./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer --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 254e3dbb3d4b2f0b71591f87e1d60dc8ec7bfdff .................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer --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 254e3dbb3d4b2f0b71591f87e1d60dc8ec7bfdff ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:18:50,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:18:50,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:18:50,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:18:50,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:18:50,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:18:50,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:18:50,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:18:50,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:18:50,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:18:50,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:18:50,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:18:50,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:18:50,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:18:50,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:18:50,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:18:50,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:18:50,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:18:50,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:18:50,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:18:50,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:18:50,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:18:50,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:18:50,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:18:50,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:18:50,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:18:50,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:18:50,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:18:50,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:18:50,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:18:50,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:18:50,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:18:50,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:18:50,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:18:50,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:18:50,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:18:50,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:18:50,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:18:50,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:18:50,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:18:50,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:18:50,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 18:18:50,383 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:18:50,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:18:50,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:18:50,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:18:50,386 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:18:50,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:18:50,386 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:18:50,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:18:50,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:18:50,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:18:50,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:18:50,388 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:18:50,388 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:18:50,388 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:18:50,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:18:50,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:18:50,389 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:18:50,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:18:50,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:18:50,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:18:50,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:18:50,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:18:50,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:18:50,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:18:50,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:18:50,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:18:50,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:18:50,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:18:50,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 254e3dbb3d4b2f0b71591f87e1d60dc8ec7bfdff [2020-11-29 18:18:50,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:18:50,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:18:50,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:18:50,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:18:50,642 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:18:50,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2020-11-29 18:18:50,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/8fa7d00db/f9c119538474496683cd8be9c2136cc6/FLAG1db5f2b66 [2020-11-29 18:18:51,237 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:18:51,238 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2020-11-29 18:18:51,268 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/8fa7d00db/f9c119538474496683cd8be9c2136cc6/FLAG1db5f2b66 [2020-11-29 18:18:51,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/8fa7d00db/f9c119538474496683cd8be9c2136cc6 [2020-11-29 18:18:51,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:18:51,693 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:18:51,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:18:51,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:18:51,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:18:51,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:18:51" (1/1) ... [2020-11-29 18:18:51,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc39c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:51, skipping insertion in model container [2020-11-29 18:18:51,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:18:51" (1/1) ... [2020-11-29 18:18:51,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:18:51,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:18:52,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:18:52,223 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) [2020-11-29 18:18:52,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56e734ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:52, skipping insertion in model container [2020-11-29 18:18:52,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:18:52,225 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-29 18:18:52,228 INFO L168 Benchmark]: Toolchain (without parser) took 532.67 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 56.8 MB in the beginning and 84.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:18:52,229 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:18:52,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.43 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 56.6 MB in the beginning and 84.5 MB in the end (delta: -28.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:18:52,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 530.43 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 56.6 MB in the beginning and 84.5 MB in the end (delta: -28.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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 0.2.0-a4ecdab [2020-11-29 18:18:54,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:18:54,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:18:54,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:18:54,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:18:54,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:18:54,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:18:54,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:18:54,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:18:54,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:18:54,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:18:54,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:18:54,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:18:54,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:18:54,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:18:54,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:18:54,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:18:54,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:18:54,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:18:54,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:18:54,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:18:54,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:18:54,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:18:54,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:18:54,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:18:54,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:18:54,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:18:54,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:18:54,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:18:54,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:18:54,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:18:54,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:18:54,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:18:54,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:18:54,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:18:54,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:18:54,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:18:54,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:18:54,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:18:54,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:18:54,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:18:54,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 18:18:54,382 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:18:54,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:18:54,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:18:54,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:18:54,384 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:18:54,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:18:54,385 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:18:54,385 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:18:54,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:18:54,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:18:54,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:18:54,386 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:18:54,387 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:18:54,387 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:18:54,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:18:54,388 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:18:54,388 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:18:54,388 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:18:54,388 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:18:54,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:18:54,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:18:54,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:18:54,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:18:54,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:18:54,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:18:54,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:18:54,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:18:54,391 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:18:54,391 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:18:54,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:18:54,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:18:54,392 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 254e3dbb3d4b2f0b71591f87e1d60dc8ec7bfdff [2020-11-29 18:18:54,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:18:54,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:18:54,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:18:54,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:18:54,792 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:18:54,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2020-11-29 18:18:54,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/69dd0515f/3bb6b7f34749407b98112485548de64d/FLAG2bd456385 [2020-11-29 18:18:55,553 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:18:55,553 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2020-11-29 18:18:55,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/69dd0515f/3bb6b7f34749407b98112485548de64d/FLAG2bd456385 [2020-11-29 18:18:55,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/data/69dd0515f/3bb6b7f34749407b98112485548de64d [2020-11-29 18:18:55,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:18:55,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:18:55,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:18:55,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:18:55,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:18:55,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:18:55" (1/1) ... [2020-11-29 18:18:55,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53013e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:55, skipping insertion in model container [2020-11-29 18:18:55,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:18:55" (1/1) ... [2020-11-29 18:18:55,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:18:55,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:18:56,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:18:56,430 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-29 18:18:56,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:18:56,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:18:56,530 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:18:56,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:18:56,692 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:18:56,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56 WrapperNode [2020-11-29 18:18:56,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:18:56,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:18:56,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:18:56,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:18:56,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... [2020-11-29 18:18:56,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... [2020-11-29 18:18:56,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... [2020-11-29 18:18:56,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... [2020-11-29 18:18:56,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... [2020-11-29 18:18:56,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... [2020-11-29 18:18:56,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... [2020-11-29 18:18:56,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:18:56,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:18:56,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:18:56,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:18:56,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:18:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 18:18:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:18:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-29 18:18:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 18:18:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 18:18:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 18:18:56,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-29 18:18:56,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-29 18:18:56,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-29 18:18:56,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-11-29 18:18:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-11-29 18:18:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-29 18:18:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-11-29 18:18:56,863 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-29 18:18:56,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-29 18:18:56,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-29 18:18:56,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-29 18:18:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-29 18:18:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-29 18:18:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-11-29 18:18:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-11-29 18:18:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-11-29 18:18:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-11-29 18:18:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-11-29 18:18:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-11-29 18:18:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-11-29 18:18:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-11-29 18:18:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-11-29 18:18:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-11-29 18:18:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-11-29 18:18:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-11-29 18:18:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-11-29 18:18:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-11-29 18:18:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-29 18:18:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-29 18:18:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2020-11-29 18:18:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2020-11-29 18:18:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure probe2_6 [2020-11-29 18:18:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2020-11-29 18:18:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-11-29 18:18:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 18:18:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-11-29 18:18:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-11-29 18:18:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-11-29 18:18:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 18:18:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 18:18:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 18:18:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 18:18:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 18:18:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 18:18:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 18:18:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 18:18:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 18:18:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 18:18:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 18:18:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 18:18:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 18:18:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 18:18:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 18:18:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 18:18:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 18:18:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 18:18:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 18:18:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 18:18:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 18:18:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 18:18:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 18:18:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 18:18:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 18:18:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 18:18:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 18:18:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 18:18:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 18:18:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 18:18:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 18:18:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 18:18:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 18:18:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 18:18:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 18:18:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 18:18:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 18:18:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 18:18:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 18:18:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 18:18:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 18:18:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 18:18:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 18:18:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 18:18:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 18:18:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 18:18:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 18:18:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 18:18:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 18:18:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 18:18:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 18:18:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 18:18:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 18:18:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 18:18:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 18:18:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 18:18:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 18:18:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 18:18:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 18:18:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 18:18:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 18:18:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 18:18:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 18:18:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 18:18:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 18:18:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 18:18:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 18:18:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 18:18:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 18:18:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 18:18:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 18:18:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 18:18:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-29 18:18:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-11-29 18:18:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-11-29 18:18:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 18:18:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 18:18:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-11-29 18:18:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-11-29 18:18:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2020-11-29 18:18:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure probe2_6 [2020-11-29 18:18:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2020-11-29 18:18:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-11-29 18:18:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 18:18:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 18:18:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:18:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 18:18:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:18:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 18:18:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-29 18:18:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-29 18:18:56,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-11-29 18:18:56,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-11-29 18:18:57,584 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 18:18:58,052 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 18:18:58,497 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:18:58,497 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-29 18:18:58,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:18:58 BoogieIcfgContainer [2020-11-29 18:18:58,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:18:58,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:18:58,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:18:58,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:18:58,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:18:55" (1/3) ... [2020-11-29 18:18:58,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7206e6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:18:58, skipping insertion in model container [2020-11-29 18:18:58,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:18:56" (2/3) ... [2020-11-29 18:18:58,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7206e6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:18:58, skipping insertion in model container [2020-11-29 18:18:58,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:18:58" (3/3) ... [2020-11-29 18:18:58,511 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_1.i [2020-11-29 18:18:58,522 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:18:58,527 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 83 error locations. [2020-11-29 18:18:58,538 INFO L253 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2020-11-29 18:18:58,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:18:58,563 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 18:18:58,563 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:18:58,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:18:58,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:18:58,564 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:18:58,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:18:58,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:18:58,585 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-11-29 18:18:58,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 18:18:58,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:18:58,601 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] [2020-11-29 18:18:58,604 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:18:58,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:18:58,612 INFO L82 PathProgramCache]: Analyzing trace with hash -42624849, now seen corresponding path program 1 times [2020-11-29 18:18:58,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:18:58,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319170353] [2020-11-29 18:18:58,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:18:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:18:58,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:18:58,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:18:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:18:58,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:18:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:18:59,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319170353] [2020-11-29 18:18:59,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:18:59,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-29 18:18:59,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361341664] [2020-11-29 18:18:59,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:18:59,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:18:59,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:18:59,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:18:59,081 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 5 states. [2020-11-29 18:18:59,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:18:59,175 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2020-11-29 18:18:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:18:59,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-29 18:18:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:18:59,188 INFO L225 Difference]: With dead ends: 85 [2020-11-29 18:18:59,188 INFO L226 Difference]: Without dead ends: 82 [2020-11-29 18:18:59,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:18:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-29 18:18:59,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2020-11-29 18:18:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-29 18:18:59,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-11-29 18:18:59,243 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 20 [2020-11-29 18:18:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:18:59,244 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-11-29 18:18:59,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:18:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-11-29 18:18:59,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 18:18:59,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:18:59,245 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] [2020-11-29 18:18:59,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:18:59,461 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:18:59,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:18:59,462 INFO L82 PathProgramCache]: Analyzing trace with hash -239138354, now seen corresponding path program 1 times [2020-11-29 18:18:59,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:18:59,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918000477] [2020-11-29 18:18:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:18:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:18:59,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:18:59,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:18:59,771 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:59,772 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-29 18:18:59,772 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:18:59,806 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-11-29 18:18:59,811 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:18:59,811 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-11-29 18:18:59,851 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-29 18:18:59,855 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:18:59,862 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:18:59,862 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:18:59,863 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:7 [2020-11-29 18:18:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:18:59,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:00,096 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-29 18:19:00,115 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-29 18:19:00,116 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:00,151 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:00,153 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:00,153 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:28 [2020-11-29 18:19:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:00,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918000477] [2020-11-29 18:19:00,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:00,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 18:19:00,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727329292] [2020-11-29 18:19:00,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:19:00,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:00,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:19:00,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:19:00,260 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2020-11-29 18:19:00,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:00,619 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2020-11-29 18:19:00,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:19:00,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-11-29 18:19:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:00,621 INFO L225 Difference]: With dead ends: 110 [2020-11-29 18:19:00,622 INFO L226 Difference]: Without dead ends: 110 [2020-11-29 18:19:00,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:19:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-29 18:19:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 95. [2020-11-29 18:19:00,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-29 18:19:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2020-11-29 18:19:00,633 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 20 [2020-11-29 18:19:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:00,638 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2020-11-29 18:19:00,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:19:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2020-11-29 18:19:00,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 18:19:00,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:00,640 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] [2020-11-29 18:19:00,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:19:00,847 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:00,847 INFO L82 PathProgramCache]: Analyzing trace with hash -239138355, now seen corresponding path program 1 times [2020-11-29 18:19:00,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:00,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880414322] [2020-11-29 18:19:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:19:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:01,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 18:19:01,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:01,172 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-29 18:19:01,173 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-29 18:19:01,173 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:01,209 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-29 18:19:01,210 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:19:01,212 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:01,212 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-29 18:19:01,213 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:19:01,244 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-29 18:19:01,245 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:01,248 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:01,248 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:01,248 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-29 18:19:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:01,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:01,349 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:19:01,357 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-29 18:19:01,358 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:01,365 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:01,365 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:01,365 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:16 [2020-11-29 18:19:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:01,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880414322] [2020-11-29 18:19:01,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:01,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 18:19:01,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609973420] [2020-11-29 18:19:01,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:19:01,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:01,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:19:01,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:19:01,387 INFO L87 Difference]: Start difference. First operand 95 states and 113 transitions. Second operand 5 states. [2020-11-29 18:19:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:01,632 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2020-11-29 18:19:01,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:19:01,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-29 18:19:01,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:01,636 INFO L225 Difference]: With dead ends: 131 [2020-11-29 18:19:01,636 INFO L226 Difference]: Without dead ends: 127 [2020-11-29 18:19:01,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:19:01,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-29 18:19:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 104. [2020-11-29 18:19:01,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-29 18:19:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2020-11-29 18:19:01,657 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 20 [2020-11-29 18:19:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:01,657 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2020-11-29 18:19:01,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:19:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2020-11-29 18:19:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 18:19:01,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:01,658 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] [2020-11-29 18:19:01,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 18:19:01,874 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:01,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:01,875 INFO L82 PathProgramCache]: Analyzing trace with hash 240943427, now seen corresponding path program 1 times [2020-11-29 18:19:01,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:01,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475836027] [2020-11-29 18:19:01,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:19:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:02,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:19:02,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:02,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:02,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475836027] [2020-11-29 18:19:02,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:02,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-29 18:19:02,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002827373] [2020-11-29 18:19:02,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:19:02,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:02,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:19:02,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:19:02,212 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand 5 states. [2020-11-29 18:19:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:02,255 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2020-11-29 18:19:02,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:19:02,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-29 18:19:02,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:02,258 INFO L225 Difference]: With dead ends: 103 [2020-11-29 18:19:02,258 INFO L226 Difference]: Without dead ends: 103 [2020-11-29 18:19:02,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:19:02,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-29 18:19:02,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-11-29 18:19:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-29 18:19:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2020-11-29 18:19:02,267 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 22 [2020-11-29 18:19:02,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:02,267 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2020-11-29 18:19:02,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:19:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2020-11-29 18:19:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 18:19:02,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:02,268 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] [2020-11-29 18:19:02,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 18:19:02,484 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:02,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2116285580, now seen corresponding path program 1 times [2020-11-29 18:19:02,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:02,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495472395] [2020-11-29 18:19:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:19:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:02,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:19:02,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:02,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:02,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495472395] [2020-11-29 18:19:02,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:02,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 18:19:02,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228683779] [2020-11-29 18:19:02,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 18:19:02,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:02,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:19:02,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:19:02,861 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand 10 states. [2020-11-29 18:19:02,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:02,930 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2020-11-29 18:19:02,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 18:19:02,932 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-11-29 18:19:02,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:02,933 INFO L225 Difference]: With dead ends: 121 [2020-11-29 18:19:02,933 INFO L226 Difference]: Without dead ends: 113 [2020-11-29 18:19:02,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-29 18:19:02,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-29 18:19:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2020-11-29 18:19:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-29 18:19:02,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-11-29 18:19:02,953 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 22 [2020-11-29 18:19:02,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:02,953 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-11-29 18:19:02,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 18:19:02,954 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-11-29 18:19:02,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 18:19:02,955 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:02,956 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] [2020-11-29 18:19:03,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 18:19:03,172 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:03,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:03,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1120687975, now seen corresponding path program 1 times [2020-11-29 18:19:03,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:03,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182814106] [2020-11-29 18:19:03,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:19:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:03,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:19:03,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:03,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:03,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182814106] [2020-11-29 18:19:03,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:03,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-11-29 18:19:03,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932002167] [2020-11-29 18:19:03,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 18:19:03,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:03,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:19:03,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:19:03,620 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 10 states. [2020-11-29 18:19:03,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:03,853 INFO L93 Difference]: Finished difference Result 118 states and 123 transitions. [2020-11-29 18:19:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 18:19:03,853 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-11-29 18:19:03,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:03,854 INFO L225 Difference]: With dead ends: 118 [2020-11-29 18:19:03,854 INFO L226 Difference]: Without dead ends: 118 [2020-11-29 18:19:03,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:19:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-29 18:19:03,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2020-11-29 18:19:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 18:19:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-11-29 18:19:03,865 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 23 [2020-11-29 18:19:03,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:03,865 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-11-29 18:19:03,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 18:19:03,865 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-11-29 18:19:03,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:19:03,866 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:03,866 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] [2020-11-29 18:19:04,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 18:19:04,076 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:04,077 INFO L82 PathProgramCache]: Analyzing trace with hash -381588475, now seen corresponding path program 1 times [2020-11-29 18:19:04,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:04,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143633187] [2020-11-29 18:19:04,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:19:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:04,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:19:04,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:04,273 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 [2020-11-29 18:19:04,273 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:04,276 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:04,276 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:04,276 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 18:19:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:04,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:04,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143633187] [2020-11-29 18:19:04,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:04,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2020-11-29 18:19:04,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813061995] [2020-11-29 18:19:04,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:19:04,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:04,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:19:04,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:19:04,385 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 6 states. [2020-11-29 18:19:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:04,580 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2020-11-29 18:19:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:19:04,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-29 18:19:04,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:04,582 INFO L225 Difference]: With dead ends: 109 [2020-11-29 18:19:04,582 INFO L226 Difference]: Without dead ends: 109 [2020-11-29 18:19:04,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:19:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-29 18:19:04,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-11-29 18:19:04,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 18:19:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2020-11-29 18:19:04,595 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 24 [2020-11-29 18:19:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:04,595 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2020-11-29 18:19:04,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:19:04,595 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2020-11-29 18:19:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:19:04,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:04,596 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] [2020-11-29 18:19:04,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 18:19:04,797 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:04,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:04,798 INFO L82 PathProgramCache]: Analyzing trace with hash -887147100, now seen corresponding path program 1 times [2020-11-29 18:19:04,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:04,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656697622] [2020-11-29 18:19:04,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-29 18:19:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:04,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:19:04,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:05,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:05,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656697622] [2020-11-29 18:19:05,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:05,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-29 18:19:05,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157322369] [2020-11-29 18:19:05,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:19:05,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:05,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:19:05,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:19:05,064 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 5 states. [2020-11-29 18:19:05,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:05,091 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-11-29 18:19:05,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:19:05,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-29 18:19:05,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:05,093 INFO L225 Difference]: With dead ends: 71 [2020-11-29 18:19:05,093 INFO L226 Difference]: Without dead ends: 67 [2020-11-29 18:19:05,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:19:05,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-11-29 18:19:05,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-11-29 18:19:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-11-29 18:19:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2020-11-29 18:19:05,097 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 24 [2020-11-29 18:19:05,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:05,097 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2020-11-29 18:19:05,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:19:05,097 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2020-11-29 18:19:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 18:19:05,098 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:05,098 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] [2020-11-29 18:19:05,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-29 18:19:05,299 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:05,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:05,300 INFO L82 PathProgramCache]: Analyzing trace with hash 783543578, now seen corresponding path program 1 times [2020-11-29 18:19:05,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:05,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416396364] [2020-11-29 18:19:05,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:19:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:05,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:19:05,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:05,562 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-29 18:19:05,563 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-29 18:19:05,563 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:05,591 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-29 18:19:05,592 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:19:05,593 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:05,594 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-29 18:19:05,594 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:19:05,693 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:05,693 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-11-29 18:19:05,694 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:05,712 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-11-29 18:19:05,713 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:05,713 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-11-29 18:19:05,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:05,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:06,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416396364] [2020-11-29 18:19:06,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:06,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2020-11-29 18:19:06,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442014372] [2020-11-29 18:19:06,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 18:19:06,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:06,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 18:19:06,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:19:06,353 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 9 states. [2020-11-29 18:19:06,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:06,681 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-11-29 18:19:06,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:19:06,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-11-29 18:19:06,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:06,682 INFO L225 Difference]: With dead ends: 71 [2020-11-29 18:19:06,682 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 18:19:06,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-11-29 18:19:06,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 18:19:06,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2020-11-29 18:19:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-29 18:19:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-11-29 18:19:06,689 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 28 [2020-11-29 18:19:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:06,689 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-11-29 18:19:06,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 18:19:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-11-29 18:19:06,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 18:19:06,691 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:06,691 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] [2020-11-29 18:19:06,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-29 18:19:06,907 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:06,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:06,907 INFO L82 PathProgramCache]: Analyzing trace with hash 783543579, now seen corresponding path program 1 times [2020-11-29 18:19:06,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:06,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850003585] [2020-11-29 18:19:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/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 [2020-11-29 18:19:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:07,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 18:19:07,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:07,125 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:07,125 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-29 18:19:07,125 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:07,162 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-11-29 18:19:07,163 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:07,163 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-11-29 18:19:07,303 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:07,304 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-11-29 18:19:07,305 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:19:07,307 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:07,325 INFO L625 ElimStorePlain]: treesize reduction 14, result has 53.3 percent of original size [2020-11-29 18:19:07,326 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:07,326 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:16 [2020-11-29 18:19:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:07,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:07,652 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:19:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:08,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850003585] [2020-11-29 18:19:08,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:08,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2020-11-29 18:19:08,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5346311] [2020-11-29 18:19:08,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 18:19:08,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:08,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 18:19:08,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-11-29 18:19:08,522 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 15 states. [2020-11-29 18:19:09,388 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-11-29 18:19:11,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:11,021 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2020-11-29 18:19:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 18:19:11,022 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2020-11-29 18:19:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:11,022 INFO L225 Difference]: With dead ends: 64 [2020-11-29 18:19:11,022 INFO L226 Difference]: Without dead ends: 64 [2020-11-29 18:19:11,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-11-29 18:19:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-29 18:19:11,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-11-29 18:19:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-29 18:19:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2020-11-29 18:19:11,025 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 28 [2020-11-29 18:19:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:11,025 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2020-11-29 18:19:11,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 18:19:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2020-11-29 18:19:11,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 18:19:11,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:11,026 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] [2020-11-29 18:19:11,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-29 18:19:11,227 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:19:11,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash 558976828, now seen corresponding path program 1 times [2020-11-29 18:19:11,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:19:11,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123804201] [2020-11-29 18:19:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-29 18:19:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:11,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 18:19:11,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:19:11,483 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-29 18:19:11,484 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-29 18:19:11,484 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:11,508 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-29 18:19:11,509 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:19:11,509 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:11,510 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-29 18:19:11,510 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 18:19:11,526 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-29 18:19:11,527 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:11,529 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:11,529 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:11,529 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-29 18:19:11,581 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2020-11-29 18:19:11,581 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:11,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:11,583 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:11,584 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2020-11-29 18:19:13,724 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:13,725 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-11-29 18:19:13,726 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 18:19:13,739 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:19:13,741 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:13,769 INFO L625 ElimStorePlain]: treesize reduction 18, result has 41.9 percent of original size [2020-11-29 18:19:13,770 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:19:13,770 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:13 [2020-11-29 18:19:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:13,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:19:15,944 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:19:18,097 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:19:18,121 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-29 18:19:18,122 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:19:18,127 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:19:18,128 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:19:18,128 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:19 [2020-11-29 18:19:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:20,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123804201] [2020-11-29 18:19:20,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:20,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2020-11-29 18:19:20,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401475899] [2020-11-29 18:19:20,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 18:19:20,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:19:20,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 18:19:20,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=133, Unknown=4, NotChecked=0, Total=182 [2020-11-29 18:19:20,198 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 14 states. [2020-11-29 18:19:24,306 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 33 [2020-11-29 18:20:12,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:12,918 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2020-11-29 18:20:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 18:20:12,918 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 29 [2020-11-29 18:20:12,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:12,919 INFO L225 Difference]: With dead ends: 68 [2020-11-29 18:20:12,919 INFO L226 Difference]: Without dead ends: 57 [2020-11-29 18:20:12,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=95, Invalid=277, Unknown=8, NotChecked=0, Total=380 [2020-11-29 18:20:12,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-29 18:20:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-29 18:20:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-29 18:20:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-11-29 18:20:12,923 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 29 [2020-11-29 18:20:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:12,923 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-11-29 18:20:12,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 18:20:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-11-29 18:20:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 18:20:12,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:12,925 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] [2020-11-29 18:20:13,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-29 18:20:13,126 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2020-11-29 18:20:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:13,126 INFO L82 PathProgramCache]: Analyzing trace with hash 249986399, now seen corresponding path program 1 times [2020-11-29 18:20:13,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:20:13,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009144435] [2020-11-29 18:20:13,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd2f24-e998-4647-b696-da273e190b5e/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-29 18:20:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:13,314 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:13,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:13,417 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 18:20:13,417 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:20:13,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-29 18:20:13,647 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-29 18:20:13,656 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-29 18:20:13,657 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-29 18:20:13,657 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-29 18:20:13,657 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-29 18:20:13,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:20:13 BoogieIcfgContainer [2020-11-29 18:20:13,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:20:13,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:20:13,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:20:13,690 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:20:13,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:18:58" (3/4) ... [2020-11-29 18:20:13,695 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:20:13,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:20:13,696 INFO L168 Benchmark]: Toolchain (without parser) took 77878.10 ms. Allocated memory was 60.8 MB in the beginning and 163.6 MB in the end (delta: 102.8 MB). Free memory was 39.4 MB in the beginning and 121.2 MB in the end (delta: -81.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:13,696 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 42.7 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:20:13,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 875.04 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 39.3 MB in the beginning and 42.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:13,697 INFO L168 Benchmark]: Boogie Preprocessor took 90.22 ms. Allocated memory is still 75.5 MB. Free memory was 42.1 MB in the beginning and 37.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:13,698 INFO L168 Benchmark]: RCFGBuilder took 1715.53 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 37.2 MB in the beginning and 46.2 MB in the end (delta: -9.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:13,698 INFO L168 Benchmark]: TraceAbstraction took 75186.23 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 45.6 MB in the beginning and 121.2 MB in the end (delta: -75.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:20:13,699 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 163.6 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:20:13,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 42.7 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 875.04 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 39.3 MB in the beginning and 42.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.22 ms. Allocated memory is still 75.5 MB. Free memory was 42.1 MB in the beginning and 37.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1715.53 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 37.2 MB in the beginning and 46.2 MB in the end (delta: -9.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 75186.23 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 45.6 MB in the beginning and 121.2 MB in the end (delta: -75.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.58 ms. Allocated memory is still 163.6 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 791]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 791. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L783] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={7:0}] [L792] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L785] CALL, EXPR probe2_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={7:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=4, \result={1:0}, a6={3:0}, ldv_global_msg_list={7:0}, malloc(size)={1:0}, size=4] [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={7:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=-2147481600, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND TRUE ret<0 [L773] return ret; VAL [\result=-2147481600, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=2147485696] [L785] RET, EXPR probe2_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={7:0}, probe2_6(&a6)=-2147481600] [L785] int ret = probe2_6(&a6); [L786] COND FALSE !(ret==0) VAL [a6={3:0}, ldv_global_msg_list={7:0}, ret=2147485696] [L789] a6.p = 0 VAL [a6={3:0}, ldv_global_msg_list={7:0}, ret=2147485696] [L792] RET entry_point() VAL [a6={3:0}, ldv_global_msg_list={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 374 locations, 83 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 75.0s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 56.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 647 SDtfs, 822 SDslu, 1577 SDs, 0 SdLazy, 1013 SolverSat, 231 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 45.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 420 SyntacticMatches, 24 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 21.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 81 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.8s InterpolantComputationTime, 295 NumberOfCodeBlocks, 295 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 498 ConstructedInterpolants, 45 QuantifiedInterpolants, 70319 SizeOfPredicates, 39 NumberOfNonLiveVariables, 1216 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 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...