./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9fb52f5a8769e751d5dc39d93dc642433ae2f5b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:09:52,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:09:52,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:09:52,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:09:52,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:09:52,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:09:52,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:09:52,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:09:52,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:09:52,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:09:52,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:09:52,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:09:52,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:09:52,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:09:52,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:09:52,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:09:52,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:09:52,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:09:52,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:09:52,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:09:52,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:09:52,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:09:52,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:09:52,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:09:52,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:09:52,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:09:52,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:09:52,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:09:52,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:09:52,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:09:52,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:09:52,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:09:52,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:09:52,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:09:52,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:09:52,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:09:52,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:09:52,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:09:52,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:09:52,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:09:52,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:09:52,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:09:52,440 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:09:52,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:09:52,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:09:52,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:09:52,442 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:09:52,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:09:52,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:09:52,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:09:52,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:09:52,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:09:52,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:09:52,447 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:09:52,447 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:09:52,448 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:09:52,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:09:52,448 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:09:52,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:09:52,449 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:09:52,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:09:52,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:09:52,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:09:52,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:09:52,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:09:52,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:09:52,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:09:52,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:09:52,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:09:52,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:09:52,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2020-10-19 18:09:52,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:09:52,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:09:52,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:09:52,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:09:52,869 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:09:52,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-19 18:09:52,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ff606cec/fa4903d8cdbc4a6e85e34c384f54c417/FLAG461cf7a03 [2020-10-19 18:09:53,473 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:09:53,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-19 18:09:53,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ff606cec/fa4903d8cdbc4a6e85e34c384f54c417/FLAG461cf7a03 [2020-10-19 18:09:53,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ff606cec/fa4903d8cdbc4a6e85e34c384f54c417 [2020-10-19 18:09:53,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:09:53,780 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:09:53,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:53,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:09:53,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:09:53,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:53" (1/1) ... [2020-10-19 18:09:53,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6dc02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:53, skipping insertion in model container [2020-10-19 18:09:53,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:53" (1/1) ... [2020-10-19 18:09:53,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:09:53,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:09:54,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:54,469 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-19 18:09:54,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@377a1345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:54, skipping insertion in model container [2020-10-19 18:09:54,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:54,471 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 18:09:54,475 INFO L168 Benchmark]: Toolchain (without parser) took 698.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -129.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:09:54,476 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:09:54,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -129.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:09:54,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 686.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -129.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:09:56,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:09:56,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:09:56,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:09:56,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:09:56,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:09:56,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:09:56,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:09:56,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:09:56,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:09:56,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:09:56,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:09:56,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:09:56,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:09:56,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:09:56,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:09:56,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:09:56,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:09:56,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:09:56,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:09:56,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:09:56,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:09:56,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:09:56,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:09:56,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:09:56,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:09:56,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:09:56,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:09:56,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:09:56,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:09:56,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:09:56,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:09:56,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:09:56,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:09:56,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:09:56,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:09:56,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:09:56,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:09:56,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:09:56,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:09:56,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:09:56,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:09:56,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:09:56,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:09:56,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:09:56,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:09:56,377 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:09:56,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:09:56,378 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:09:56,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:09:56,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:09:56,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:09:56,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:09:56,379 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:09:56,380 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:09:56,380 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:09:56,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:09:56,380 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:09:56,381 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:09:56,381 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:09:56,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:09:56,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:09:56,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:09:56,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:09:56,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:09:56,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:09:56,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:09:56,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:09:56,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:09:56,384 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:09:56,384 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:09:56,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:09:56,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:09:56,385 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fb52f5a8769e751d5dc39d93dc642433ae2f5b [2020-10-19 18:09:56,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:09:56,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:09:56,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:09:56,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:09:56,713 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:09:56,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-19 18:09:56,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a857b85/61fc047a5c2a48aa86254a93a1ad907f/FLAG659a8196d [2020-10-19 18:09:57,347 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:09:57,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2020-10-19 18:09:57,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a857b85/61fc047a5c2a48aa86254a93a1ad907f/FLAG659a8196d [2020-10-19 18:09:57,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a857b85/61fc047a5c2a48aa86254a93a1ad907f [2020-10-19 18:09:57,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:09:57,621 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:09:57,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:57,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:09:57,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:09:57,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:57" (1/1) ... [2020-10-19 18:09:57,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a1d8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:57, skipping insertion in model container [2020-10-19 18:09:57,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:09:57" (1/1) ... [2020-10-19 18:09:57,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:09:57,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:09:58,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:58,141 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 18:09:58,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:09:58,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:58,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:09:58,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:09:58,420 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:09:58,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58 WrapperNode [2020-10-19 18:09:58,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:09:58,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:09:58,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:09:58,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:09:58,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... [2020-10-19 18:09:58,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... [2020-10-19 18:09:58,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... [2020-10-19 18:09:58,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... [2020-10-19 18:09:58,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... [2020-10-19 18:09:58,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... [2020-10-19 18:09:58,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... [2020-10-19 18:09:58,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:09:58,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:09:58,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:09:58,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:09:58,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:09:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:09:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:09:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:09:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:09:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:09:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:09:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:09:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:09:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:09:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-10-19 18:09:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-10-19 18:09:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-19 18:09:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-19 18:09:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:09:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-19 18:09:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-19 18:09:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-19 18:09:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-19 18:09:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-19 18:09:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-10-19 18:09:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-10-19 18:09:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-10-19 18:09:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-10-19 18:09:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-10-19 18:09:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-10-19 18:09:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-10-19 18:09:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-10-19 18:09:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-10-19 18:09:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-10-19 18:09:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-10-19 18:09:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-10-19 18:09:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-10-19 18:09:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-10-19 18:09:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-10-19 18:09:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-10-19 18:09:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-10-19 18:09:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-10-19 18:09:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-10-19 18:09:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-10-19 18:09:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-10-19 18:09:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-19 18:09:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-19 18:09:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2020-10-19 18:09:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2020-10-19 18:09:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-10-19 18:09:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:09:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-19 18:09:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-19 18:09:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-19 18:09:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:09:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:09:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:09:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:09:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:09:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:09:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:09:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:09:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:09:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:09:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:09:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:09:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:09:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:09:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:09:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:09:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:09:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:09:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:09:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:09:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:09:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:09:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:09:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:09:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:09:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:09:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:09:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:09:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:09:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:09:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:09:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:09:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:09:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:09:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:09:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:09:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:09:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:09:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:09:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:09:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:09:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:09:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:09:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:09:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:09:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:09:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:09:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:09:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:09:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:09:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:09:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:09:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:09:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:09:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:09:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:09:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:09:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:09:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:09:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:09:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:09:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:09:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:09:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:09:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:09:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:09:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:09:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:09:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:09:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:09:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:09:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:09:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:09:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:09:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:09:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:09:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:09:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:09:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:09:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:09:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:09:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:09:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:09:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:09:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:09:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:09:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:09:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:09:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:09:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:09:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:09:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:09:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:09:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:09:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:09:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:09:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:09:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:09:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:09:58,696 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:09:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:09:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:09:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:09:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:09:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:09:58,697 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:09:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:09:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-19 18:09:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:09:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-10-19 18:09:58,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-10-19 18:09:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-19 18:09:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-19 18:09:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-19 18:09:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:09:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-19 18:09:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-19 18:09:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-19 18:09:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:09:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-19 18:09:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-19 18:09:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-19 18:09:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:09:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-19 18:09:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-19 18:09:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-10-19 18:09:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-10-19 18:09:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-19 18:09:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-10-19 18:09:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:09:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-10-19 18:09:58,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-10-19 18:09:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-10-19 18:09:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-10-19 18:09:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-10-19 18:09:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:09:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:09:58,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-10-19 18:09:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-10-19 18:09:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-19 18:09:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-10-19 18:09:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-10-19 18:09:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-10-19 18:09:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-10-19 18:09:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-10-19 18:09:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-10-19 18:09:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-10-19 18:09:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-10-19 18:09:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-10-19 18:09:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-10-19 18:09:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-10-19 18:09:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-19 18:09:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-19 18:09:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-19 18:09:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2020-10-19 18:09:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2020-10-19 18:09:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-10-19 18:09:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:09:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:09:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:09:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-19 18:09:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:09:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:09:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-10-19 18:09:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-10-19 18:09:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-19 18:09:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-19 18:09:59,329 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:09:59,692 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 18:10:00,028 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:10:00,029 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:10:00,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:10:00 BoogieIcfgContainer [2020-10-19 18:10:00,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:10:00,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:10:00,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:10:00,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:10:00,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:09:57" (1/3) ... [2020-10-19 18:10:00,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea13bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:10:00, skipping insertion in model container [2020-10-19 18:10:00,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:09:58" (2/3) ... [2020-10-19 18:10:00,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea13bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:10:00, skipping insertion in model container [2020-10-19 18:10:00,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:10:00" (3/3) ... [2020-10-19 18:10:00,044 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_4.i [2020-10-19 18:10:00,059 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:10:00,069 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2020-10-19 18:10:00,087 INFO L253 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2020-10-19 18:10:00,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:10:00,112 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:10:00,113 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:10:00,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:10:00,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:10:00,114 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:10:00,114 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:10:00,114 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:10:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-10-19 18:10:00,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:10:00,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:00,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:00,152 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:00,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:00,160 INFO L82 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2020-10-19 18:10:00,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:00,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792156915] [2020-10-19 18:10:00,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:00,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:10:00,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:00,475 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:10:00,475 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:00,484 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:00,485 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:00,485 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:10:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:00,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:00,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792156915] [2020-10-19 18:10:00,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:00,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:10:00,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225705407] [2020-10-19 18:10:00,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:10:00,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:00,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:10:00,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:00,613 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 5 states. [2020-10-19 18:10:00,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:00,981 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2020-10-19 18:10:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:10:00,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-19 18:10:00,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:01,000 INFO L225 Difference]: With dead ends: 160 [2020-10-19 18:10:01,000 INFO L226 Difference]: Without dead ends: 157 [2020-10-19 18:10:01,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:01,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-19 18:10:01,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2020-10-19 18:10:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-19 18:10:01,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 162 transitions. [2020-10-19 18:10:01,066 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 162 transitions. Word has length 17 [2020-10-19 18:10:01,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:01,067 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 162 transitions. [2020-10-19 18:10:01,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:10:01,067 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2020-10-19 18:10:01,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:10:01,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:01,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:01,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:10:01,284 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:01,285 INFO L82 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2020-10-19 18:10:01,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:01,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183329517] [2020-10-19 18:10:01,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:01,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:10:01,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:01,463 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:10:01,464 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:01,471 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:01,471 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:01,472 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:10:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:01,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:01,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183329517] [2020-10-19 18:10:01,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:01,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-19 18:10:01,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785603788] [2020-10-19 18:10:01,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:10:01,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:01,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:10:01,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:10:01,843 INFO L87 Difference]: Start difference. First operand 151 states and 162 transitions. Second operand 10 states. [2020-10-19 18:10:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:02,605 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-10-19 18:10:02,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:10:02,609 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-19 18:10:02,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:02,613 INFO L225 Difference]: With dead ends: 156 [2020-10-19 18:10:02,613 INFO L226 Difference]: Without dead ends: 156 [2020-10-19 18:10:02,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:10:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-19 18:10:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2020-10-19 18:10:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-19 18:10:02,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2020-10-19 18:10:02,638 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 17 [2020-10-19 18:10:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:02,639 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2020-10-19 18:10:02,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:10:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2020-10-19 18:10:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:10:02,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:02,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:02,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:10:02,842 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:02,843 INFO L82 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2020-10-19 18:10:02,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:02,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581726827] [2020-10-19 18:10:02,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:02,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:10:02,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:03,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:03,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581726827] [2020-10-19 18:10:03,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:03,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:10:03,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064775340] [2020-10-19 18:10:03,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:10:03,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:03,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:10:03,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:03,046 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 5 states. [2020-10-19 18:10:03,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:03,072 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2020-10-19 18:10:03,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:10:03,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-19 18:10:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:03,075 INFO L225 Difference]: With dead ends: 150 [2020-10-19 18:10:03,075 INFO L226 Difference]: Without dead ends: 150 [2020-10-19 18:10:03,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:03,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-19 18:10:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2020-10-19 18:10:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-19 18:10:03,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2020-10-19 18:10:03,090 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 17 [2020-10-19 18:10:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:03,091 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2020-10-19 18:10:03,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:10:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2020-10-19 18:10:03,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:10:03,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:03,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:03,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:10:03,304 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:03,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:03,305 INFO L82 PathProgramCache]: Analyzing trace with hash 300911328, now seen corresponding path program 1 times [2020-10-19 18:10:03,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:03,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730262798] [2020-10-19 18:10:03,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:03,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:10:03,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:03,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:03,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730262798] [2020-10-19 18:10:03,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:03,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:10:03,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122570551] [2020-10-19 18:10:03,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:10:03,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:03,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:10:03,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:03,549 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 5 states. [2020-10-19 18:10:03,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:03,599 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2020-10-19 18:10:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:10:03,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-19 18:10:03,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:03,602 INFO L225 Difference]: With dead ends: 150 [2020-10-19 18:10:03,604 INFO L226 Difference]: Without dead ends: 150 [2020-10-19 18:10:03,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:10:03,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-19 18:10:03,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2020-10-19 18:10:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-19 18:10:03,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 155 transitions. [2020-10-19 18:10:03,633 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 155 transitions. Word has length 29 [2020-10-19 18:10:03,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:03,634 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 155 transitions. [2020-10-19 18:10:03,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:10:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2020-10-19 18:10:03,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-19 18:10:03,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:03,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:03,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:10:03,852 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:03,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:03,852 INFO L82 PathProgramCache]: Analyzing trace with hash -696161025, now seen corresponding path program 1 times [2020-10-19 18:10:03,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:03,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815224454] [2020-10-19 18:10:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:04,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 18:10:04,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:04,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:04,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:04,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815224454] [2020-10-19 18:10:04,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:04,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2020-10-19 18:10:04,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094836368] [2020-10-19 18:10:04,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:10:04,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:04,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:10:04,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:10:04,170 INFO L87 Difference]: Start difference. First operand 148 states and 155 transitions. Second operand 9 states. [2020-10-19 18:10:04,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:04,292 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2020-10-19 18:10:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:10:04,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-19 18:10:04,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:04,295 INFO L225 Difference]: With dead ends: 168 [2020-10-19 18:10:04,295 INFO L226 Difference]: Without dead ends: 168 [2020-10-19 18:10:04,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:10:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-19 18:10:04,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2020-10-19 18:10:04,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-19 18:10:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 169 transitions. [2020-10-19 18:10:04,307 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 169 transitions. Word has length 29 [2020-10-19 18:10:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:04,308 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 169 transitions. [2020-10-19 18:10:04,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:10:04,308 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 169 transitions. [2020-10-19 18:10:04,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-19 18:10:04,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:04,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:04,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 18:10:04,529 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:04,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:04,530 INFO L82 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2020-10-19 18:10:04,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:04,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564280638] [2020-10-19 18:10:04,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:04,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:10:04,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:04,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:04,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564280638] [2020-10-19 18:10:04,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:04,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-19 18:10:04,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817527273] [2020-10-19 18:10:04,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:10:04,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:04,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:10:04,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:10:04,753 INFO L87 Difference]: Start difference. First operand 162 states and 169 transitions. Second operand 6 states. [2020-10-19 18:10:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:04,794 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2020-10-19 18:10:04,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:10:04,794 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-19 18:10:04,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:04,796 INFO L225 Difference]: With dead ends: 168 [2020-10-19 18:10:04,796 INFO L226 Difference]: Without dead ends: 164 [2020-10-19 18:10:04,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:10:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-19 18:10:04,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-19 18:10:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-19 18:10:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2020-10-19 18:10:04,805 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 32 [2020-10-19 18:10:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:04,805 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2020-10-19 18:10:04,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:10:04,805 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2020-10-19 18:10:04,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-19 18:10:04,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:04,807 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:05,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 18:10:05,023 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:05,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:05,023 INFO L82 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2020-10-19 18:10:05,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:05,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125062027] [2020-10-19 18:10:05,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:05,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:10:05,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:05,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125062027] [2020-10-19 18:10:05,208 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:05,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1685722187] [2020-10-19 18:10:05,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:10:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:05,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:10:05,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:05,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:05,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:10:05,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-10-19 18:10:05,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427203203] [2020-10-19 18:10:05,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:10:05,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:05,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:10:05,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:10:05,699 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand 10 states. [2020-10-19 18:10:05,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:05,922 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2020-10-19 18:10:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:10:05,923 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-10-19 18:10:05,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:05,924 INFO L225 Difference]: With dead ends: 172 [2020-10-19 18:10:05,924 INFO L226 Difference]: Without dead ends: 168 [2020-10-19 18:10:05,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:10:05,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-19 18:10:05,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-10-19 18:10:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-19 18:10:05,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 175 transitions. [2020-10-19 18:10:05,966 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 175 transitions. Word has length 34 [2020-10-19 18:10:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:05,967 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 175 transitions. [2020-10-19 18:10:05,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:10:05,967 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 175 transitions. [2020-10-19 18:10:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-19 18:10:05,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:05,969 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:06,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk,8 mathsat -unsat_core_generation=3 [2020-10-19 18:10:06,376 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:06,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:06,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2020-10-19 18:10:06,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:06,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984404681] [2020-10-19 18:10:06,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:06,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:10:06,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:10:06,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:10:06,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:06,541 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:10:06,541 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:06,543 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:06,544 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:06,544 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:10:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:06,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:06,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984404681] [2020-10-19 18:10:06,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:06,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-19 18:10:06,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678779167] [2020-10-19 18:10:06,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:10:06,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:06,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:10:06,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:10:06,770 INFO L87 Difference]: Start difference. First operand 168 states and 175 transitions. Second operand 12 states. [2020-10-19 18:10:07,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:07,774 INFO L93 Difference]: Finished difference Result 179 states and 185 transitions. [2020-10-19 18:10:07,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:10:07,775 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-19 18:10:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:07,776 INFO L225 Difference]: With dead ends: 179 [2020-10-19 18:10:07,776 INFO L226 Difference]: Without dead ends: 179 [2020-10-19 18:10:07,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:10:07,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-19 18:10:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2020-10-19 18:10:07,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-19 18:10:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2020-10-19 18:10:07,783 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 38 [2020-10-19 18:10:07,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:07,783 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2020-10-19 18:10:07,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:10:07,783 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2020-10-19 18:10:07,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-19 18:10:07,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:07,785 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:07,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-19 18:10:07,995 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:07,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:07,996 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2020-10-19 18:10:07,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:07,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628535458] [2020-10-19 18:10:07,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:08,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:08,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:08,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628535458] [2020-10-19 18:10:08,146 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:08,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [886133727] [2020-10-19 18:10:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:10:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:08,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:08,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:08,545 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:08,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880127446] [2020-10-19 18:10:08,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:10:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:08,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 18:10:08,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:08,721 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:10:08,722 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:08,729 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:08,729 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:08,729 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:10:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:09,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:10,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:10,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-19 18:10:10,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409128070] [2020-10-19 18:10:10,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-19 18:10:10,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:10,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-19 18:10:10,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2020-10-19 18:10:10,201 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 23 states. [2020-10-19 18:10:13,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:13,304 INFO L93 Difference]: Finished difference Result 228 states and 237 transitions. [2020-10-19 18:10:13,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:10:13,305 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 38 [2020-10-19 18:10:13,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:13,306 INFO L225 Difference]: With dead ends: 228 [2020-10-19 18:10:13,306 INFO L226 Difference]: Without dead ends: 228 [2020-10-19 18:10:13,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-10-19 18:10:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-19 18:10:13,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 166. [2020-10-19 18:10:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-19 18:10:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 173 transitions. [2020-10-19 18:10:13,316 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 173 transitions. Word has length 38 [2020-10-19 18:10:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:13,316 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 173 transitions. [2020-10-19 18:10:13,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-19 18:10:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 173 transitions. [2020-10-19 18:10:13,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-19 18:10:13,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:13,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:13,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2020-10-19 18:10:13,920 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:13,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1347385061, now seen corresponding path program 1 times [2020-10-19 18:10:13,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:13,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982150863] [2020-10-19 18:10:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:14,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:10:14,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:14,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:14,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:14,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982150863] [2020-10-19 18:10:14,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:14,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-10-19 18:10:14,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026648460] [2020-10-19 18:10:14,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:10:14,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:14,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:10:14,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:10:14,191 INFO L87 Difference]: Start difference. First operand 166 states and 173 transitions. Second operand 7 states. [2020-10-19 18:10:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:14,237 INFO L93 Difference]: Finished difference Result 175 states and 182 transitions. [2020-10-19 18:10:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:10:14,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-10-19 18:10:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:14,240 INFO L225 Difference]: With dead ends: 175 [2020-10-19 18:10:14,241 INFO L226 Difference]: Without dead ends: 175 [2020-10-19 18:10:14,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:10:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-19 18:10:14,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2020-10-19 18:10:14,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-19 18:10:14,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2020-10-19 18:10:14,248 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 40 [2020-10-19 18:10:14,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:14,248 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2020-10-19 18:10:14,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:10:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2020-10-19 18:10:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-19 18:10:14,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:14,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:14,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-19 18:10:14,460 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:14,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:14,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1156201438, now seen corresponding path program 1 times [2020-10-19 18:10:14,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:14,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017333023] [2020-10-19 18:10:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-19 18:10:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:14,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:10:14,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:14,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:10:14,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017333023] [2020-10-19 18:10:14,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:14,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:10:14,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961718250] [2020-10-19 18:10:14,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:10:14,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:14,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:10:14,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:10:14,743 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand 3 states. [2020-10-19 18:10:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:14,922 INFO L93 Difference]: Finished difference Result 182 states and 188 transitions. [2020-10-19 18:10:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:10:14,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-10-19 18:10:14,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:14,924 INFO L225 Difference]: With dead ends: 182 [2020-10-19 18:10:14,925 INFO L226 Difference]: Without dead ends: 156 [2020-10-19 18:10:14,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:10:14,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-19 18:10:14,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 148. [2020-10-19 18:10:14,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-19 18:10:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 154 transitions. [2020-10-19 18:10:14,930 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 154 transitions. Word has length 38 [2020-10-19 18:10:14,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:14,930 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 154 transitions. [2020-10-19 18:10:14,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:10:14,931 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 154 transitions. [2020-10-19 18:10:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-19 18:10:14,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:14,931 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:15,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-19 18:10:15,138 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:15,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2052714108, now seen corresponding path program 1 times [2020-10-19 18:10:15,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:15,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047391727] [2020-10-19 18:10:15,140 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 [2020-10-19 18:10:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:15,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:15,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:15,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047391727] [2020-10-19 18:10:15,320 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:15,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [744791015] [2020-10-19 18:10:15,321 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 [2020-10-19 18:10:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:15,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:15,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:15,660 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:15,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829532089] [2020-10-19 18:10:15,660 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 [2020-10-19 18:10:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:15,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:10:15,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:15,816 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:10:15,817 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:15,819 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:15,819 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:15,819 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:10:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:16,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:16,145 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:16,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:16,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-10-19 18:10:16,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433160863] [2020-10-19 18:10:16,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:10:16,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:16,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:10:16,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:10:16,147 INFO L87 Difference]: Start difference. First operand 148 states and 154 transitions. Second operand 12 states. [2020-10-19 18:10:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:17,050 INFO L93 Difference]: Finished difference Result 158 states and 163 transitions. [2020-10-19 18:10:17,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:10:17,050 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-19 18:10:17,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:17,052 INFO L225 Difference]: With dead ends: 158 [2020-10-19 18:10:17,052 INFO L226 Difference]: Without dead ends: 158 [2020-10-19 18:10:17,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-10-19 18:10:17,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-19 18:10:17,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-10-19 18:10:17,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-19 18:10:17,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 152 transitions. [2020-10-19 18:10:17,062 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 152 transitions. Word has length 43 [2020-10-19 18:10:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:17,063 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 152 transitions. [2020-10-19 18:10:17,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:10:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 152 transitions. [2020-10-19 18:10:17,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-19 18:10:17,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:17,065 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:17,687 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 [2020-10-19 18:10:17,688 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-10-19 18:10:17,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:17,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2052714107, now seen corresponding path program 1 times [2020-10-19 18:10:17,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:17,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109704572] [2020-10-19 18:10:17,691 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 [2020-10-19 18:10:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:17,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:17,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:17,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109704572] [2020-10-19 18:10:17,884 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:17,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [376756432] [2020-10-19 18:10:17,884 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 [2020-10-19 18:10:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:18,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:18,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:18,237 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:18,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945307199] [2020-10-19 18:10:18,237 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 [2020-10-19 18:10:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:18,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 18:10:18,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:18,406 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:10:18,407 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:10:18,413 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:10:18,413 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:10:18,413 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:10:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:18,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:10:19,739 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 18:10:19,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:19,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-10-19 18:10:19,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598034309] [2020-10-19 18:10:19,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-19 18:10:19,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:10:19,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-19 18:10:19,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2020-10-19 18:10:19,741 INFO L87 Difference]: Start difference. First operand 146 states and 152 transitions. Second operand 23 states. [2020-10-19 18:10:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:10:22,224 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2020-10-19 18:10:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:10:22,225 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2020-10-19 18:10:22,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:10:22,226 INFO L225 Difference]: With dead ends: 144 [2020-10-19 18:10:22,226 INFO L226 Difference]: Without dead ends: 144 [2020-10-19 18:10:22,227 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 [2020-10-19 18:10:22,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-19 18:10:22,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-19 18:10:22,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-19 18:10:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 150 transitions. [2020-10-19 18:10:22,231 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 150 transitions. Word has length 43 [2020-10-19 18:10:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:10:22,231 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 150 transitions. [2020-10-19 18:10:22,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-19 18:10:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 150 transitions. [2020-10-19 18:10:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-19 18:10:22,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:10:22,232 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:10:22,838 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 [2020-10-19 18:10:22,839 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]=== [2020-10-19 18:10:22,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:10:22,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1044501987, now seen corresponding path program 1 times [2020-10-19 18:10:22,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:10:22,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765434778] [2020-10-19 18:10:22,842 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 [2020-10-19 18:10:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:22,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:10:22,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:23,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765434778] [2020-10-19 18:10:23,025 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:23,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [39960814] [2020-10-19 18:10:23,025 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 [2020-10-19 18:10:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:23,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:10:23,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:23,326 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:23,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692822736] [2020-10-19 18:10:23,326 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 [2020-10-19 18:10:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:10:23,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:10:23,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:10:23,476 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:10:23,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:10:23,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 18:10:23,476 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 18:10:23,476 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:10:24,081 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 [2020-10-19 18:10:24,088 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-19 18:10:24,096 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 18:10:24,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:10:24 BoogieIcfgContainer [2020-10-19 18:10:24,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:10:24,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:10:24,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:10:24,098 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:10:24,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:10:00" (3/4) ... [2020-10-19 18:10:24,102 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:10:24,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:10:24,103 INFO L168 Benchmark]: Toolchain (without parser) took 26488.39 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 371.7 MB). Free memory was 954.6 MB in the beginning and 870.5 MB in the end (delta: 84.0 MB). Peak memory consumption was 455.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:24,104 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:10:24,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:24,105 INFO L168 Benchmark]: Boogie Preprocessor took 168.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:10:24,105 INFO L168 Benchmark]: RCFGBuilder took 1440.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.3 MB in the end (delta: 111.4 MB). Peak memory consumption was 111.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:24,106 INFO L168 Benchmark]: TraceAbstraction took 24062.54 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 242.2 MB). Free memory was 972.3 MB in the beginning and 870.5 MB in the end (delta: 101.7 MB). Peak memory consumption was 343.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:10:24,106 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 1.4 GB. Free memory is still 870.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:10:24,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 798.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 168.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1440.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.3 MB in the end (delta: 111.4 MB). Peak memory consumption was 111.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24062.54 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 242.2 MB). Free memory was 972.3 MB in the beginning and 870.5 MB in the end (delta: 101.7 MB). Peak memory consumption was 343.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.56 ms. Allocated memory is still 1.4 GB. Free memory is still 870.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L770] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND TRUE !kobj [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_get(kobj) [L758] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] v->counter - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 341 locations, 71 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 23.9s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1865 SDtfs, 671 SDslu, 9719 SDs, 0 SdLazy, 3653 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 986 GetRequests, 831 SyntacticMatches, 17 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred 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: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 119 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 415 NumberOfCodeBlocks, 409 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 804 ConstructedInterpolants, 52 QuantifiedInterpolants, 98935 SizeOfPredicates, 51 NumberOfNonLiveVariables, 1857 ConjunctsInSsa, 141 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...