./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.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_test3-2.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 34250e9d8f469697cb8850c8aa9214fde887cb00 ................................................................................................................................... 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_test3-2.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 34250e9d8f469697cb8850c8aa9214fde887cb00 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:22:44,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:22:44,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:22:44,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:22:44,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:22:44,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:22:44,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:22:44,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:22:44,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:22:44,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:22:44,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:22:44,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:22:44,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:22:44,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:22:44,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:22:44,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:22:44,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:22:44,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:22:44,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:22:44,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:22:44,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:22:44,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:22:44,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:22:44,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:22:44,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:22:44,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:22:44,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:22:44,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:22:44,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:22:44,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:22:44,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:22:44,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:22:44,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:22:44,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:22:44,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:22:44,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:22:44,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:22:44,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:22:44,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:22:44,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:22:44,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:22:44,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:22:44,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:22:44,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:22:44,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:22:44,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:22:44,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:22:44,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:22:44,598 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:22:44,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:22:44,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:22:44,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:22:44,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:22:44,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:22:44,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:22:44,600 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:22:44,600 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:22:44,600 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:22:44,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:22:44,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:22:44,601 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:22:44,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:22:44,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:22:44,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:22:44,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:22:44,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:22:44,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:22:44,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:22:44,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:22:44,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:22:44,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:22:44,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2021-08-27 06:22:44,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:22:44,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:22:44,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:22:44,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:22:44,879 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:22:44,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-27 06:22:44,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e4e973c/2efc8a31c88e489095704835d49ae3cb/FLAGf38ed4264 [2021-08-27 06:22:45,297 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:22:45,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-27 06:22:45,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e4e973c/2efc8a31c88e489095704835d49ae3cb/FLAGf38ed4264 [2021-08-27 06:22:45,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e4e973c/2efc8a31c88e489095704835d49ae3cb [2021-08-27 06:22:45,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:22:45,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:22:45,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:22:45,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:22:45,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:22:45,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:22:45" (1/1) ... [2021-08-27 06:22:45,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7008a9fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:45, skipping insertion in model container [2021-08-27 06:22:45,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:22:45" (1/1) ... [2021-08-27 06:22:45,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:22:45,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:22:45,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:22:45,713 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 06:22:45,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5fb7ad5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:45, skipping insertion in model container [2021-08-27 06:22:45,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:22:45,714 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:22:45,716 INFO L168 Benchmark]: Toolchain (without parser) took 386.12 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.1 MB in the beginning and 49.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:22:45,717 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 33.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:22:45,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.83 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 49.7 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:22:45,719 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 52.4 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 33.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 382.83 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 49.7 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.6 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 06:22:47,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:22:47,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:22:47,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:22:47,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:22:47,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:22:47,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:22:47,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:22:47,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:22:47,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:22:47,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:22:47,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:22:47,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:22:47,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:22:47,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:22:47,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:22:47,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:22:47,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:22:47,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:22:47,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:22:47,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:22:47,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:22:47,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:22:47,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:22:47,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:22:47,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:22:47,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:22:47,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:22:47,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:22:47,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:22:47,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:22:47,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:22:47,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:22:47,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:22:47,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:22:47,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:22:47,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:22:47,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:22:47,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:22:47,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:22:47,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:22:47,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:22:47,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:22:47,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:22:47,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:22:47,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:22:47,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:22:47,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:22:47,167 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:22:47,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:22:47,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:22:47,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:22:47,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:22:47,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:22:47,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:22:47,169 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:22:47,169 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:22:47,169 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:22:47,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:22:47,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:22:47,170 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:22:47,170 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:22:47,170 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:22:47,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:22:47,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:22:47,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:22:47,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:22:47,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:22:47,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:22:47,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:22:47,172 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:22:47,172 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:22:47,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:22:47,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:22:47,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2021-08-27 06:22:47,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:22:47,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:22:47,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:22:47,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:22:47,446 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:22:47,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-27 06:22:47,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c34e0ddf/ac67ad087b5b4bb28f179b1e2503311a/FLAGd30a9b636 [2021-08-27 06:22:47,915 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:22:47,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-08-27 06:22:47,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c34e0ddf/ac67ad087b5b4bb28f179b1e2503311a/FLAGd30a9b636 [2021-08-27 06:22:47,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c34e0ddf/ac67ad087b5b4bb28f179b1e2503311a [2021-08-27 06:22:47,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:22:47,942 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:22:47,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:22:47,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:22:47,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:22:47,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:22:47" (1/1) ... [2021-08-27 06:22:47,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173778d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:47, skipping insertion in model container [2021-08-27 06:22:47,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:22:47" (1/1) ... [2021-08-27 06:22:47,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:22:47,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:22:48,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:22:48,277 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:22:48,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:22:48,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:22:48,350 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:22:48,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:22:48,438 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:22:48,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48 WrapperNode [2021-08-27 06:22:48,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:22:48,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:22:48,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:22:48,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:22:48,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:22:48,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:22:48,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:22:48,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:22:48,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (1/1) ... [2021-08-27 06:22:48,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:22:48,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:22:48,566 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 06:22:48,591 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 06:22:48,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:22:48,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:22:48,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:22:48,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:22:48,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:22:48,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:22:48,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:22:48,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:22:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:22:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:22:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:22:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:22:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:22:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:22:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:22:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:22:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:22:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:22:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure h_safe [2021-08-27 06:22:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:22:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:22:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:22:48,609 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:22:48,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:22:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:22:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:22:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:22:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:22:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:22:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:22:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:22:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:22:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:22:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:22:48,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:22:48,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:22:48,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:22:48,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:22:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:22:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:22:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:22:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:22:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:22:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:22:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:22:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:22:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:22:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:22:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:22:48,615 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:22:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:22:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:22:48,618 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:22:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:22:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:22:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:22:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:22:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:22:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:22:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:22:48,621 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:22:48,622 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:22:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:22:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:22:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:22:48,624 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:22:48,624 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:22:48,625 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:22:48,625 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:22:48,625 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:22:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:22:48,630 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:22:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:22:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:22:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:22:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:22:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:22:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure h_safe [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:22:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:22:48,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:22:49,301 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:22:49,576 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:22:49,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:22:49,858 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:22:49,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:22:49 BoogieIcfgContainer [2021-08-27 06:22:49,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:22:49,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:22:49,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:22:49,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:22:49,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:22:47" (1/3) ... [2021-08-27 06:22:49,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28998283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:22:49, skipping insertion in model container [2021-08-27 06:22:49,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:22:48" (2/3) ... [2021-08-27 06:22:49,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28998283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:22:49, skipping insertion in model container [2021-08-27 06:22:49,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:22:49" (3/3) ... [2021-08-27 06:22:49,869 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2021-08-27 06:22:49,872 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:22:49,873 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:22:49,907 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:22:49,912 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 06:22:49,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:22:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 55 states have (on average 1.509090909090909) internal successors, (83), 76 states have internal predecessors, (83), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-08-27 06:22:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:22:49,936 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:49,936 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:49,936 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:22:49,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:49,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1115971593, now seen corresponding path program 1 times [2021-08-27 06:22:49,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:49,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489478272] [2021-08-27 06:22:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:49,948 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:49,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:49,952 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 06:22:49,977 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 06:22:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:50,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:22:50,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:50,288 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 06:22:50,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:50,385 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 06:22:50,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:50,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489478272] [2021-08-27 06:22:50,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489478272] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:50,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:50,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-27 06:22:50,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445776988] [2021-08-27 06:22:50,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:22:50,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:50,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:22:50,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:22:50,400 INFO L87 Difference]: Start difference. First operand has 100 states, 55 states have (on average 1.509090909090909) internal successors, (83), 76 states have internal predecessors, (83), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:50,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:50,457 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-08-27 06:22:50,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:22:50,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-08-27 06:22:50,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:50,463 INFO L225 Difference]: With dead ends: 29 [2021-08-27 06:22:50,463 INFO L226 Difference]: Without dead ends: 26 [2021-08-27 06:22:50,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.0ms TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:22:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-08-27 06:22:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-08-27 06:22:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 06:22:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-08-27 06:22:50,483 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2021-08-27 06:22:50,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:50,483 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-08-27 06:22:50,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-08-27 06:22:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-27 06:22:50,484 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:50,484 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:50,495 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 06:22:50,696 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 06:22:50,697 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:22:50,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:50,698 INFO L82 PathProgramCache]: Analyzing trace with hash -235380623, now seen corresponding path program 1 times [2021-08-27 06:22:50,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:50,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747728960] [2021-08-27 06:22:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:50,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:50,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:50,702 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 06:22:50,702 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 06:22:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:50,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:22:50,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:51,066 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 06:22:51,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:51,265 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 06:22:51,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:51,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747728960] [2021-08-27 06:22:51,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747728960] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:51,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:51,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2021-08-27 06:22:51,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964150145] [2021-08-27 06:22:51,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 06:22:51,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 06:22:51,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:22:51,273 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:22:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:51,428 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2021-08-27 06:22:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:22:51,428 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 19 [2021-08-27 06:22:51,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:51,430 INFO L225 Difference]: With dead ends: 37 [2021-08-27 06:22:51,430 INFO L226 Difference]: Without dead ends: 37 [2021-08-27 06:22:51,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 112.5ms TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:22:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-27 06:22:51,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2021-08-27 06:22:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:22:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2021-08-27 06:22:51,435 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19 [2021-08-27 06:22:51,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:51,435 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2021-08-27 06:22:51,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:22:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-08-27 06:22:51,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:22:51,436 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:51,436 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:51,447 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 06:22:51,644 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 06:22:51,644 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:22:51,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:51,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1293135673, now seen corresponding path program 1 times [2021-08-27 06:22:51,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:51,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889749268] [2021-08-27 06:22:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:51,645 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:51,646 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 06:22:51,648 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 06:22:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:51,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:22:51,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:51,844 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 06:22:51,900 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 06:22:51,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:52,018 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 06:22:52,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:52,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889749268] [2021-08-27 06:22:52,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889749268] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:52,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:52,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-27 06:22:52,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140143963] [2021-08-27 06:22:52,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:22:52,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:52,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:22:52,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:22:52,020 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:52,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:52,068 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2021-08-27 06:22:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:22:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-27 06:22:52,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:52,076 INFO L225 Difference]: With dead ends: 35 [2021-08-27 06:22:52,076 INFO L226 Difference]: Without dead ends: 35 [2021-08-27 06:22:52,077 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:22:52,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-08-27 06:22:52,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-08-27 06:22:52,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:22:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-08-27 06:22:52,084 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 20 [2021-08-27 06:22:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:52,085 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-08-27 06:22:52,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-08-27 06:22:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:22:52,086 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:52,086 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:52,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:52,286 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 06:22:52,287 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:22:52,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:52,287 INFO L82 PathProgramCache]: Analyzing trace with hash -503815686, now seen corresponding path program 1 times [2021-08-27 06:22:52,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:52,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996839073] [2021-08-27 06:22:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:52,288 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:52,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:52,290 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 06:22:52,297 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 06:22:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:52,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:22:52,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:52,647 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 06:22:52,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:52,885 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 06:22:52,885 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:52,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996839073] [2021-08-27 06:22:52,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996839073] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:52,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:52,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:22:52,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816024514] [2021-08-27 06:22:52,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:22:52,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:52,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:22:52,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:22:52,887 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:52,916 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-08-27 06:22:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:22:52,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-27 06:22:52,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:52,917 INFO L225 Difference]: With dead ends: 33 [2021-08-27 06:22:52,917 INFO L226 Difference]: Without dead ends: 33 [2021-08-27 06:22:52,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.2ms TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:22:52,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-08-27 06:22:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-08-27 06:22:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:22:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-08-27 06:22:52,920 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 20 [2021-08-27 06:22:52,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:52,920 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-08-27 06:22:52,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:22:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-08-27 06:22:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:22:52,921 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:52,921 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:52,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-08-27 06:22:53,128 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 06:22:53,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:22:53,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:53,128 INFO L82 PathProgramCache]: Analyzing trace with hash -503568140, now seen corresponding path program 1 times [2021-08-27 06:22:53,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:53,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405831672] [2021-08-27 06:22:53,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:53,129 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:53,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:53,130 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 06:22:53,132 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 06:22:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:53,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:22:53,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:53,355 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 06:22:53,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:53,484 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 06:22:53,485 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:53,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405831672] [2021-08-27 06:22:53,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405831672] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:22:53,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:53,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:22:53,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599584155] [2021-08-27 06:22:53,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:22:53,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:22:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:22:53,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:22:53,486 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:22:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:22:53,505 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2021-08-27 06:22:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:22:53,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2021-08-27 06:22:53,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:22:53,506 INFO L225 Difference]: With dead ends: 34 [2021-08-27 06:22:53,506 INFO L226 Difference]: Without dead ends: 24 [2021-08-27 06:22:53,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:22:53,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-08-27 06:22:53,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-08-27 06:22:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 06:22:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2021-08-27 06:22:53,508 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2021-08-27 06:22:53,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:22:53,508 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2021-08-27 06:22:53,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:22:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2021-08-27 06:22:53,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:22:53,508 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:22:53,509 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:22:53,517 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 06:22:53,709 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 06:22:53,709 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:22:53,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:22:53,710 INFO L82 PathProgramCache]: Analyzing trace with hash -2051414223, now seen corresponding path program 1 times [2021-08-27 06:22:53,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:22:53,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362002518] [2021-08-27 06:22:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:53,710 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:22:53,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:22:53,711 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 06:22:53,712 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 06:22:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:53,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:22:53,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:54,109 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 06:22:54,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:58,250 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:22:58,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362002518] [2021-08-27 06:22:58,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:22:58,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [354456842] [2021-08-27 06:22:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:58,251 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:22:58,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:22:58,252 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:22:58,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-08-27 06:22:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:58,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:22:58,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:58,527 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:22:58,527 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 26 treesize of output 29 [2021-08-27 06:23:02,880 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 06:23:02,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:09,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:23:09,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256451209] [2021-08-27 06:23:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:09,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:23:09,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:23:09,093 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:23:09,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 06:23:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:09,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:23:09,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:09,501 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 06:23:09,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:13,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:23:13,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:13,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:23:13,664 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:23:13,664 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:23:13,667 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:23:13,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:23:13,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:23:13,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:23:13,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:23:13,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:13,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:13,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:14,100 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 06:23:14,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:14,298 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:23:14,299 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:23:14,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:23:14 BoogieIcfgContainer [2021-08-27 06:23:14,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:23:14,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:23:14,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:23:14,307 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:23:14,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:22:49" (3/4) ... [2021-08-27 06:23:14,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:23:14,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:23:14,310 INFO L168 Benchmark]: Toolchain (without parser) took 26368.47 ms. Allocated memory was 52.4 MB in the beginning and 136.3 MB in the end (delta: 83.9 MB). Free memory was 28.1 MB in the beginning and 72.0 MB in the end (delta: -43.9 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:14,310 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.5 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:23:14,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.93 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 27.9 MB in the beginning and 39.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:14,311 INFO L168 Benchmark]: Boogie Preprocessor took 93.98 ms. Allocated memory is still 73.4 MB. Free memory was 39.2 MB in the beginning and 55.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:14,311 INFO L168 Benchmark]: RCFGBuilder took 1326.71 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 55.1 MB in the beginning and 48.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:14,312 INFO L168 Benchmark]: TraceAbstraction took 24441.94 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 47.4 MB in the beginning and 72.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:14,312 INFO L168 Benchmark]: Witness Printer took 2.56 ms. Allocated memory is still 136.3 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:23:14,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.5 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 496.93 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 27.9 MB in the beginning and 39.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.98 ms. Allocated memory is still 73.4 MB. Free memory was 39.2 MB in the beginning and 55.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1326.71 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 55.1 MB in the beginning and 48.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24441.94 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 47.4 MB in the beginning and 72.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 2.56 ms. Allocated memory is still 136.3 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 764]: 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 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L765] CALL entry_point() [L761] CALL, EXPR h_safe() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] return (int *)ldv_malloc(sizeof(int)); [L761] RET, EXPR h_safe() [L761] int *p = h_safe(); [L762] COND TRUE \read(*p) [L762] free(p) [L762] free(p) [L762] free(p) [L765] 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: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 340 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 24390.4ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 18.5ms, AutomataDifference: 341.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 120 SDtfs, 40 SDslu, 393 SDs, 0 SdLazy, 268 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 157 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 219.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 26.3ms AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.0ms SsaConstructionTime, 77.2ms SatisfiabilityAnalysisTime, 1522.0ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:23:14,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...