./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f4d5612c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0775aa74e42740d69127a88680deb3bae2149559 ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0775aa74e42740d69127a88680deb3bae2149559 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- This is Ultimate 0.1.24-f4d5612 [2019-11-28 12:44:49,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:44:49,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:44:49,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:44:49,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:44:49,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:44:49,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:44:49,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:44:49,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:44:49,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:44:49,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:44:49,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:44:49,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:44:49,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:44:49,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:44:49,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:44:49,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:44:49,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:44:49,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:44:49,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:44:49,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:44:49,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:44:49,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:44:49,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:44:49,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:44:49,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:44:49,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:44:49,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:44:49,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:44:49,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:44:49,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:44:49,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:44:49,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:44:49,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:44:49,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:44:49,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:44:49,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:44:49,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:44:49,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:44:49,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:44:49,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:44:49,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 12:44:49,365 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:44:49,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:44:49,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:44:49,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:44:49,367 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:44:49,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:44:49,368 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:44:49,368 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:44:49,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:44:49,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:44:49,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:44:49,369 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:44:49,370 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:44:49,370 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:44:49,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:44:49,370 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:44:49,371 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:44:49,371 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:44:49,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:44:49,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:44:49,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:44:49,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:44:49,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:44:49,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:44:49,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:44:49,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 12:44:49,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 12:44:49,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-11-28 12:44:49,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:44:49,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:44:49,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:44:49,705 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:44:49,705 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:44:49,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-28 12:44:49,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571ed77d7/b4d2b3dbb5184ddeac80ca0e98bc7b52/FLAGdea5946b1 [2019-11-28 12:44:50,419 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:44:50,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-28 12:44:50,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571ed77d7/b4d2b3dbb5184ddeac80ca0e98bc7b52/FLAGdea5946b1 [2019-11-28 12:44:50,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571ed77d7/b4d2b3dbb5184ddeac80ca0e98bc7b52 [2019-11-28 12:44:50,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:44:50,641 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:44:50,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:50,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:44:50,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:44:50,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:50" (1/1) ... [2019-11-28 12:44:50,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf4c1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:50, skipping insertion in model container [2019-11-28 12:44:50,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:50" (1/1) ... [2019-11-28 12:44:50,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:44:50,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:44:51,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:51,249 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-28 12:44:51,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@720d3c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:51, skipping insertion in model container [2019-11-28 12:44:51,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:51,251 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 12:44:51,254 INFO L168 Benchmark]: Toolchain (without parser) took 612.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:51,255 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:44:51,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:51,258 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 609.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-f4d5612 [2019-11-28 12:44:53,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:44:53,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:44:53,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:44:53,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:44:53,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:44:53,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:44:53,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:44:53,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:44:53,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:44:53,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:44:53,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:44:53,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:44:53,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:44:53,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:44:53,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:44:53,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:44:53,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:44:53,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:44:53,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:44:53,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:44:53,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:44:53,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:44:53,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:44:53,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:44:53,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:44:53,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:44:53,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:44:53,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:44:53,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:44:53,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:44:53,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:44:53,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:44:53,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:44:53,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:44:53,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:44:53,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:44:53,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:44:53,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:44:53,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:44:53,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:44:53,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 12:44:53,143 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:44:53,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:44:53,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:44:53,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:44:53,148 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:44:53,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:44:53,149 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:44:53,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:44:53,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:44:53,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:44:53,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:44:53,151 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:44:53,152 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:44:53,152 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:44:53,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:44:53,153 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:44:53,153 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 12:44:53,153 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 12:44:53,154 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:44:53,155 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:44:53,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:44:53,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:44:53,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:44:53,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:44:53,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:44:53,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:44:53,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:44:53,160 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 12:44:53,161 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 12:44:53,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 12:44:53,161 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0775aa74e42740d69127a88680deb3bae2149559 [2019-11-28 12:44:53,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:44:53,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:44:53,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:44:53,475 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:44:53,476 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:44:53,477 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-28 12:44:53,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3eb56ec6/6ed39f3fa4d648a19e010f626da522c1/FLAGe72f85759 [2019-11-28 12:44:54,155 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:44:54,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-28 12:44:54,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3eb56ec6/6ed39f3fa4d648a19e010f626da522c1/FLAGe72f85759 [2019-11-28 12:44:54,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3eb56ec6/6ed39f3fa4d648a19e010f626da522c1 [2019-11-28 12:44:54,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:44:54,457 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:44:54,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:54,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:44:54,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:44:54,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:54" (1/1) ... [2019-11-28 12:44:54,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee01756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:54, skipping insertion in model container [2019-11-28 12:44:54,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:54" (1/1) ... [2019-11-28 12:44:54,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:44:54,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:44:55,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:55,065 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 12:44:55,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:44:55,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:55,161 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 12:44:55,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:55,299 INFO L208 MainTranslator]: Completed translation [2019-11-28 12:44:55,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55 WrapperNode [2019-11-28 12:44:55,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:55,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 12:44:55,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 12:44:55,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 12:44:55,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... [2019-11-28 12:44:55,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... [2019-11-28 12:44:55,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... [2019-11-28 12:44:55,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... [2019-11-28 12:44:55,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... [2019-11-28 12:44:55,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... [2019-11-28 12:44:55,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... [2019-11-28 12:44:55,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 12:44:55,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 12:44:55,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 12:44:55,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 12:44:55,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:44:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 12:44:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 12:44:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-28 12:44:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 12:44:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 12:44:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 12:44:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 12:44:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 12:44:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 12:44:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-28 12:44:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-28 12:44:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-28 12:44:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-28 12:44:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-28 12:44:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-28 12:44:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-28 12:44:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-28 12:44:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-28 12:44:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-28 12:44:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-28 12:44:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-28 12:44:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-28 12:44:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-28 12:44:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-28 12:44:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-28 12:44:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-28 12:44:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-28 12:44:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-28 12:44:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-28 12:44:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-28 12:44:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-28 12:44:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-28 12:44:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-28 12:44:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-28 12:44:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-28 12:44:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-28 12:44:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-28 12:44:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-28 12:44:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-28 12:44:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-28 12:44:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-28 12:44:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-28 12:44:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-28 12:44:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 12:44:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-28 12:44:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-28 12:44:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-28 12:44:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 12:44:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 12:44:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 12:44:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 12:44:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 12:44:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 12:44:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 12:44:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 12:44:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 12:44:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 12:44:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 12:44:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 12:44:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 12:44:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 12:44:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 12:44:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 12:44:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 12:44:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 12:44:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 12:44:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 12:44:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 12:44:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 12:44:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 12:44:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 12:44:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 12:44:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 12:44:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 12:44:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 12:44:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 12:44:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 12:44:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 12:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 12:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 12:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 12:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 12:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 12:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 12:44:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 12:44:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 12:44:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 12:44:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 12:44:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 12:44:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 12:44:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 12:44:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 12:44:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 12:44:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 12:44:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-28 12:44:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-28 12:44:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-28 12:44:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 12:44:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-28 12:44:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-28 12:44:55,501 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 12:44:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 12:44:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-28 12:44:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-28 12:44:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-28 12:44:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-28 12:44:56,198 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-28 12:44:56,633 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-28 12:44:57,003 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 12:44:57,003 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 12:44:57,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:57 BoogieIcfgContainer [2019-11-28 12:44:57,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 12:44:57,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 12:44:57,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 12:44:57,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 12:44:57,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:44:54" (1/3) ... [2019-11-28 12:44:57,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d25b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:44:57, skipping insertion in model container [2019-11-28 12:44:57,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:55" (2/3) ... [2019-11-28 12:44:57,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d25b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:44:57, skipping insertion in model container [2019-11-28 12:44:57,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:57" (3/3) ... [2019-11-28 12:44:57,019 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-28 12:44:57,030 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 12:44:57,042 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-28 12:44:57,057 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-28 12:44:57,089 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 12:44:57,089 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 12:44:57,089 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 12:44:57,090 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 12:44:57,090 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 12:44:57,090 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 12:44:57,090 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 12:44:57,090 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 12:44:57,115 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-28 12:44:57,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 12:44:57,132 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:57,133 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:57,134 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:57,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:57,142 INFO L82 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2019-11-28 12:44:57,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:57,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262174994] [2019-11-28 12:44:57,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:57,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:44:57,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:57,458 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:57,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:57,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262174994] [2019-11-28 12:44:57,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:57,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-28 12:44:57,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767353391] [2019-11-28 12:44:57,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:44:57,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:57,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:44:57,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:57,605 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-28 12:44:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:57,669 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-28 12:44:57,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:44:57,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-28 12:44:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:57,682 INFO L225 Difference]: With dead ends: 53 [2019-11-28 12:44:57,682 INFO L226 Difference]: Without dead ends: 50 [2019-11-28 12:44:57,684 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:57,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-28 12:44:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-28 12:44:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 12:44:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-28 12:44:57,739 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-28 12:44:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:57,743 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-28 12:44:57,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:44:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-28 12:44:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 12:44:57,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:57,749 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:57,969 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 12:44:57,971 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:57,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:57,972 INFO L82 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2019-11-28 12:44:57,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:57,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215494201] [2019-11-28 12:44:57,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:58,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 12:44:58,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:58,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:58,119 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:58,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215494201] [2019-11-28 12:44:58,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:58,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 12:44:58,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772903659] [2019-11-28 12:44:58,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 12:44:58,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:58,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 12:44:58,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 12:44:58,188 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-28 12:44:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:58,249 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-28 12:44:58,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 12:44:58,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-28 12:44:58,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:58,251 INFO L225 Difference]: With dead ends: 46 [2019-11-28 12:44:58,251 INFO L226 Difference]: Without dead ends: 43 [2019-11-28 12:44:58,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 12:44:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-28 12:44:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-28 12:44:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 12:44:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-28 12:44:58,259 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-28 12:44:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:58,259 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-28 12:44:58,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 12:44:58,260 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-28 12:44:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 12:44:58,260 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:58,261 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:58,473 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 12:44:58,474 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:58,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:58,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2019-11-28 12:44:58,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:58,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108791677] [2019-11-28 12:44:58,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:58,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:44:58,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:58,661 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:58,741 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108791677] [2019-11-28 12:44:58,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:58,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:44:58,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964575031] [2019-11-28 12:44:58,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:44:58,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:58,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:44:58,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:58,744 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-28 12:44:58,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:58,758 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-28 12:44:58,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:44:58,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-28 12:44:58,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:58,760 INFO L225 Difference]: With dead ends: 30 [2019-11-28 12:44:58,760 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 12:44:58,761 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 12:44:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 12:44:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 12:44:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-28 12:44:58,769 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-28 12:44:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:58,769 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-28 12:44:58,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:44:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-28 12:44:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 12:44:58,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:58,772 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:58,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 12:44:58,986 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:58,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:58,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2019-11-28 12:44:58,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:58,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946667590] [2019-11-28 12:44:58,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:59,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 12:44:59,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:59,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:59,276 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:59,411 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946667590] [2019-11-28 12:44:59,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:59,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2019-11-28 12:44:59,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557510673] [2019-11-28 12:44:59,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 12:44:59,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:59,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 12:44:59,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:44:59,414 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 10 states. [2019-11-28 12:44:59,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:59,697 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-28 12:44:59,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 12:44:59,698 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2019-11-28 12:44:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:59,699 INFO L225 Difference]: With dead ends: 50 [2019-11-28 12:44:59,699 INFO L226 Difference]: Without dead ends: 50 [2019-11-28 12:44:59,700 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:44:59,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-28 12:44:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 29. [2019-11-28 12:44:59,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 12:44:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-28 12:44:59,706 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-28 12:44:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:59,706 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-28 12:44:59,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 12:44:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-28 12:44:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 12:44:59,707 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:59,708 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:59,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 12:44:59,926 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:59,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:59,927 INFO L82 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2019-11-28 12:44:59,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:59,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361512317] [2019-11-28 12:44:59,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:45:00,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:45:00,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:00,075 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 12:45:00,076 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:45:00,080 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:45:00,080 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:45:00,081 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:45:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:00,105 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:00,164 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361512317] [2019-11-28 12:45:00,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:45:00,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:45:00,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971285815] [2019-11-28 12:45:00,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:45:00,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:45:00,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:45:00,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:00,166 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-28 12:45:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:45:00,227 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-28 12:45:00,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:45:00,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 12:45:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:45:00,229 INFO L225 Difference]: With dead ends: 35 [2019-11-28 12:45:00,229 INFO L226 Difference]: Without dead ends: 35 [2019-11-28 12:45:00,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-28 12:45:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-28 12:45:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 12:45:00,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-28 12:45:00,236 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-28 12:45:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:45:00,238 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-28 12:45:00,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:45:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-28 12:45:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 12:45:00,239 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:45:00,239 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:45:00,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 12:45:00,440 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:45:00,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:45:00,441 INFO L82 PathProgramCache]: Analyzing trace with hash -27715938, now seen corresponding path program 1 times [2019-11-28 12:45:00,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:45:00,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750216398] [2019-11-28 12:45:00,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:45:00,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 12:45:00,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:00,594 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:00,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750216398] [2019-11-28 12:45:00,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:45:00,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:45:00,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627756676] [2019-11-28 12:45:00,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:45:00,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:45:00,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:45:00,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:00,623 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-28 12:45:00,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:45:00,652 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-28 12:45:00,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:45:00,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 12:45:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:45:00,655 INFO L225 Difference]: With dead ends: 42 [2019-11-28 12:45:00,655 INFO L226 Difference]: Without dead ends: 42 [2019-11-28 12:45:00,656 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:00,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-28 12:45:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-28 12:45:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-28 12:45:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-28 12:45:00,663 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-28 12:45:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:45:00,664 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-28 12:45:00,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:45:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-28 12:45:00,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 12:45:00,665 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:45:00,665 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:45:00,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 12:45:00,876 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:45:00,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:45:00,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2019-11-28 12:45:00,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:45:00,877 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3043342] [2019-11-28 12:45:00,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:45:01,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:45:01,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:01,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:01,032 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:01,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:01,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3043342] [2019-11-28 12:45:01,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 12:45:01,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-28 12:45:01,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875604181] [2019-11-28 12:45:01,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:45:01,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:45:01,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:45:01,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:01,071 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-28 12:45:01,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:45:01,083 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-28 12:45:01,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:45:01,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-28 12:45:01,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:45:01,084 INFO L225 Difference]: With dead ends: 27 [2019-11-28 12:45:01,084 INFO L226 Difference]: Without dead ends: 27 [2019-11-28 12:45:01,085 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-28 12:45:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-28 12:45:01,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 12:45:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-28 12:45:01,089 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-28 12:45:01,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:45:01,089 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-28 12:45:01,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:45:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-28 12:45:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 12:45:01,090 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:45:01,090 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:45:01,299 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 12:45:01,299 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:45:01,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:45:01,300 INFO L82 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2019-11-28 12:45:01,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:45:01,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567563817] [2019-11-28 12:45:01,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:45:01,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 12:45:01,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:45:01,520 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:01,628 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567563817] [2019-11-28 12:45:01,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 12:45:01,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2019-11-28 12:45:01,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578351732] [2019-11-28 12:45:01,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 12:45:01,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:45:01,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 12:45:01,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:45:01,631 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2019-11-28 12:45:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:45:01,883 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2019-11-28 12:45:01,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 12:45:01,883 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-11-28 12:45:01,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:45:01,885 INFO L225 Difference]: With dead ends: 55 [2019-11-28 12:45:01,885 INFO L226 Difference]: Without dead ends: 55 [2019-11-28 12:45:01,886 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-28 12:45:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-28 12:45:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 35. [2019-11-28 12:45:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 12:45:01,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-11-28 12:45:01,891 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-11-28 12:45:01,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:45:01,891 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-11-28 12:45:01,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 12:45:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-11-28 12:45:01,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 12:45:01,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:45:01,893 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:45:02,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-28 12:45:02,095 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:45:02,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:45:02,096 INFO L82 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2019-11-28 12:45:02,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:45:02,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468728872] [2019-11-28 12:45:02,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:45:02,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 12:45:02,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:02,271 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 12:45:02,272 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:45:02,274 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:45:02,274 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:45:02,275 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:45:02,365 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:45:02,366 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-28 12:45:02,368 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:45:02,392 INFO L588 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-28 12:45:02,393 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:45:02,393 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-28 12:45:02,446 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-28 12:45:02,446 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:45:02,457 INFO L588 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-28 12:45:02,458 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 12:45:02,458 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-28 12:45:02,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:45:02,483 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:45:02,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468728872] [2019-11-28 12:45:02,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 12:45:02,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-28 12:45:02,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409748160] [2019-11-28 12:45:02,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 12:45:02,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:45:02,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 12:45:02,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-28 12:45:02,769 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2019-11-28 12:45:05,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:45:05,009 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-28 12:45:05,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 12:45:05,010 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-28 12:45:05,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:45:05,012 INFO L225 Difference]: With dead ends: 50 [2019-11-28 12:45:05,012 INFO L226 Difference]: Without dead ends: 50 [2019-11-28 12:45:05,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-28 12:45:05,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-28 12:45:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-11-28 12:45:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-28 12:45:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-28 12:45:05,028 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-28 12:45:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:45:05,029 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-28 12:45:05,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 12:45:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-28 12:45:05,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 12:45:05,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:45:05,034 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:45:05,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-11-28 12:45:05,235 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:45:05,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:45:05,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2019-11-28 12:45:05,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:45:05,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786436142] [2019-11-28 12:45:05,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:45:05,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 12:45:05,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:05,373 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 12:45:05,373 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:45:05,378 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:45:05,378 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:45:05,379 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-28 12:45:05,495 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-28 12:45:05,496 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:45:05,507 INFO L588 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-28 12:45:05,507 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:45:05,507 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-28 12:45:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:45:05,525 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:05,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:45:05,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786436142] [2019-11-28 12:45:05,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 12:45:05,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-28 12:45:05,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144564062] [2019-11-28 12:45:05,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-28 12:45:05,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:45:05,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-28 12:45:05,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-28 12:45:05,740 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2019-11-28 12:45:06,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:45:06,351 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-11-28 12:45:06,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-28 12:45:06,352 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-28 12:45:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:45:06,353 INFO L225 Difference]: With dead ends: 53 [2019-11-28 12:45:06,353 INFO L226 Difference]: Without dead ends: 53 [2019-11-28 12:45:06,354 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-28 12:45:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-28 12:45:06,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2019-11-28 12:45:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-28 12:45:06,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-28 12:45:06,359 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-28 12:45:06,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:45:06,359 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-28 12:45:06,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-28 12:45:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-28 12:45:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 12:45:06,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:45:06,360 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:45:06,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-11-28 12:45:06,566 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:45:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:45:06,567 INFO L82 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2019-11-28 12:45:06,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:45:06,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506103788] [2019-11-28 12:45:06,569 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:06,692 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 12:45:06,692 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 12:45:06,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 12:45:06,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:06,719 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:45:06,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506103788] [2019-11-28 12:45:06,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 12:45:06,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-28 12:45:06,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267557681] [2019-11-28 12:45:06,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:45:06,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:45:06,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:45:06,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:06,740 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-28 12:45:06,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:45:06,769 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-11-28 12:45:06,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:45:06,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-28 12:45:06,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:45:06,771 INFO L225 Difference]: With dead ends: 43 [2019-11-28 12:45:06,771 INFO L226 Difference]: Without dead ends: 43 [2019-11-28 12:45:06,772 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:45:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-28 12:45:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2019-11-28 12:45:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-28 12:45:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-11-28 12:45:06,777 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2019-11-28 12:45:06,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:45:06,777 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-11-28 12:45:06,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:45:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-11-28 12:45:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-28 12:45:06,778 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:45:06,779 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:45:06,979 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-11-28 12:45:06,980 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:45:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:45:06,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2019-11-28 12:45:06,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:45:06,982 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298848042] [2019-11-28 12:45:06,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-11-28 12:45:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:45:07,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-28 12:45:07,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:45:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-28 12:45:11,340 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:45:16,013 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-11-28 12:45:16,015 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:283) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-28 12:45:16,023 INFO L168 Benchmark]: Toolchain (without parser) took 21566.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.5 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -46.6 MB). Peak memory consumption was 266.9 MB. Max. memory is 11.5 GB. [2019-11-28 12:45:16,024 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:45:16,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -121.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 12:45:16,030 INFO L168 Benchmark]: Boogie Preprocessor took 106.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:45:16,033 INFO L168 Benchmark]: RCFGBuilder took 1598.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.9 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-28 12:45:16,034 INFO L168 Benchmark]: TraceAbstraction took 19012.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 964.9 MB in the beginning and 1.0 GB in the end (delta: -43.4 MB). Peak memory consumption was 146.9 MB. Max. memory is 11.5 GB. [2019-11-28 12:45:16,036 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 841.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -121.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 106.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1598.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.9 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19012.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Free memory was 964.9 MB in the beginning and 1.0 GB in the end (delta: -43.4 MB). Peak memory consumption was 146.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:283) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...