./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3d056a1f 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_test16.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash f9e4b987fddd5be88447132dcb5136b5a374e8f5 ......................................................................................................................... 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_test16.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash f9e4b987fddd5be88447132dcb5136b5a374e8f5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-3d056a1 [2019-11-22 13:44:47,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:44:47,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:44:47,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:44:47,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:44:47,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:44:47,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:44:47,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:44:47,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:44:47,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:44:47,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:44:47,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:44:47,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:44:47,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:44:47,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:44:47,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:44:47,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:44:47,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:44:47,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:44:47,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:44:47,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:44:47,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:44:47,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:44:47,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:44:47,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:44:47,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:44:47,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:44:47,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:44:47,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:44:47,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:44:47,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:44:47,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:44:47,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:44:47,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:44:47,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:44:47,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:44:47,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:44:47,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:44:47,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:44:47,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:44:47,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:44:47,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-22 13:44:47,346 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:44:47,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:44:47,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:44:47,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:44:47,350 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:44:47,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:44:47,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:44:47,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:44:47,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:44:47,351 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:44:47,353 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:44:47,353 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:44:47,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:44:47,354 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:44:47,354 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:44:47,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:44:47,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:44:47,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:44:47,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:44:47,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:44:47,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:44:47,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:44:47,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 13:44:47,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 13:44:47,357 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9e4b987fddd5be88447132dcb5136b5a374e8f5 [2019-11-22 13:44:47,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:44:47,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:44:47,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:44:47,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:44:47,711 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:44:47,712 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2019-11-22 13:44:47,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac34843e/31a577a4f1f448afb6500a8f26f336c3/FLAG944f9e825 [2019-11-22 13:44:48,385 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:44:48,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2019-11-22 13:44:48,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac34843e/31a577a4f1f448afb6500a8f26f336c3/FLAG944f9e825 [2019-11-22 13:44:48,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac34843e/31a577a4f1f448afb6500a8f26f336c3 [2019-11-22 13:44:48,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:44:48,650 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:44:48,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:44:48,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:44:48,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:44:48,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:48" (1/1) ... [2019-11-22 13:44:48,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2dc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:48, skipping insertion in model container [2019-11-22 13:44:48,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:48" (1/1) ... [2019-11-22 13:44:48,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:44:48,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:44:49,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:44:49,244 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) [2019-11-22 13:44:49,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3db6ec30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:49, skipping insertion in model container [2019-11-22 13:44:49,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:44:49,246 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-22 13:44:49,248 INFO L168 Benchmark]: Toolchain (without parser) took 597.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:49,249 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-22 13:44:49,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:44:49,252 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 594.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 577]: 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 0.1.24-3d056a1 [2019-11-22 13:44:51,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:44:51,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:44:51,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:44:51,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:44:51,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:44:51,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:44:51,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:44:51,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:44:51,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:44:51,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:44:51,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:44:51,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:44:51,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:44:51,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:44:51,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:44:51,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:44:51,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:44:51,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:44:51,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:44:51,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:44:51,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:44:51,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:44:51,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:44:51,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:44:51,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:44:51,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:44:51,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:44:51,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:44:51,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:44:51,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:44:51,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:44:51,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:44:51,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:44:51,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:44:51,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:44:51,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:44:51,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:44:51,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:44:51,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:44:51,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:44:51,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 13:44:51,197 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:44:51,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:44:51,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:44:51,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:44:51,200 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:44:51,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:44:51,200 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 13:44:51,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:44:51,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:44:51,201 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 13:44:51,202 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 13:44:51,202 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 13:44:51,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:44:51,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:44:51,203 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 13:44:51,203 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 13:44:51,204 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:44:51,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:44:51,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:44:51,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:44:51,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:44:51,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:44:51,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:44:51,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:44:51,206 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 13:44:51,206 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 13:44:51,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:44:51,206 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9e4b987fddd5be88447132dcb5136b5a374e8f5 [2019-11-22 13:44:51,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:44:51,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:44:51,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:44:51,558 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:44:51,559 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:44:51,559 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2019-11-22 13:44:51,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7544d402/344895adff4a486c889878d368303313/FLAG585d70898 [2019-11-22 13:44:52,234 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:44:52,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2019-11-22 13:44:52,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7544d402/344895adff4a486c889878d368303313/FLAG585d70898 [2019-11-22 13:44:52,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7544d402/344895adff4a486c889878d368303313 [2019-11-22 13:44:52,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:44:52,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 13:44:52,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:44:52,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:44:52,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:44:52,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:52" (1/1) ... [2019-11-22 13:44:52,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f2aa46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:52, skipping insertion in model container [2019-11-22 13:44:52,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:52" (1/1) ... [2019-11-22 13:44:52,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:44:52,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:44:53,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:44:53,066 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 13:44:53,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:44:53,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:44:53,208 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 13:44:53,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:44:53,355 INFO L208 MainTranslator]: Completed translation [2019-11-22 13:44:53,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53 WrapperNode [2019-11-22 13:44:53,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:44:53,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 13:44:53,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 13:44:53,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 13:44:53,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2019-11-22 13:44:53,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2019-11-22 13:44:53,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2019-11-22 13:44:53,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2019-11-22 13:44:53,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2019-11-22 13:44:53,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2019-11-22 13:44:53,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2019-11-22 13:44:53,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 13:44:53,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 13:44:53,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 13:44:53,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 13:44:53,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (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 [2019-11-22 13:44:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 13:44:53,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 13:44:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:44:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:44:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 13:44:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 13:44:53,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 13:44:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 13:44:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 13:44:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 13:44:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 13:44:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 13:44:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 13:44:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:44:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 13:44:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 13:44:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 13:44:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 13:44:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 13:44:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 13:44:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 13:44:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 13:44:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 13:44:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 13:44:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 13:44:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 13:44:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 13:44:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 13:44:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 13:44:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 13:44:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 13:44:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 13:44:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 13:44:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 13:44:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 13:44:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 13:44:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 13:44:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 13:44:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 13:44:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 13:44:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 13:44:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 13:44:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2019-11-22 13:44:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2019-11-22 13:44:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 13:44:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 13:44:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 13:44:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 13:44:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 13:44:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 13:44:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 13:44:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 13:44:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 13:44:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 13:44:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 13:44:53,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 13:44:53,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 13:44:53,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 13:44:53,550 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 13:44:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 13:44:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 13:44:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 13:44:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 13:44:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 13:44:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 13:44:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 13:44:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 13:44:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 13:44:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 13:44:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 13:44:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 13:44:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 13:44:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 13:44:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 13:44:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 13:44:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 13:44:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 13:44:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 13:44:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 13:44:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 13:44:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 13:44:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 13:44:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 13:44:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 13:44:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 13:44:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 13:44:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 13:44:53,561 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 13:44:53,561 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 13:44:53,561 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 13:44:53,561 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 13:44:53,561 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 13:44:53,562 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 13:44:53,562 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 13:44:53,562 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 13:44:53,562 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 13:44:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 13:44:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 13:44:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 13:44:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 13:44:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 13:44:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 13:44:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 13:44:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 13:44:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 13:44:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 13:44:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 13:44:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 13:44:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 13:44:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 13:44:53,566 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 13:44:53,566 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 13:44:53,566 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 13:44:53,566 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 13:44:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 13:44:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 13:44:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 13:44:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 13:44:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 13:44:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 13:44:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 13:44:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 13:44:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 13:44:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 13:44:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 13:44:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 13:44:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 13:44:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 13:44:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 13:44:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 13:44:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 13:44:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 13:44:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 13:44:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 13:44:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 13:44:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 13:44:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 13:44:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 13:44:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 13:44:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 13:44:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 13:44:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 13:44:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 13:44:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 13:44:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 13:44:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 13:44:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 13:44:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 13:44:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 13:44:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 13:44:53,590 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 13:44:53,591 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 13:44:53,591 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 13:44:53,591 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 13:44:53,591 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 13:44:53,591 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 13:44:53,592 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 13:44:53,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 13:44:53,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 13:44:53,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 13:44:53,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 13:44:53,592 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 13:44:53,593 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 13:44:53,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 13:44:53,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 13:44:53,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 13:44:53,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 13:44:53,594 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 13:44:53,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 13:44:53,594 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 13:44:53,594 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 13:44:53,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 13:44:53,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 13:44:53,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 13:44:53,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 13:44:53,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 13:44:53,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 13:44:53,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 13:44:53,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 13:44:53,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 13:44:53,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 13:44:53,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 13:44:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 13:44:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 13:44:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 13:44:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 13:44:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 13:44:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 13:44:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 13:44:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 13:44:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 13:44:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 13:44:53,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 13:44:53,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 13:44:53,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 13:44:53,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 13:44:53,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 13:44:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 13:44:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 13:44:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 13:44:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 13:44:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 13:44:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 13:44:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 13:44:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2019-11-22 13:44:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2019-11-22 13:44:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 13:44:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 13:44:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 13:44:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 13:44:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 13:44:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 13:44:53,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 13:44:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 13:44:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 13:44:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 13:44:53,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 13:44:54,329 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:44:54,711 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 13:44:55,050 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 13:44:55,050 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 13:44:55,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:55 BoogieIcfgContainer [2019-11-22 13:44:55,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 13:44:55,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 13:44:55,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 13:44:55,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 13:44:55,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:44:52" (1/3) ... [2019-11-22 13:44:55,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baba5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:55, skipping insertion in model container [2019-11-22 13:44:55,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (2/3) ... [2019-11-22 13:44:55,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baba5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:55, skipping insertion in model container [2019-11-22 13:44:55,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:55" (3/3) ... [2019-11-22 13:44:55,061 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test16.i [2019-11-22 13:44:55,072 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 13:44:55,082 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-22 13:44:55,095 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-22 13:44:55,118 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 13:44:55,118 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 13:44:55,119 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 13:44:55,119 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 13:44:55,119 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 13:44:55,119 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 13:44:55,120 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 13:44:55,120 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 13:44:55,140 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2019-11-22 13:44:55,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 13:44:55,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:55,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:44:55,154 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:44:55,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:55,161 INFO L82 PathProgramCache]: Analyzing trace with hash 997159282, now seen corresponding path program 1 times [2019-11-22 13:44:55,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:55,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1457704737] [2019-11-22 13:44:55,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:55,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:44:55,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:55,622 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:55,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1457704737] [2019-11-22 13:44:55,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:44:55,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-22 13:44:55,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062303994] [2019-11-22 13:44:55,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 13:44:55,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:55,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 13:44:55,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-22 13:44:55,786 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 8 states. [2019-11-22 13:44:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:55,957 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2019-11-22 13:44:55,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-22 13:44:55,961 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-22 13:44:55,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:55,980 INFO L225 Difference]: With dead ends: 49 [2019-11-22 13:44:55,981 INFO L226 Difference]: Without dead ends: 46 [2019-11-22 13:44:55,984 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:44:56,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-22 13:44:56,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2019-11-22 13:44:56,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 13:44:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2019-11-22 13:44:56,068 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 17 [2019-11-22 13:44:56,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:56,068 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2019-11-22 13:44:56,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 13:44:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2019-11-22 13:44:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 13:44:56,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:56,070 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:44:56,282 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:56,283 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:44:56,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:56,285 INFO L82 PathProgramCache]: Analyzing trace with hash 965683329, now seen corresponding path program 1 times [2019-11-22 13:44:56,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:56,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [170221250] [2019-11-22 13:44:56,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:56,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-22 13:44:56,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:56,607 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:56,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [170221250] [2019-11-22 13:44:56,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:44:56,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 13:44:56,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401779109] [2019-11-22 13:44:56,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 13:44:56,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:56,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 13:44:56,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:44:56,715 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 3 states. [2019-11-22 13:44:56,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:56,789 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2019-11-22 13:44:56,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 13:44:56,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-22 13:44:56,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:56,792 INFO L225 Difference]: With dead ends: 54 [2019-11-22 13:44:56,792 INFO L226 Difference]: Without dead ends: 43 [2019-11-22 13:44:56,793 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 13:44:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-22 13:44:56,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-11-22 13:44:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-22 13:44:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2019-11-22 13:44:56,818 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2019-11-22 13:44:56,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:56,818 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2019-11-22 13:44:56,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 13:44:56,819 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2019-11-22 13:44:56,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-22 13:44:56,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:56,820 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:44:57,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:57,025 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:44:57,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:57,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1103285257, now seen corresponding path program 1 times [2019-11-22 13:44:57,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:57,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1611775820] [2019-11-22 13:44:57,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:57,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 13:44:57,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:57,396 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:57,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1611775820] [2019-11-22 13:44:57,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:44:57,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-22 13:44:57,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936783783] [2019-11-22 13:44:57,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 13:44:57,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:57,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 13:44:57,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-22 13:44:57,487 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 9 states. [2019-11-22 13:44:57,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:57,537 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-22 13:44:57,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 13:44:57,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2019-11-22 13:44:57,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:57,541 INFO L225 Difference]: With dead ends: 42 [2019-11-22 13:44:57,541 INFO L226 Difference]: Without dead ends: 42 [2019-11-22 13:44:57,541 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:44:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-22 13:44:57,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-22 13:44:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 13:44:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2019-11-22 13:44:57,549 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 23 [2019-11-22 13:44:57,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:57,549 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2019-11-22 13:44:57,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 13:44:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2019-11-22 13:44:57,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-22 13:44:57,550 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:57,551 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:44:57,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:57,753 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:44:57,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:57,754 INFO L82 PathProgramCache]: Analyzing trace with hash 157895800, now seen corresponding path program 1 times [2019-11-22 13:44:57,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:57,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1139009935] [2019-11-22 13:44:57,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:57,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 13:44:57,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:58,078 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:58,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1139009935] [2019-11-22 13:44:58,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:44:58,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-22 13:44:58,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064009691] [2019-11-22 13:44:58,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 13:44:58,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:58,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 13:44:58,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-22 13:44:58,225 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 9 states. [2019-11-22 13:44:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:58,480 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2019-11-22 13:44:58,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 13:44:58,481 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-22 13:44:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:58,482 INFO L225 Difference]: With dead ends: 54 [2019-11-22 13:44:58,482 INFO L226 Difference]: Without dead ends: 52 [2019-11-22 13:44:58,483 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:44:58,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-22 13:44:58,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2019-11-22 13:44:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-22 13:44:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2019-11-22 13:44:58,489 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 24 [2019-11-22 13:44:58,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:58,489 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2019-11-22 13:44:58,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 13:44:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2019-11-22 13:44:58,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-22 13:44:58,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:58,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:44:58,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:58,694 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:44:58,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:58,694 INFO L82 PathProgramCache]: Analyzing trace with hash 286978519, now seen corresponding path program 1 times [2019-11-22 13:44:58,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:58,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [362868269] [2019-11-22 13:44:58,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:44:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:58,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 13:44:58,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:59,025 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:44:59,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [362868269] [2019-11-22 13:44:59,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:44:59,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2019-11-22 13:44:59,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651846460] [2019-11-22 13:44:59,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-22 13:44:59,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:59,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-22 13:44:59,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2019-11-22 13:44:59,258 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 17 states. [2019-11-22 13:44:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:59,931 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2019-11-22 13:44:59,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-22 13:44:59,932 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 24 [2019-11-22 13:44:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:59,933 INFO L225 Difference]: With dead ends: 48 [2019-11-22 13:44:59,933 INFO L226 Difference]: Without dead ends: 48 [2019-11-22 13:44:59,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2019-11-22 13:44:59,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-22 13:44:59,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2019-11-22 13:44:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-22 13:44:59,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2019-11-22 13:44:59,946 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 24 [2019-11-22 13:44:59,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:59,946 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2019-11-22 13:44:59,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-22 13:44:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2019-11-22 13:44:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 13:44:59,948 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:59,948 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:00,151 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:00,152 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash 599802905, now seen corresponding path program 1 times [2019-11-22 13:45:00,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:00,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [72265443] [2019-11-22 13:45:00,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:00,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-22 13:45:00,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:00,428 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 [2019-11-22 13:45:00,429 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:00,432 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:00,432 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 13:45:00,432 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 13:45:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:00,493 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:00,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [72265443] [2019-11-22 13:45:00,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:00,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-22 13:45:00,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885373958] [2019-11-22 13:45:00,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 13:45:00,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:00,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 13:45:00,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-22 13:45:00,607 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 9 states. [2019-11-22 13:45:00,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:00,755 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2019-11-22 13:45:00,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 13:45:00,755 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2019-11-22 13:45:00,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:00,757 INFO L225 Difference]: With dead ends: 49 [2019-11-22 13:45:00,757 INFO L226 Difference]: Without dead ends: 49 [2019-11-22 13:45:00,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-22 13:45:00,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-22 13:45:00,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2019-11-22 13:45:00,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-22 13:45:00,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2019-11-22 13:45:00,764 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 25 [2019-11-22 13:45:00,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:00,764 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2019-11-22 13:45:00,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 13:45:00,765 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2019-11-22 13:45:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-22 13:45:00,765 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:00,766 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:00,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:00,969 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:00,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1123950726, now seen corresponding path program 1 times [2019-11-22 13:45:00,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:00,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [749742648] [2019-11-22 13:45:00,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:01,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:45:01,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:01,250 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:01,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [749742648] [2019-11-22 13:45:01,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:45:01,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-22 13:45:01,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474621839] [2019-11-22 13:45:01,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 13:45:01,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:45:01,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 13:45:01,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-22 13:45:01,457 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 9 states. [2019-11-22 13:45:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:45:01,540 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-11-22 13:45:01,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-22 13:45:01,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2019-11-22 13:45:01,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:45:01,542 INFO L225 Difference]: With dead ends: 47 [2019-11-22 13:45:01,542 INFO L226 Difference]: Without dead ends: 45 [2019-11-22 13:45:01,543 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-11-22 13:45:01,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-22 13:45:01,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2019-11-22 13:45:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-22 13:45:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-11-22 13:45:01,547 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2019-11-22 13:45:01,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:45:01,547 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-11-22 13:45:01,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 13:45:01,548 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-11-22 13:45:01,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-22 13:45:01,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:45:01,549 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:45:01,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:01,753 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, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 13:45:01,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:45:01,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2141245867, now seen corresponding path program 1 times [2019-11-22 13:45:01,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:45:01,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [29614885] [2019-11-22 13:45:01,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:45:02,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-22 13:45:02,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:45:02,060 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 13:45:02,061 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 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-22 13:45:02,061 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 13:45:02,080 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-22 13:45:02,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:45:02,083 INFO L496 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. [2019-11-22 13:45:02,083 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-22 13:45:02,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:45:02,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:45:02,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:45:02,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:45:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 13:45:10,393 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:45:16,845 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 13:45:16,846 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:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) 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.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 13:45:16,854 INFO L168 Benchmark]: Toolchain (without parser) took 24358.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.2 MB). Free memory was 955.0 MB in the beginning and 1.2 GB in the end (delta: -217.9 MB). Peak memory consumption was 89.3 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:16,855 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:45:16,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:16,856 INFO L168 Benchmark]: Boogie Preprocessor took 100.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:45:16,857 INFO L168 Benchmark]: RCFGBuilder took 1594.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.1 MB in the end (delta: 117.7 MB). Peak memory consumption was 117.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:16,858 INFO L168 Benchmark]: TraceAbstraction took 21799.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 971.1 MB in the beginning and 1.2 GB in the end (delta: -201.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:45:16,861 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 855.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 100.28 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 1594.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.1 MB in the end (delta: 117.7 MB). Peak memory consumption was 117.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21799.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 971.1 MB in the beginning and 1.2 GB in the end (delta: -201.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...