./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test16_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 61683ce69ab6e0be34131bf5e9c8287c381247ab ................................................................................................................................... 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 -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test16_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 61683ce69ab6e0be34131bf5e9c8287c381247ab ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:11:01,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:11:01,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:11:01,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:11:01,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:11:01,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:11:01,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:11:01,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:11:01,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:11:01,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:11:01,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:11:01,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:11:01,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:11:01,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:11:01,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:11:01,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:11:01,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:11:01,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:11:01,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:11:01,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:11:01,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:11:01,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:11:01,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:11:01,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:11:01,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:11:01,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:11:01,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:11:01,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:11:01,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:11:01,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:11:01,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:11:01,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:11:01,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:11:01,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:11:01,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:11:01,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:11:01,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:11:01,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:11:01,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:11:01,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:11:01,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:11:01,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:11:01,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:11:01,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:11:01,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:11:01,787 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:11:01,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:11:01,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:11:01,789 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:11:01,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:11:01,789 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:11:01,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:11:01,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:11:01,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:11:01,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:11:01,790 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:11:01,791 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:11:01,791 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:11:01,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:11:01,791 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:11:01,791 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:11:01,791 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:11:01,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:11:01,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:11:01,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:11:01,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:11:01,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:11:01,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:11:01,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:11:01,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:11:01,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:11:01,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61683ce69ab6e0be34131bf5e9c8287c381247ab [2021-08-27 06:11:02,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:11:02,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:11:02,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:11:02,059 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:11:02,059 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:11:02,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2021-08-27 06:11:02,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203cce4d7/79d669260fd246a18d5406e90a7ef4c6/FLAG5f78acbae [2021-08-27 06:11:02,460 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:11:02,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2021-08-27 06:11:02,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203cce4d7/79d669260fd246a18d5406e90a7ef4c6/FLAG5f78acbae [2021-08-27 06:11:02,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203cce4d7/79d669260fd246a18d5406e90a7ef4c6 [2021-08-27 06:11:02,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:11:02,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:11:02,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:11:02,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:11:02,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:11:02,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:11:02" (1/1) ... [2021-08-27 06:11:02,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5274bb9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:02, skipping insertion in model container [2021-08-27 06:11:02,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:11:02" (1/1) ... [2021-08-27 06:11:02,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:11:02,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:11:03,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:11:03,164 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) [2021-08-27 06:11:03,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4a8e9daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:03, skipping insertion in model container [2021-08-27 06:11:03,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:11:03,165 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:11:03,167 INFO L168 Benchmark]: Toolchain (without parser) took 325.34 ms. Allocated memory is still 58.7 MB. Free memory was 35.6 MB in the beginning and 38.9 MB in the end (delta: -3.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:11:03,168 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 39.4 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:11:03,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.06 ms. Allocated memory is still 58.7 MB. Free memory was 35.4 MB in the beginning and 38.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:11:03,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 39.4 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.06 ms. Allocated memory is still 58.7 MB. Free memory was 35.4 MB in the beginning and 38.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:11:04,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:11:04,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:11:04,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:11:04,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:11:04,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:11:04,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:11:04,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:11:04,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:11:04,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:11:04,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:11:04,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:11:04,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:11:04,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:11:04,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:11:04,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:11:04,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:11:04,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:11:04,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:11:04,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:11:04,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:11:04,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:11:04,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:11:04,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:11:04,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:11:04,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:11:04,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:11:04,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:11:04,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:11:04,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:11:04,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:11:04,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:11:04,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:11:04,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:11:04,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:11:04,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:11:04,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:11:04,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:11:04,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:11:04,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:11:04,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:11:04,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:11:04,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:11:04,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:11:04,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:11:04,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:11:04,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:11:04,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:11:04,570 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:11:04,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:11:04,570 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:11:04,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:11:04,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:11:04,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:11:04,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:11:04,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:11:04,573 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61683ce69ab6e0be34131bf5e9c8287c381247ab [2021-08-27 06:11:04,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:11:04,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:11:04,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:11:04,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:11:04,834 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:11:04,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2021-08-27 06:11:04,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b05f063/f974a4c122f84e6b8148efa1640ee852/FLAG2bcb80b1b [2021-08-27 06:11:05,288 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:11:05,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2021-08-27 06:11:05,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b05f063/f974a4c122f84e6b8148efa1640ee852/FLAG2bcb80b1b [2021-08-27 06:11:05,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b05f063/f974a4c122f84e6b8148efa1640ee852 [2021-08-27 06:11:05,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:11:05,678 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:11:05,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:11:05,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:11:05,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:11:05,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:11:05" (1/1) ... [2021-08-27 06:11:05,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7836f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:05, skipping insertion in model container [2021-08-27 06:11:05,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:11:05" (1/1) ... [2021-08-27 06:11:05,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:11:05,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:11:05,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:11:06,008 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:11:06,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:11:06,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:11:06,055 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:11:06,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:11:06,124 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:11:06,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06 WrapperNode [2021-08-27 06:11:06,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:11:06,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:11:06,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:11:06,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:11:06,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:11:06,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:11:06,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:11:06,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:11:06,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (1/1) ... [2021-08-27 06:11:06,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:11:06,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:11:06,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:11:06,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:11:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:11:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:11:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:11:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:11:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:11:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:11:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:11:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:11:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:11:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:11:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:11:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:11:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:11:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:11:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:11:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:11:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:11:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:11:06,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:11:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:11:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:11:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:11:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:11:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:11:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:11:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:11:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_unsafe_16 [2021-08-27 06:11:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2021-08-27 06:11:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:11:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:11:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:11:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:11:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:11:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:11:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:11:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:11:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:11:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:11:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:11:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:11:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:11:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:11:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:11:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:11:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:11:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:11:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:11:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:11:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:11:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:11:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:11:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:11:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:11:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:11:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:11:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:11:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:11:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:11:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:11:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:11:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:11:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:11:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:11:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:11:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:11:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:11:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:11:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:11:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:11:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:11:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:11:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:11:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:11:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:11:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:11:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:11:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:11:06,311 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:11:06,312 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:11:06,312 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:11:06,312 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:11:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:11:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:11:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:11:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:11:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:11:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:11:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:11:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:11:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:11:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:11:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:11:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_unsafe_16 [2021-08-27 06:11:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:11:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:11:06,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:11:06,879 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:11:07,153 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:11:07,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:11:07,364 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:11:07,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:11:07 BoogieIcfgContainer [2021-08-27 06:11:07,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:11:07,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:11:07,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:11:07,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:11:07,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:11:05" (1/3) ... [2021-08-27 06:11:07,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5bc152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:11:07, skipping insertion in model container [2021-08-27 06:11:07,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:11:06" (2/3) ... [2021-08-27 06:11:07,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5bc152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:11:07, skipping insertion in model container [2021-08-27 06:11:07,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:11:07" (3/3) ... [2021-08-27 06:11:07,374 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16_1.i [2021-08-27 06:11:07,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:11:07,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:11:07,413 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:11:07,418 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:11:07,418 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:11:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-08-27 06:11:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:11:07,433 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:11:07,433 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:11:07,434 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:11:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:11:07,437 INFO L82 PathProgramCache]: Analyzing trace with hash -147909416, now seen corresponding path program 1 times [2021-08-27 06:11:07,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:11:07,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476941730] [2021-08-27 06:11:07,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:11:07,445 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:11:07,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:11:07,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:11:07,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:11:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:11:07,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:11:07,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:11:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:07,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:11:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:07,999 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:11:07,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476941730] [2021-08-27 06:11:07,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476941730] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:11:08,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:11:08,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-08-27 06:11:08,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801253567] [2021-08-27 06:11:08,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:11:08,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:11:08,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:11:08,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:11:08,018 INFO L87 Difference]: Start difference. First operand has 106 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:11:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:11:08,076 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2021-08-27 06:11:08,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:11:08,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-08-27 06:11:08,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:11:08,082 INFO L225 Difference]: With dead ends: 35 [2021-08-27 06:11:08,082 INFO L226 Difference]: Without dead ends: 32 [2021-08-27 06:11:08,083 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.4ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:11:08,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-08-27 06:11:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-08-27 06:11:08,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:11:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2021-08-27 06:11:08,105 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 22 [2021-08-27 06:11:08,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:11:08,106 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2021-08-27 06:11:08,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:11:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-08-27 06:11:08,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:11:08,107 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:11:08,107 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:11:08,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:11:08,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:11:08,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_16Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:11:08,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:11:08,319 INFO L82 PathProgramCache]: Analyzing trace with hash -290224205, now seen corresponding path program 1 times [2021-08-27 06:11:08,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:11:08,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863348715] [2021-08-27 06:11:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:11:08,319 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:11:08,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:11:08,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:11:08,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:11:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:11:08,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:11:08,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:11:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:08,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:11:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:08,982 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:11:08,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863348715] [2021-08-27 06:11:08,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863348715] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:11:08,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:11:08,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2021-08-27 06:11:08,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059942566] [2021-08-27 06:11:08,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 06:11:08,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:11:08,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 06:11:08,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:11:08,984 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 17 states, 14 states have (on average 2.0) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:11:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:11:09,245 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2021-08-27 06:11:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:11:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.0) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 23 [2021-08-27 06:11:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:11:09,248 INFO L225 Difference]: With dead ends: 48 [2021-08-27 06:11:09,248 INFO L226 Difference]: Without dead ends: 48 [2021-08-27 06:11:09,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 262.7ms TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-08-27 06:11:09,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-27 06:11:09,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 31. [2021-08-27 06:11:09,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:11:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-08-27 06:11:09,251 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 23 [2021-08-27 06:11:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:11:09,251 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-08-27 06:11:09,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.0) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:11:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-08-27 06:11:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:11:09,252 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:11:09,252 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:11:09,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:11:09,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:11:09,461 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:11:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:11:09,461 INFO L82 PathProgramCache]: Analyzing trace with hash -407015366, now seen corresponding path program 1 times [2021-08-27 06:11:09,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:11:09,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705356250] [2021-08-27 06:11:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:11:09,462 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:11:09,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:11:09,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:11:09,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:11:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:11:09,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:11:09,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:11:09,669 INFO L388 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 [2021-08-27 06:11:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:09,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:11:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:09,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:11:09,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705356250] [2021-08-27 06:11:09,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705356250] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:11:09,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:11:09,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-08-27 06:11:09,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852742975] [2021-08-27 06:11:09,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:11:09,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:11:09,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:11:09,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:11:09,906 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:11:09,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:11:09,997 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-08-27 06:11:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:11:09,997 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-08-27 06:11:09,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:11:09,998 INFO L225 Difference]: With dead ends: 47 [2021-08-27 06:11:09,998 INFO L226 Difference]: Without dead ends: 47 [2021-08-27 06:11:09,999 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:11:09,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-27 06:11:10,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-08-27 06:11:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 30 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:11:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-08-27 06:11:10,004 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 24 [2021-08-27 06:11:10,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:11:10,005 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-08-27 06:11:10,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:11:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-08-27 06:11:10,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:11:10,006 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:11:10,006 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:11:10,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:11:10,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:11:10,213 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:11:10,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:11:10,213 INFO L82 PathProgramCache]: Analyzing trace with hash -700418373, now seen corresponding path program 1 times [2021-08-27 06:11:10,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:11:10,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892411924] [2021-08-27 06:11:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:11:10,214 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:11:10,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:11:10,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:11:10,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:11:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:11:10,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:11:10,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:11:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:10,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:11:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:11:10,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:11:10,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892411924] [2021-08-27 06:11:10,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892411924] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:11:10,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:11:10,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-08-27 06:11:10,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41642082] [2021-08-27 06:11:10,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:11:10,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:11:10,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:11:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:11:10,585 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:11:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:11:10,631 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2021-08-27 06:11:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:11:10,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-08-27 06:11:10,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:11:10,633 INFO L225 Difference]: With dead ends: 48 [2021-08-27 06:11:10,633 INFO L226 Difference]: Without dead ends: 48 [2021-08-27 06:11:10,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.9ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:11:10,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-27 06:11:10,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2021-08-27 06:11:10,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:11:10,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2021-08-27 06:11:10,643 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 24 [2021-08-27 06:11:10,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:11:10,643 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2021-08-27 06:11:10,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:11:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-08-27 06:11:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:11:10,645 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:11:10,645 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:11:10,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:11:10,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:11:10,852 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:11:10,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:11:10,852 INFO L82 PathProgramCache]: Analyzing trace with hash -60766299, now seen corresponding path program 1 times [2021-08-27 06:11:10,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:11:10,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925049742] [2021-08-27 06:11:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:11:10,853 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:11:10,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:11:10,854 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:11:10,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:11:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:11:11,035 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 06:11:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:11:11,073 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 06:11:11,073 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 06:11:11,074 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:11:11,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:11:11,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:11:11,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:11:11,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_16Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_16Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_16Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:11:11,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:11:11,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:11:11,289 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:11:11,294 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:11:11,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:11:11 BoogieIcfgContainer [2021-08-27 06:11:11,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:11:11,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:11:11,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:11:11,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:11:11,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:11:07" (3/4) ... [2021-08-27 06:11:11,307 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:11:11,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:11:11,314 INFO L168 Benchmark]: Toolchain (without parser) took 5634.83 ms. Allocated memory was 71.3 MB in the beginning and 142.6 MB in the end (delta: 71.3 MB). Free memory was 49.3 MB in the beginning and 95.3 MB in the end (delta: -46.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:11:11,314 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:11:11,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.53 ms. Allocated memory is still 71.3 MB. Free memory was 49.2 MB in the beginning and 36.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:11:11,315 INFO L168 Benchmark]: Boogie Preprocessor took 84.79 ms. Allocated memory is still 71.3 MB. Free memory was 36.4 MB in the beginning and 31.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:11:11,317 INFO L168 Benchmark]: RCFGBuilder took 1155.87 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 31.6 MB in the beginning and 59.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:11:11,318 INFO L168 Benchmark]: TraceAbstraction took 3933.88 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 58.5 MB in the beginning and 95.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:11:11,318 INFO L168 Benchmark]: Witness Printer took 9.98 ms. Allocated memory is still 142.6 MB. Free memory is still 95.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:11:11,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.53 ms. Allocated memory is still 71.3 MB. Free memory was 49.2 MB in the beginning and 36.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.79 ms. Allocated memory is still 71.3 MB. Free memory was 36.4 MB in the beginning and 31.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1155.87 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 31.6 MB in the beginning and 59.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3933.88 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 58.5 MB in the beginning and 95.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Witness Printer took 9.98 ms. Allocated memory is still 142.6 MB. Free memory is still 95.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 774]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 774. 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={-2147483648:0}] [L775] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L770] int condition = __VERIFIER_nondet_int(); [L771] CALL, EXPR alloc_unsafe_16(condition) VAL [\old(condition)=0, ldv_global_msg_list={-2147483648:0}] [L761] CALL, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L761] RET, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(struct A16))={1:0}] [L761] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L762] return p; VAL [\old(condition)=0, \result={1:0}, condition=0, ldv_global_msg_list={-2147483648:0}, p={1:0}] [L771] RET, EXPR alloc_unsafe_16(condition) VAL [alloc_unsafe_16(condition)={1:0}, condition=0, ldv_global_msg_list={-2147483648:0}] [L771] struct A16 *p = alloc_unsafe_16(condition); [L772] CALL free_16(p, condition) VAL [\old(condition)=0, ldv_global_msg_list={-2147483648:0}, p={1:0}] [L765] COND FALSE !(\read(condition)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, p={1:0}] [L772] RET free_16(p, condition) VAL [condition=0, ldv_global_msg_list={-2147483648:0}, p={1:0}] [L775] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 346 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 3876.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 10.7ms, AutomataDifference: 483.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 124 SDtfs, 86 SDslu, 746 SDs, 0 SdLazy, 393 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 246.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 140 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 419.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 37 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 42.2ms SsaConstructionTime, 85.2ms SatisfiabilityAnalysisTime, 1308.2ms InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 561 SizeOfPredicates, 9 NumberOfNonLiveVariables, 343 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:11:11,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...