./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f4d5612c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-f4d5612 [2019-11-28 12:44:35,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:44:35,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:44:35,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:44:35,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:44:35,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:44:35,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:44:35,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:44:35,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:44:35,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:44:35,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:44:35,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:44:35,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:44:35,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:44:35,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:44:35,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:44:35,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:44:35,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:44:35,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:44:35,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:44:35,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:44:35,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:44:35,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:44:35,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:44:35,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:44:35,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:44:35,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:44:35,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:44:35,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:44:35,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:44:35,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:44:35,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:44:35,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:44:35,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:44:35,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:44:35,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:44:35,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:44:35,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:44:35,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:44:35,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:44:35,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:44:35,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 12:44:35,475 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:44:35,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:44:35,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:44:35,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:44:35,482 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:44:35,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:44:35,484 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:44:35,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:44:35,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:44:35,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:44:35,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:44:35,485 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:44:35,485 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:44:35,485 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:44:35,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:44:35,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:44:35,487 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:44:35,487 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:44:35,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:44:35,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:44:35,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:44:35,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:44:35,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:44:35,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:44:35,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:44:35,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 12:44:35,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 12:44:35,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2019-11-28 12:44:35,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:44:35,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:44:35,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:44:35,810 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:44:35,811 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:44:35,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-28 12:44:35,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59db449e4/f18cda043b56424ca8c58eb19f282c26/FLAG69ee102b6 [2019-11-28 12:44:36,415 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:44:36,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-28 12:44:36,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59db449e4/f18cda043b56424ca8c58eb19f282c26/FLAG69ee102b6 [2019-11-28 12:44:36,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59db449e4/f18cda043b56424ca8c58eb19f282c26 [2019-11-28 12:44:36,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:44:36,700 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:44:36,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:36,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:44:36,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:44:36,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:36" (1/1) ... [2019-11-28 12:44:36,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6d29e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:36, skipping insertion in model container [2019-11-28 12:44:36,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:36" (1/1) ... [2019-11-28 12:44:36,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:44:36,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:44:37,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:37,276 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-28 12:44:37,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1993c542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:37, skipping insertion in model container [2019-11-28 12:44:37,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:37,277 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 12:44:37,280 INFO L168 Benchmark]: Toolchain (without parser) took 579.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:37,281 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:44:37,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:37,284 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 576.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-f4d5612 [2019-11-28 12:44:39,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:44:39,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:44:39,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:44:39,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:44:39,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:44:39,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:44:39,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:44:39,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:44:39,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:44:39,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:44:39,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:44:39,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:44:39,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:44:39,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:44:39,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:44:39,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:44:39,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:44:39,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:44:39,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:44:39,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:44:39,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:44:39,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:44:39,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:44:39,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:44:39,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:44:39,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:44:39,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:44:39,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:44:39,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:44:39,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:44:39,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:44:39,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:44:39,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:44:39,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:44:39,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:44:39,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:44:39,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:44:39,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:44:39,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:44:39,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:44:39,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 12:44:39,190 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:44:39,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:44:39,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:44:39,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:44:39,194 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:44:39,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:44:39,195 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:44:39,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:44:39,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:44:39,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:44:39,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:44:39,196 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:44:39,197 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:44:39,197 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:44:39,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:44:39,197 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:44:39,198 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 12:44:39,198 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 12:44:39,198 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:44:39,198 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:44:39,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:44:39,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:44:39,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:44:39,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:44:39,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:44:39,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:44:39,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:44:39,201 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 12:44:39,201 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 12:44:39,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 12:44:39,202 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2019-11-28 12:44:39,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:44:39,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:44:39,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:44:39,505 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:44:39,505 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:44:39,507 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-28 12:44:39,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e50a253/46d8ed18641f401b8aa5de4141c4b76f/FLAG789c8e208 [2019-11-28 12:44:40,118 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:44:40,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2019-11-28 12:44:40,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e50a253/46d8ed18641f401b8aa5de4141c4b76f/FLAG789c8e208 [2019-11-28 12:44:40,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e50a253/46d8ed18641f401b8aa5de4141c4b76f [2019-11-28 12:44:40,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:44:40,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:44:40,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:40,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:44:40,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:44:40,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:40" (1/1) ... [2019-11-28 12:44:40,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bb322a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:40, skipping insertion in model container [2019-11-28 12:44:40,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:40" (1/1) ... [2019-11-28 12:44:40,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:44:40,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:44:40,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:40,960 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 12:44:40,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:44:41,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:41,039 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 12:44:41,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:44:41,205 INFO L208 MainTranslator]: Completed translation [2019-11-28 12:44:41,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41 WrapperNode [2019-11-28 12:44:41,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:44:41,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 12:44:41,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 12:44:41,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 12:44:41,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... [2019-11-28 12:44:41,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... [2019-11-28 12:44:41,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... [2019-11-28 12:44:41,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... [2019-11-28 12:44:41,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... [2019-11-28 12:44:41,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... [2019-11-28 12:44:41,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... [2019-11-28 12:44:41,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 12:44:41,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 12:44:41,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 12:44:41,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 12:44:41,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:44:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 12:44:41,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 12:44:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-28 12:44:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 12:44:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 12:44:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 12:44:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 12:44:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 12:44:41,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 12:44:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-28 12:44:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-28 12:44:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-28 12:44:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-28 12:44:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-28 12:44:41,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-28 12:44:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-28 12:44:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-28 12:44:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-28 12:44:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-28 12:44:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-28 12:44:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-28 12:44:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-28 12:44:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-28 12:44:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-28 12:44:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-28 12:44:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-28 12:44:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-28 12:44:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-28 12:44:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-28 12:44:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-28 12:44:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-28 12:44:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-28 12:44:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-28 12:44:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-28 12:44:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-28 12:44:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-28 12:44:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 12:44:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-28 12:44:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-28 12:44:41,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-28 12:44:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 12:44:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 12:44:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 12:44:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 12:44:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 12:44:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 12:44:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 12:44:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 12:44:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 12:44:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 12:44:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 12:44:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 12:44:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 12:44:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 12:44:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 12:44:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 12:44:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 12:44:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 12:44:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 12:44:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 12:44:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 12:44:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 12:44:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 12:44:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 12:44:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 12:44:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 12:44:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 12:44:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 12:44:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 12:44:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 12:44:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 12:44:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 12:44:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 12:44:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 12:44:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 12:44:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 12:44:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 12:44:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 12:44:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 12:44:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 12:44:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 12:44:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 12:44:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 12:44:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 12:44:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 12:44:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 12:44:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 12:44:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 12:44:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 12:44:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 12:44:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 12:44:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 12:44:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 12:44:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 12:44:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 12:44:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 12:44:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 12:44:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 12:44:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 12:44:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 12:44:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 12:44:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 12:44:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 12:44:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 12:44:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 12:44:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 12:44:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 12:44:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 12:44:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 12:44:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 12:44:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 12:44:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 12:44:41,404 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 12:44:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 12:44:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 12:44:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 12:44:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 12:44:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 12:44:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 12:44:41,405 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 12:44:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 12:44:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 12:44:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 12:44:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 12:44:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 12:44:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 12:44:41,406 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 12:44:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 12:44:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 12:44:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 12:44:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 12:44:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 12:44:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 12:44:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-28 12:44:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 12:44:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-28 12:44:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-28 12:44:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-28 12:44:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-28 12:44:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-28 12:44:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 12:44:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 12:44:41,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-28 12:44:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-28 12:44:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-28 12:44:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-28 12:44:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-28 12:44:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-28 12:44:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 12:44:41,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-28 12:44:41,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-28 12:44:41,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-28 12:44:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-28 12:44:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-28 12:44:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-28 12:44:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-28 12:44:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-28 12:44:41,414 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-28 12:44:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-28 12:44:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-28 12:44:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 12:44:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 12:44:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 12:44:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 12:44:41,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 12:44:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 12:44:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-28 12:44:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-28 12:44:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-28 12:44:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-28 12:44:42,063 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-28 12:44:42,512 WARN L738 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-28 12:44:42,874 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 12:44:42,875 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 12:44:42,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:42 BoogieIcfgContainer [2019-11-28 12:44:42,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 12:44:42,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 12:44:42,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 12:44:42,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 12:44:42,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:44:40" (1/3) ... [2019-11-28 12:44:42,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd69553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:44:42, skipping insertion in model container [2019-11-28 12:44:42,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:41" (2/3) ... [2019-11-28 12:44:42,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd69553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:44:42, skipping insertion in model container [2019-11-28 12:44:42,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:42" (3/3) ... [2019-11-28 12:44:42,891 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2019-11-28 12:44:42,901 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 12:44:42,910 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-28 12:44:42,922 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-28 12:44:42,938 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 12:44:42,938 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 12:44:42,938 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 12:44:42,939 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 12:44:42,939 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 12:44:42,939 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 12:44:42,939 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 12:44:42,939 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 12:44:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2019-11-28 12:44:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 12:44:42,968 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:42,970 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:42,971 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:42,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:42,977 INFO L82 PathProgramCache]: Analyzing trace with hash 927863930, now seen corresponding path program 1 times [2019-11-28 12:44:42,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:42,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538307405] [2019-11-28 12:44:42,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:43,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:44:43,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:43,232 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:43,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538307405] [2019-11-28 12:44:43,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:43,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-28 12:44:43,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806494831] [2019-11-28 12:44:43,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:44:43,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:43,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:44:43,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:43,354 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2019-11-28 12:44:43,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:43,399 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-11-28 12:44:43,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:44:43,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-28 12:44:43,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:43,412 INFO L225 Difference]: With dead ends: 42 [2019-11-28 12:44:43,412 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 12:44:43,414 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:43,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 12:44:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2019-11-28 12:44:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 12:44:43,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-11-28 12:44:43,462 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2019-11-28 12:44:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:43,463 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-11-28 12:44:43,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:44:43,463 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-11-28 12:44:43,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 12:44:43,465 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:43,465 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:43,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 12:44:43,680 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:43,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1624293031, now seen corresponding path program 1 times [2019-11-28 12:44:43,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:43,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736175716] [2019-11-28 12:44:43,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:43,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 12:44:43,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:43,849 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:43,932 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736175716] [2019-11-28 12:44:43,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:43,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 12:44:43,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325541868] [2019-11-28 12:44:43,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 12:44:43,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:43,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 12:44:43,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 12:44:43,936 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 3 states. [2019-11-28 12:44:44,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:44,008 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2019-11-28 12:44:44,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 12:44:44,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-28 12:44:44,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:44,009 INFO L225 Difference]: With dead ends: 40 [2019-11-28 12:44:44,010 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 12:44:44,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 12:44:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 12:44:44,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2019-11-28 12:44:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 12:44:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-28 12:44:44,025 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2019-11-28 12:44:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:44,025 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-28 12:44:44,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 12:44:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-28 12:44:44,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 12:44:44,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:44,027 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:44,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 12:44:44,231 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:44,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1911181477, now seen corresponding path program 1 times [2019-11-28 12:44:44,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:44,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008572730] [2019-11-28 12:44:44,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:44,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:44:44,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:44,443 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:44,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008572730] [2019-11-28 12:44:44,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:44,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:44:44,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504753801] [2019-11-28 12:44:44,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:44:44,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:44,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:44:44,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:44,515 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2019-11-28 12:44:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:44,530 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-11-28 12:44:44,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:44:44,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-28 12:44:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:44,532 INFO L225 Difference]: With dead ends: 24 [2019-11-28 12:44:44,532 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 12:44:44,532 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:44,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 12:44:44,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 12:44:44,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 12:44:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-11-28 12:44:44,537 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2019-11-28 12:44:44,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:44,537 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-11-28 12:44:44,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:44:44,538 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-11-28 12:44:44,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 12:44:44,539 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:44,539 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:44,751 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 12:44:44,752 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:44,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:44,752 INFO L82 PathProgramCache]: Analyzing trace with hash 882916751, now seen corresponding path program 1 times [2019-11-28 12:44:44,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:44,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685830996] [2019-11-28 12:44:44,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:44,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 12:44:44,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 12:44:45,059 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:45,199 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685830996] [2019-11-28 12:44:45,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:45,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2019-11-28 12:44:45,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582649819] [2019-11-28 12:44:45,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 12:44:45,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:45,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 12:44:45,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:44:45,201 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 10 states. [2019-11-28 12:44:45,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:45,458 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2019-11-28 12:44:45,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 12:44:45,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2019-11-28 12:44:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:45,462 INFO L225 Difference]: With dead ends: 38 [2019-11-28 12:44:45,462 INFO L226 Difference]: Without dead ends: 38 [2019-11-28 12:44:45,462 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:44:45,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-28 12:44:45,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2019-11-28 12:44:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 12:44:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-28 12:44:45,474 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2019-11-28 12:44:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:45,475 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-28 12:44:45,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 12:44:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-28 12:44:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 12:44:45,476 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:45,476 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:45,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 12:44:45,688 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:45,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1600615901, now seen corresponding path program 1 times [2019-11-28 12:44:45,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:45,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212120334] [2019-11-28 12:44:45,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:45,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 12:44:45,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:45,856 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 12:44:45,856 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:44:45,860 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:44:45,860 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:44:45,861 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:44:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:45,884 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:45,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:45,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212120334] [2019-11-28 12:44:45,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:45,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:44:45,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145196542] [2019-11-28 12:44:45,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:44:45,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:45,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:44:45,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:45,935 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 5 states. [2019-11-28 12:44:45,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:45,987 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-28 12:44:45,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:44:45,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 12:44:45,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:45,988 INFO L225 Difference]: With dead ends: 29 [2019-11-28 12:44:45,989 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 12:44:45,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 12:44:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 12:44:45,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 12:44:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-28 12:44:45,994 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2019-11-28 12:44:45,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:45,994 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-28 12:44:45,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:44:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-28 12:44:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 12:44:45,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:45,996 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:46,196 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-28 12:44:46,197 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:46,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:46,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1806847714, now seen corresponding path program 1 times [2019-11-28 12:44:46,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:46,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132347605] [2019-11-28 12:44:46,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:44:46,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 12:44:46,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:44:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:46,339 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:44:46,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 12:44:46,367 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132347605] [2019-11-28 12:44:46,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:44:46,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:44:46,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163779162] [2019-11-28 12:44:46,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:44:46,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:44:46,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:44:46,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:46,370 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 5 states. [2019-11-28 12:44:46,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:44:46,394 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2019-11-28 12:44:46,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:44:46,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 12:44:46,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:44:46,395 INFO L225 Difference]: With dead ends: 30 [2019-11-28 12:44:46,395 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 12:44:46,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:44:46,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 12:44:46,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-11-28 12:44:46,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 12:44:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-28 12:44:46,399 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 22 [2019-11-28 12:44:46,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:44:46,400 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-28 12:44:46,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:44:46,400 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-28 12:44:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 12:44:46,401 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:44:46,401 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:44:46,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-28 12:44:46,611 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-28 12:44:46,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:44:46,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1221784944, now seen corresponding path program 1 times [2019-11-28 12:44:46,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:44:46,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147285115] [2019-11-28 12:44:46,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-11-28 12:44:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 12:44:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 12:44:46,828 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 12:44:46,828 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 12:44:47,029 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-28 12:44:47,041 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 12:44:47,047 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-28 12:44:47,047 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 7bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-28 12:44:47,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:44:47 BoogieIcfgContainer [2019-11-28 12:44:47,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 12:44:47,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 12:44:47,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 12:44:47,057 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 12:44:47,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:42" (3/4) ... [2019-11-28 12:44:47,061 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 12:44:47,061 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 12:44:47,062 INFO L168 Benchmark]: Toolchain (without parser) took 6663.06 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 227.5 MB). Free memory was 956.3 MB in the beginning and 968.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 215.7 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:47,063 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:44:47,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:47,064 INFO L168 Benchmark]: Boogie Preprocessor took 111.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:44:47,065 INFO L168 Benchmark]: RCFGBuilder took 1559.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.8 MB in the end (delta: 111.0 MB). Peak memory consumption was 111.0 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:47,066 INFO L168 Benchmark]: TraceAbstraction took 4176.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 76.0 MB). Free memory was 995.8 MB in the beginning and 968.2 MB in the end (delta: 27.6 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. [2019-11-28 12:44:47,066 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 1.3 GB. Free memory is still 968.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:44:47,069 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 805.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 111.99 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 1559.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.8 MB in the end (delta: 111.0 MB). Peak memory consumption was 111.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4176.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 76.0 MB). Free memory was 995.8 MB in the beginning and 968.2 MB in the end (delta: 27.6 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.17 ms. Allocated memory is still 1.3 GB. Free memory is still 968.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 3bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 7bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483641:0}] [L765] CALL entry_point() VAL [ldv_global_msg_list={-2147483641:0}] [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483641:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=4, \result={-2147483643:0}, ldv_global_msg_list={-2147483641:0}, malloc(size)={-2147483643:0}, size=4] [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483641:0}, ldv_malloc(sizeof(int))={-2147483643:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) VAL [ldv_global_msg_list={-2147483641:0}, p={-2147483643:0}] [L760] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483641:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=4, \result={5:0}, ldv_global_msg_list={-2147483641:0}, malloc(size)={5:0}, size=4] [L760] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483641:0}, ldv_malloc(sizeof(int))={5:0}, p={-2147483643:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={-2147483641:0}, p={-2147483643:0}, q={5:0}] [L761] free(q) VAL [ldv_global_msg_list={-2147483641:0}, p={-2147483643:0}, q={5:0}] [L761] free(q) [L765] RET entry_point() VAL [ldv_global_msg_list={-2147483641:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 338 locations, 74 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 59 SDslu, 343 SDs, 0 SdLazy, 165 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 45 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 12 QuantifiedInterpolants, 10074 SizeOfPredicates, 6 NumberOfNonLiveVariables, 471 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 32/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...