./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.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_test11_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 960a43474c75eeb33a7f3e9b45605c9175ab42f2 ................................................................................................................................... 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_test11_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 960a43474c75eeb33a7f3e9b45605c9175ab42f2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:05:50,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:05:50,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:05:50,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:05:50,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:05:50,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:05:50,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:05:50,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:05:50,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:05:50,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:05:50,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:05:50,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:05:50,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:05:50,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:05:50,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:05:50,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:05:50,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:05:50,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:05:50,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:05:50,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:05:50,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:05:50,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:05:50,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:05:50,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:05:50,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:05:50,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:05:50,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:05:50,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:05:50,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:05:50,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:05:50,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:05:50,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:05:50,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:05:50,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:05:50,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:05:50,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:05:50,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:05:50,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:05:50,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:05:50,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:05:50,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:05:50,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:05:50,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:05:50,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:05:50,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:05:50,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:05:50,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:05:50,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:05:50,961 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:05:50,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:05:50,962 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:05:50,962 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:05:50,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:05:50,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:05:50,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:05:50,963 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:05:50,963 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:05:50,963 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:05:50,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:05:50,963 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:05:50,963 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:05:50,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:05:50,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:05:50,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:05:50,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:05:50,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:05:50,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:05:50,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:05:50,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:05:50,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:05:50,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:05:50,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 960a43474c75eeb33a7f3e9b45605c9175ab42f2 [2021-08-27 06:05:51,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:05:51,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:05:51,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:05:51,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:05:51,268 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:05:51,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i [2021-08-27 06:05:51,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f386b05dd/e5d0a8ea66134cf084d28955b10cfa99/FLAGb317557d4 [2021-08-27 06:05:51,702 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:05:51,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i [2021-08-27 06:05:51,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f386b05dd/e5d0a8ea66134cf084d28955b10cfa99/FLAGb317557d4 [2021-08-27 06:05:51,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f386b05dd/e5d0a8ea66134cf084d28955b10cfa99 [2021-08-27 06:05:51,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:05:51,735 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:05:51,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:05:51,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:05:51,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:05:51,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:05:51" (1/1) ... [2021-08-27 06:05:51,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adc14cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:51, skipping insertion in model container [2021-08-27 06:05:51,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:05:51" (1/1) ... [2021-08-27 06:05:51,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:05:51,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:05:52,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:05:52,120 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 06:05:52,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@714bd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:52, skipping insertion in model container [2021-08-27 06:05:52,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:05:52,121 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:05:52,123 INFO L168 Benchmark]: Toolchain (without parser) took 386.95 ms. Allocated memory is still 60.8 MB. Free memory was 38.0 MB in the beginning and 40.7 MB in the end (delta: -2.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:05:52,124 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:05:52,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.07 ms. Allocated memory is still 60.8 MB. Free memory was 37.8 MB in the beginning and 40.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:05:52,126 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 60.8 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.07 ms. Allocated memory is still 60.8 MB. Free memory was 37.8 MB in the beginning and 40.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 12.6 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 06:05:53,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:05:53,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:05:53,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:05:53,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:05:53,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:05:53,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:05:53,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:05:53,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:05:53,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:05:53,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:05:53,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:05:53,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:05:53,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:05:53,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:05:53,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:05:53,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:05:53,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:05:53,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:05:53,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:05:53,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:05:53,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:05:53,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:05:53,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:05:53,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:05:53,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:05:53,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:05:53,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:05:53,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:05:53,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:05:53,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:05:53,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:05:53,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:05:53,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:05:53,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:05:53,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:05:53,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:05:53,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:05:53,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:05:53,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:05:53,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:05:53,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:05:53,665 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:05:53,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:05:53,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:05:53,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:05:53,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:05:53,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:05:53,667 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:05:53,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:05:53,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:05:53,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:05:53,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:05:53,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:05:53,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:05:53,669 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:05:53,669 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:05:53,670 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:05:53,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:05:53,676 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:05:53,676 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:05:53,676 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:05:53,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:05:53,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:05:53,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:05:53,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:05:53,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:05:53,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:05:53,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:05:53,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:05:53,678 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:05:53,678 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:05:53,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:05:53,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:05:53,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 960a43474c75eeb33a7f3e9b45605c9175ab42f2 [2021-08-27 06:05:53,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:05:53,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:05:53,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:05:53,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:05:53,970 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:05:53,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i [2021-08-27 06:05:54,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d53dd3a/05854faa5c4941b2ad4d12855e627528/FLAG88410c1c5 [2021-08-27 06:05:54,493 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:05:54,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test11_2.i [2021-08-27 06:05:54,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d53dd3a/05854faa5c4941b2ad4d12855e627528/FLAG88410c1c5 [2021-08-27 06:05:55,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d53dd3a/05854faa5c4941b2ad4d12855e627528 [2021-08-27 06:05:55,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:05:55,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:05:55,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:05:55,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:05:55,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:05:55,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdcea0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55, skipping insertion in model container [2021-08-27 06:05:55,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:05:55,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:05:55,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:05:55,391 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:05:55,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:05:55,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:05:55,448 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:05:55,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:05:55,510 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:05:55,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55 WrapperNode [2021-08-27 06:05:55,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:05:55,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:05:55,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:05:55,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:05:55,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:05:55,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:05:55,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:05:55,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:05:55,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (1/1) ... [2021-08-27 06:05:55,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:05:55,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:05:55,638 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 06:05:55,660 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 06:05:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:05:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:05:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:05:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:05:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:05:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:05:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:05:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_get_clientdata [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_set_clientdata [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_3_11 [2021-08-27 06:05:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure free_11 [2021-08-27 06:05:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:05:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:05:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:05:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:05:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:05:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:05:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:05:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:05:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:05:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:05:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:05:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:05:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:05:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:05:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:05:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:05:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:05:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:05:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:05:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:05:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_get_clientdata [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_set_clientdata [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_3_11 [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure free_11 [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:05:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:05:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:05:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:05:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:05:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:05:56,301 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:05:56,560 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:05:56,992 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:05:56,992 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:05:56,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:05:56 BoogieIcfgContainer [2021-08-27 06:05:56,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:05:56,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:05:56,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:05:56,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:05:56,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:05:55" (1/3) ... [2021-08-27 06:05:56,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99b8335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:05:56, skipping insertion in model container [2021-08-27 06:05:56,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:05:55" (2/3) ... [2021-08-27 06:05:57,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99b8335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:05:56, skipping insertion in model container [2021-08-27 06:05:57,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:05:56" (3/3) ... [2021-08-27 06:05:57,001 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test11_2.i [2021-08-27 06:05:57,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:05:57,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 93 error locations. [2021-08-27 06:05:57,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:05:57,045 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 06:05:57,046 INFO L340 AbstractCegarLoop]: Starting to check reachability of 93 error locations. [2021-08-27 06:05:57,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 96 states have (on average 1.5729166666666667) internal successors, (151), 140 states have internal predecessors, (151), 21 states have call successors, (21), 16 states have call predecessors, (21), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-08-27 06:05:57,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 06:05:57,065 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:05:57,066 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:05:57,066 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:05:57,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:05:57,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1897725955, now seen corresponding path program 1 times [2021-08-27 06:05:57,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:05:57,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313455003] [2021-08-27 06:05:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:05:57,078 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:05:57,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:05:57,080 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 06:05:57,081 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 06:05:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:05:57,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:05:57,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:05:57,506 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 06:05:57,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:05:57,660 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 06:05:57,661 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:05:57,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313455003] [2021-08-27 06:05:57,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313455003] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:05:57,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:05:57,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:05:57,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047406544] [2021-08-27 06:05:57,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:05:57,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:05:57,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:05:57,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:05:57,684 INFO L87 Difference]: Start difference. First operand has 178 states, 96 states have (on average 1.5729166666666667) internal successors, (151), 140 states have internal predecessors, (151), 21 states have call successors, (21), 16 states have call predecessors, (21), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:05:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:05:57,781 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2021-08-27 06:05:57,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:05:57,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-08-27 06:05:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:05:57,791 INFO L225 Difference]: With dead ends: 146 [2021-08-27 06:05:57,792 INFO L226 Difference]: Without dead ends: 143 [2021-08-27 06:05:57,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:05:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-08-27 06:05:57,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 109. [2021-08-27 06:05:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 58 states have (on average 1.5517241379310345) internal successors, (90), 84 states have internal predecessors, (90), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2021-08-27 06:05:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2021-08-27 06:05:57,837 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 16 [2021-08-27 06:05:57,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:05:57,837 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2021-08-27 06:05:57,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:05:57,837 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2021-08-27 06:05:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 06:05:57,838 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:05:57,838 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:05:57,848 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 06:05:58,045 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 06:05:58,046 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:05:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:05:58,048 INFO L82 PathProgramCache]: Analyzing trace with hash -154915620, now seen corresponding path program 1 times [2021-08-27 06:05:58,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:05:58,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880127603] [2021-08-27 06:05:58,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:05:58,049 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:05:58,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:05:58,050 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 06:05:58,051 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 06:05:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:05:58,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:05:58,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:05:58,357 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 06:05:58,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:05:58,484 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 06:05:58,485 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:05:58,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880127603] [2021-08-27 06:05:58,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880127603] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:05:58,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:05:58,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:05:58,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748799645] [2021-08-27 06:05:58,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:05:58,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:05:58,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:05:58,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:05:58,487 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:05:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:05:58,661 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2021-08-27 06:05:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:05:58,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-08-27 06:05:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:05:58,663 INFO L225 Difference]: With dead ends: 158 [2021-08-27 06:05:58,663 INFO L226 Difference]: Without dead ends: 155 [2021-08-27 06:05:58,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:05:58,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-08-27 06:05:58,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 105. [2021-08-27 06:05:58,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 55 states have (on average 1.5636363636363637) internal successors, (86), 81 states have internal predecessors, (86), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-08-27 06:05:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2021-08-27 06:05:58,670 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 16 [2021-08-27 06:05:58,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:05:58,670 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2021-08-27 06:05:58,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:05:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2021-08-27 06:05:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:05:58,671 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:05:58,671 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:05:58,680 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 06:05:58,877 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 06:05:58,878 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:05:58,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:05:58,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1553334128, now seen corresponding path program 1 times [2021-08-27 06:05:58,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:05:58,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742876076] [2021-08-27 06:05:58,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:05:58,879 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:05:58,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:05:58,879 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 06:05:58,881 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 06:05:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:05:59,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:05:59,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:05:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:05:59,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:05:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:05:59,332 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:05:59,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742876076] [2021-08-27 06:05:59,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742876076] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:05:59,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:05:59,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:05:59,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985407965] [2021-08-27 06:05:59,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:05:59,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:05:59,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:05:59,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:05:59,335 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:05:59,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:05:59,405 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2021-08-27 06:05:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:05:59,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-08-27 06:05:59,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:05:59,407 INFO L225 Difference]: With dead ends: 140 [2021-08-27 06:05:59,409 INFO L226 Difference]: Without dead ends: 140 [2021-08-27 06:05:59,409 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:05:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-08-27 06:05:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 109. [2021-08-27 06:05:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 84 states have internal predecessors, (89), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2021-08-27 06:05:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2021-08-27 06:05:59,430 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 21 [2021-08-27 06:05:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:05:59,431 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2021-08-27 06:05:59,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:05:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2021-08-27 06:05:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:05:59,432 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:05:59,433 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:05:59,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-27 06:05:59,639 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 06:05:59,640 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:05:59,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:05:59,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1553334161, now seen corresponding path program 1 times [2021-08-27 06:05:59,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:05:59,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534234988] [2021-08-27 06:05:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:05:59,641 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:05:59,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:05:59,642 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 06:05:59,643 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 06:05:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:05:59,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:05:59,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:05:59,965 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 06:06:00,097 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:06:00,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-08-27 06:06:00,136 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:06:00,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:06:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:06:00,429 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:06:00,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534234988] [2021-08-27 06:06:00,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534234988] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:06:00,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:06:00,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-27 06:06:00,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623743050] [2021-08-27 06:06:00,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:06:00,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:06:00,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:06:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:06:00,433 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:06:01,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:06:01,305 INFO L93 Difference]: Finished difference Result 205 states and 236 transitions. [2021-08-27 06:06:01,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:06:01,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2021-08-27 06:06:01,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:06:01,307 INFO L225 Difference]: With dead ends: 205 [2021-08-27 06:06:01,308 INFO L226 Difference]: Without dead ends: 205 [2021-08-27 06:06:01,308 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 190.2ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:06:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-08-27 06:06:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 124. [2021-08-27 06:06:01,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 71 states have (on average 1.5070422535211268) internal successors, (107), 95 states have internal predecessors, (107), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (19), 17 states have call predecessors, (19), 14 states have call successors, (19) [2021-08-27 06:06:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 141 transitions. [2021-08-27 06:06:01,317 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 141 transitions. Word has length 21 [2021-08-27 06:06:01,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:06:01,317 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 141 transitions. [2021-08-27 06:06:01,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:06:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 141 transitions. [2021-08-27 06:06:01,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:06:01,318 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:06:01,319 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:06:01,328 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 06:06:01,524 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 06:06:01,525 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:06:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:06:01,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1553334162, now seen corresponding path program 1 times [2021-08-27 06:06:01,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:06:01,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101742466] [2021-08-27 06:06:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:06:01,526 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:06:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:06:01,527 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 06:06:01,528 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 06:06:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:06:01,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:06:01,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:06:01,858 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 06:06:01,865 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 06:06:04,165 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:06:04,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2021-08-27 06:06:04,178 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:06:04,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-08-27 06:06:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:06:04,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:06:12,253 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ldv_malloc_#res.base_36| (_ BitVec 32)) (v_entry_point_~c11~0.base_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~c11~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_36|)))) (exists ((|v_ldv_malloc_#res.base_35| (_ BitVec 32))) (and (or (not (bvule v_entry_point_~c11~0.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2))) (exists ((v_ldv_malloc_~size_31 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_35| v_ldv_malloc_~size_31) v_entry_point_~c11~0.base_BEFORE_CALL_4))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_35|))))))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_36| ldv_malloc_~size) v_entry_point_~c11~0.base_BEFORE_CALL_4))) (bvule v_entry_point_~c11~0.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2))))) is different from true [2021-08-27 06:06:13,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2021-08-27 06:06:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-08-27 06:06:13,525 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:06:13,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101742466] [2021-08-27 06:06:13,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101742466] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:06:13,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:06:13,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-08-27 06:06:13,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777105867] [2021-08-27 06:06:13,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 06:06:13,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:06:13,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 06:06:13,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=4, NotChecked=26, Total=240 [2021-08-27 06:06:13,527 INFO L87 Difference]: Start difference. First operand 124 states and 141 transitions. Second operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:06:29,984 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= (_ bv20 32) |c_ldv_malloc_#in~size|)))) (and (or .cse0 (forall ((|v_ldv_malloc_#res.base_35| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_35|)))))) (and (forall ((v_ldv_malloc_~size_31 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) |c_ldv_malloc_#res.offset|) (select (store |c_#length| |v_ldv_malloc_#res.base_35| v_ldv_malloc_~size_31) |c_ldv_malloc_#res.base|))) (bvule |c_ldv_malloc_#res.offset| (bvadd (_ bv4 32) |c_ldv_malloc_#res.offset|)))))) (forall ((|v_ldv_malloc_#res.base_36| (_ BitVec 32)) (v_entry_point_~c11~0.base_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~c11~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_36|)))) (exists ((|v_ldv_malloc_#res.base_35| (_ BitVec 32))) (and (or (not (bvule v_entry_point_~c11~0.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2))) (exists ((v_ldv_malloc_~size_31 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_35| v_ldv_malloc_~size_31) v_entry_point_~c11~0.base_BEFORE_CALL_4))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_35|))))))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_36| ldv_malloc_~size) v_entry_point_~c11~0.base_BEFORE_CALL_4))) (bvule v_entry_point_~c11~0.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_entry_point_~c11~0.offset_BEFORE_CALL_2))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (or (bvule (_ bv4 32) c_ldv_malloc_~size) .cse0))) is different from false [2021-08-27 06:07:28,809 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv4 32) c_entry_point_~c11~0.offset))) (and (bvule c_entry_point_~c11~0.offset .cse0) (forall ((|v_ldv_malloc_#res.base_35| (_ BitVec 32))) (or (and (bvule c_entry_point_~c11~0.offset (bvadd (_ bv4 32) c_entry_point_~c11~0.offset)) (forall ((v_ldv_malloc_~size_31 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) c_entry_point_~c11~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_35| v_ldv_malloc_~size_31) c_entry_point_~c11~0.base)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_35|)))))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (bvule .cse0 (select |c_#length| c_entry_point_~c11~0.base)))) is different from false [2021-08-27 06:08:36,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:08:36,052 INFO L93 Difference]: Finished difference Result 317 states and 365 transitions. [2021-08-27 06:08:36,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:08:36,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 21 [2021-08-27 06:08:36,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:08:36,054 INFO L225 Difference]: With dead ends: 317 [2021-08-27 06:08:36,054 INFO L226 Difference]: Without dead ends: 317 [2021-08-27 06:08:36,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 42442.1ms TimeCoverageRelationStatistics Valid=120, Invalid=580, Unknown=14, NotChecked=156, Total=870 [2021-08-27 06:08:36,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-08-27 06:08:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 157. [2021-08-27 06:08:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 95 states have (on average 1.5473684210526315) internal successors, (147), 120 states have internal predecessors, (147), 22 states have call successors, (22), 12 states have call predecessors, (22), 13 states have return successors, (30), 24 states have call predecessors, (30), 21 states have call successors, (30) [2021-08-27 06:08:36,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 199 transitions. [2021-08-27 06:08:36,062 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 199 transitions. Word has length 21 [2021-08-27 06:08:36,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:08:36,063 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 199 transitions. [2021-08-27 06:08:36,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:08:36,063 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 199 transitions. [2021-08-27 06:08:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:08:36,064 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:08:36,064 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:08:36,072 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 06:08:36,264 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 06:08:36,265 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:08:36,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:08:36,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1259931154, now seen corresponding path program 1 times [2021-08-27 06:08:36,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:08:36,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262415494] [2021-08-27 06:08:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:08:36,266 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:08:36,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:08:36,266 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:08:36,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:08:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:08:36,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:08:36,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:08:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:08:36,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:08:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:08:36,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:08:36,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262415494] [2021-08-27 06:08:36,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262415494] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:08:36,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:08:36,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-27 06:08:36,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261947326] [2021-08-27 06:08:36,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:08:36,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:08:36,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:08:36,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:08:36,877 INFO L87 Difference]: Start difference. First operand 157 states and 199 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:08:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:08:36,904 INFO L93 Difference]: Finished difference Result 138 states and 166 transitions. [2021-08-27 06:08:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:08:36,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2021-08-27 06:08:36,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:08:36,906 INFO L225 Difference]: With dead ends: 138 [2021-08-27 06:08:36,906 INFO L226 Difference]: Without dead ends: 134 [2021-08-27 06:08:36,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:08:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-27 06:08:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-08-27 06:08:36,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 80 states have (on average 1.525) internal successors, (122), 102 states have internal predecessors, (122), 18 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (22), 20 states have call predecessors, (22), 17 states have call successors, (22) [2021-08-27 06:08:36,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2021-08-27 06:08:36,911 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 21 [2021-08-27 06:08:36,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:08:36,911 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2021-08-27 06:08:36,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:08:36,911 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2021-08-27 06:08:36,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:08:36,912 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:08:36,912 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:08:36,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:08:37,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:08:37,121 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:08:37,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:08:37,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1796221871, now seen corresponding path program 1 times [2021-08-27 06:08:37,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:08:37,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481079052] [2021-08-27 06:08:37,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:08:37,122 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:08:37,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:08:37,123 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:08:37,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:08:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:08:37,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:08:37,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:08:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:08:37,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:08:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:08:37,943 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:08:37,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481079052] [2021-08-27 06:08:37,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481079052] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:08:37,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:08:37,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-08-27 06:08:37,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124550712] [2021-08-27 06:08:37,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:08:37,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:08:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:08:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:08:37,944 INFO L87 Difference]: Start difference. First operand 134 states and 162 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:08:38,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:08:38,378 INFO L93 Difference]: Finished difference Result 133 states and 160 transitions. [2021-08-27 06:08:38,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:08:38,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 22 [2021-08-27 06:08:38,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:08:38,380 INFO L225 Difference]: With dead ends: 133 [2021-08-27 06:08:38,380 INFO L226 Difference]: Without dead ends: 133 [2021-08-27 06:08:38,380 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 146.1ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:08:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-27 06:08:38,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-08-27 06:08:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 80 states have (on average 1.5) internal successors, (120), 101 states have internal predecessors, (120), 18 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (22), 20 states have call predecessors, (22), 17 states have call successors, (22) [2021-08-27 06:08:38,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 160 transitions. [2021-08-27 06:08:38,384 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 160 transitions. Word has length 22 [2021-08-27 06:08:38,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:08:38,384 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 160 transitions. [2021-08-27 06:08:38,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:08:38,384 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 160 transitions. [2021-08-27 06:08:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:08:38,385 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:08:38,385 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:08:38,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-27 06:08:38,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:08:38,605 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 89 more)] === [2021-08-27 06:08:38,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:08:38,605 INFO L82 PathProgramCache]: Analyzing trace with hash -880393985, now seen corresponding path program 1 times [2021-08-27 06:08:38,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:08:38,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843309940] [2021-08-27 06:08:38,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:08:38,606 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:08:38,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:08:38,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:08:38,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:08:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:08:38,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:08:38,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:08:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:08:39,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:08:43,500 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:08:43,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843309940] [2021-08-27 06:08:43,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:08:43,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1086846934] [2021-08-27 06:08:43,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:08:43,501 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:08:43,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:08:43,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:08:43,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-08-27 06:08:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:08:43,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:08:43,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:08:44,024 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:08:44,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2021-08-27 06:08:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:08:48,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:08:52,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:08:52,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583540450] [2021-08-27 06:08:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:08:52,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:08:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:08:52,612 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:08:52,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 06:08:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:08:53,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:08:53,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:08:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:08:53,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:08:57,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:08:57,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:08:57,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:08:57,608 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:08:57,608 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:08:57,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,612 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,613 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:08:57,614 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,616 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_3_11Err0REQUIRES_VIOLATION [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_3_11Err1REQUIRES_VIOLATION [2021-08-27 06:08:57,617 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_3_11Err2REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_3_11Err3REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_3_11Err4REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_3_11Err5REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_11Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_11Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_11Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,618 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,619 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:08:57,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:08:57,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:08:58,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:08:58,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-27 06:08:58,224 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:08:58,226 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:08:58,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:08:58 BoogieIcfgContainer [2021-08-27 06:08:58,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:08:58,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:08:58,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:08:58,233 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:08:58,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:05:56" (3/4) ... [2021-08-27 06:08:58,236 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:08:58,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:08:58,238 INFO L168 Benchmark]: Toolchain (without parser) took 183218.30 ms. Allocated memory was 50.3 MB in the beginning and 117.4 MB in the end (delta: 67.1 MB). Free memory was 25.4 MB in the beginning and 85.1 MB in the end (delta: -59.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:08:58,238 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:08:58,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.95 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 25.2 MB in the beginning and 34.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:08:58,239 INFO L168 Benchmark]: Boogie Preprocessor took 104.10 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 44.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:08:58,239 INFO L168 Benchmark]: RCFGBuilder took 1378.63 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 44.7 MB in the beginning and 50.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:08:58,240 INFO L168 Benchmark]: TraceAbstraction took 181236.17 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 50.2 MB in the beginning and 86.3 MB in the end (delta: -36.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:08:58,240 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 117.4 MB. Free memory was 86.3 MB in the beginning and 85.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:08:58,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.95 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 25.2 MB in the beginning and 34.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 104.10 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 44.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1378.63 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 44.7 MB in the beginning and 50.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 181236.17 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 50.2 MB in the beginning and 86.3 MB in the end (delta: -36.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.89 ms. Allocated memory is still 117.4 MB. Free memory was 86.3 MB in the beginning and 85.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. 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.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: 822]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 822. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L823] CALL entry_point() [L802] CALL, EXPR ldv_malloc(sizeof(struct ldv_i2c_client)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L802] RET, EXPR ldv_malloc(sizeof(struct ldv_i2c_client)) [L802] struct ldv_i2c_client *c11 = (struct ldv_i2c_client *)ldv_malloc(sizeof(struct ldv_i2c_client)); [L803] COND FALSE !(!c11) [L805] CALL, EXPR ldv_malloc(sizeof(struct ldv_m88ts2022_config)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L805] RET, EXPR ldv_malloc(sizeof(struct ldv_m88ts2022_config)) [L804-L805] struct ldv_m88ts2022_config *cfg = (struct ldv_m88ts2022_config *) ldv_malloc(sizeof(struct ldv_m88ts2022_config)); [L806] COND TRUE !cfg [L818] free(c11) [L818] free(c11) [L818] free(c11) [L823] RET entry_point() - 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: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 785]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: 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: 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: 798]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 798]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 798]: Unable to prove that free always succeeds Unable to prove that free 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: 807]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 807]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 814]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 814]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 814]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 405 locations, 93 error locations. Started 1 CEGAR loops. OverallTime: 181184.9ms, OverallIterations: 8, TraceHistogramMax: 2, EmptinessCheckTime: 12.2ms, AutomataDifference: 144244.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 840 SDtfs, 873 SDslu, 2299 SDs, 0 SdLazy, 2000 SolverSat, 256 SolverUnsat, 51 SolverUnknown, 0 SolverNotchecked, 108860.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 226 SyntacticMatches, 7 SemanticMatches, 59 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 42840.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 86.3ms AutomataMinimizationTime, 7 MinimizatonAttempts, 356 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 86.2ms SsaConstructionTime, 137.7ms SatisfiabilityAnalysisTime, 13737.5ms InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 262 ConstructedInterpolants, 21 QuantifiedInterpolants, 1277 SizeOfPredicates, 7 NumberOfNonLiveVariables, 617 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 24/40 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 06:08:58,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...