38,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:38,821 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-20 06:02:38,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:38,822 INFO L82 PathProgramCache]: Analyzing trace with hash -352957931, now seen corresponding path program 1 times [2020-10-20 06:02:38,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:38,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611925848] [2020-10-20 06:02:38,824 INFO L95 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 [2020-10-20 06:02:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:38,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:38,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:38,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611925848] [2020-10-20 06:02:38,996 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:38,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [129957279] [2020-10-20 06:02:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:39,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:39,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:39,312 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:39,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867969343] [2020-10-20 06:02:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:39,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-20 06:02:39,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:39,465 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:02:39,466 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:02:39,490 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:02:39,490 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:02:39,490 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:02:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:39,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:02:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-20 06:02:40,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:40,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-20 06:02:40,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192875619] [2020-10-20 06:02:40,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-20 06:02:40,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:02:40,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-20 06:02:40,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2020-10-20 06:02:40,700 INFO L87 Difference]: Start difference. First operand 142 states and 148 transitions. Second operand 23 states. [2020-10-20 06:02:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:02:42,901 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2020-10-20 06:02:42,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:02:42,902 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2020-10-20 06:02:42,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:02:42,903 INFO L225 Difference]: With dead ends: 140 [2020-10-20 06:02:42,903 INFO L226 Difference]: Without dead ends: 140 [2020-10-20 06:02:42,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2020-10-20 06:02:42,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-20 06:02:42,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-20 06:02:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-20 06:02:42,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 146 transitions. [2020-10-20 06:02:42,909 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 146 transitions. Word has length 43 [2020-10-20 06:02:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:02:42,910 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 146 transitions. [2020-10-20 06:02:42,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-20 06:02:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 146 transitions. [2020-10-20 06:02:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-20 06:02:42,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:02:42,911 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:02:43,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:43,515 INFO L429 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]=== [2020-10-20 06:02:43,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:02:43,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1068103371, now seen corresponding path program 1 times [2020-10-20 06:02:43,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:02:43,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014694831] [2020-10-20 06:02:43,517 INFO L95 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 [2020-10-20 06:02:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:43,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 06:02:43,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:43,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014694831] [2020-10-20 06:02:43,696 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:43,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [430782096] [2020-10-20 06:02:43,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:43,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:43,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:43,998 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:43,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506582982] [2020-10-20 06:02:43,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:02:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:02:44,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:02:44,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:02:44,146 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:02:44,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:02:44,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 06:02:44,147 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 06:02:44,147 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:02:44,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:02:44,771 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-20 06:02:44,780 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 06:02:44,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:02:44 BoogieIcfgContainer [2020-10-20 06:02:44,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:02:44,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:02:44,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:02:44,781 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:02:44,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:02:21" (3/4) ... [2020-10-20 06:02:44,785 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:02:44,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:02:44,786 INFO L168 Benchmark]: Toolchain (without parser) took 25361.97 ms. Allocated memory was 35.7 MB in the beginning and 126.4 MB in the end (delta: 90.7 MB). Free memory was 14.1 MB in the beginning and 86.3 MB in the end (delta: -72.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:44,787 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 34.1 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 43.9 kB). Peak memory consumption was 43.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:02:44,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.87 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.2 MB in the beginning and 20.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:44,788 INFO L168 Benchmark]: Boogie Preprocessor took 108.33 ms. Allocated memory is still 46.7 MB. Free memory was 20.6 MB in the beginning and 15.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:44,788 INFO L168 Benchmark]: RCFGBuilder took 1508.59 ms. Allocated memory was 46.7 MB in the beginning and 57.7 MB in the end (delta: 11.0 MB). Free memory was 15.5 MB in the beginning and 14.6 MB in the end (delta: 970.4 kB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:02:44,789 INFO L168 Benchmark]: TraceAbstraction took 22926.46 ms. Allocated memory was 57.7 MB in the beginning and 126.4 MB in the end (delta: 68.7 MB). Free memory was 14.1 MB in the beginning and 86.3 MB in the end (delta: -72.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:02:44,789 INFO L168 Benchmark]: Witness Printer took 3.82 ms. Allocated memory is still 126.4 MB. Free memory is still 86.3 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:02:44,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 34.1 MB. Free memory was 9.6 MB in the beginning and 9.6 MB in the end (delta: 43.9 kB). Peak memory consumption was 43.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 804.87 ms. Allocated memory was 35.7 MB in the beginning and 46.7 MB in the end (delta: 11.0 MB). Free memory was 13.2 MB in the beginning and 20.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 108.33 ms. Allocated memory is still 46.7 MB. Free memory was 20.6 MB in the beginning and 15.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1508.59 ms. Allocated memory was 46.7 MB in the beginning and 57.7 MB in the end (delta: 11.0 MB). Free memory was 15.5 MB in the beginning and 14.6 MB in the end (delta: 970.4 kB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 22926.46 ms. Allocated memory was 57.7 MB in the beginning and 126.4 MB in the end (delta: 68.7 MB). Free memory was 14.1 MB in the beginning and 86.3 MB in the end (delta: -72.2 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 3.82 ms. Allocated memory is still 126.4 MB. Free memory is still 86.3 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L764] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND TRUE !kobj [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] v->counter - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 333 locations, 71 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 22.8s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1734 SDtfs, 637 SDslu, 8490 SDs, 0 SdLazy, 3353 SolverSat, 93 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 961 GetRequests, 809 SyntacticMatches, 17 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 58 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 403 NumberOfCodeBlocks, 397 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 780 ConstructedInterpolants, 52 QuantifiedInterpolants, 96335 SizeOfPredicates, 49 NumberOfNonLiveVariables, 1813 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 168/174 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...