./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf 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_test13_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2e8cde882f52cb03ff4f3b61f5f3fe313955f91 ................................................................................................................................... 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_test13_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2e8cde882f52cb03ff4f3b61f5f3fe313955f91 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:45:45,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:45:45,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:45:45,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:45:45,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:45:45,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:45:45,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:45:45,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:45:45,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:45:45,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:45:45,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:45:45,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:45:45,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:45:45,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:45:45,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:45:45,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:45:45,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:45:45,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:45:45,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:45:45,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:45:45,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:45:45,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:45:45,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:45:45,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:45:45,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:45:45,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:45:45,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:45:45,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:45:45,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:45:45,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:45:45,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:45:45,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:45:45,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:45:45,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:45:45,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:45:45,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:45:45,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:45:45,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:45:45,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:45:45,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:45:45,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:45:45,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:45:45,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:45:45,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:45:45,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:45:45,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:45:45,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:45:45,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:45:45,578 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:45:45,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:45:45,578 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:45:45,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:45:45,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:45:45,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:45:45,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:45:45,580 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:45:45,581 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:45:45,581 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:45:45,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:45:45,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:45:45,581 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:45:45,581 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:45:45,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:45:45,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:45:45,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:45:45,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:45:45,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:45:45,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:45:45,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:45:45,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:45:45,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:45:45,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2e8cde882f52cb03ff4f3b61f5f3fe313955f91 [2021-08-30 17:45:45,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:45:45,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:45:45,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:45:45,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:45:45,891 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:45:45,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2021-08-30 17:45:45,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea26ef5aa/67c319de55e346faac674095d253e26f/FLAG970e8dd46 [2021-08-30 17:45:46,363 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:45:46,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2021-08-30 17:45:46,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea26ef5aa/67c319de55e346faac674095d253e26f/FLAG970e8dd46 [2021-08-30 17:45:46,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea26ef5aa/67c319de55e346faac674095d253e26f [2021-08-30 17:45:46,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:45:46,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:45:46,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:46,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:45:46,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:45:46,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:46" (1/1) ... [2021-08-30 17:45:46,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb7e7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:46, skipping insertion in model container [2021-08-30 17:45:46,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:46" (1/1) ... [2021-08-30 17:45:46,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:45:46,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:45:47,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:47,033 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) [2021-08-30 17:45:47,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d02829d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:47, skipping insertion in model container [2021-08-30 17:45:47,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:47,034 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:45:47,036 INFO L158 Benchmark]: Toolchain (without parser) took 310.25ms. Allocated memory is still 65.0MB. Free memory was 44.6MB in the beginning and 46.1MB in the end (delta: -1.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-30 17:45:47,037 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:45:47,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.68ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 46.1MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-30 17:45:47,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.68ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 46.1MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * 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-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:45:48,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:45:48,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:45:48,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:45:48,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:45:48,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:45:48,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:45:48,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:45:48,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:45:48,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:45:48,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:45:48,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:45:48,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:45:48,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:45:48,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:45:48,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:45:48,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:45:48,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:45:48,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:45:48,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:45:48,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:45:48,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:45:48,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:45:48,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:45:48,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:45:48,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:45:48,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:45:48,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:45:48,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:45:48,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:45:48,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:45:48,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:45:48,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:45:48,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:45:48,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:45:48,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:45:48,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:45:48,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:45:48,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:45:48,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:45:48,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:45:48,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:45:48,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:45:48,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:45:48,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:45:48,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:45:48,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:45:48,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:45:48,471 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:45:48,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:45:48,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:45:48,471 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:45:48,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:45:48,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:45:48,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:45:48,472 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:45:48,472 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:45:48,472 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:45:48,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:45:48,473 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:45:48,473 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:45:48,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:45:48,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:45:48,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:45:48,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:45:48,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:45:48,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:45:48,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:45:48,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:45:48,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:45:48,475 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:45:48,475 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:45:48,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:45:48,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:45:48,475 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2e8cde882f52cb03ff4f3b61f5f3fe313955f91 [2021-08-30 17:45:48,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:45:48,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:45:48,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:45:48,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:45:48,737 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:45:48,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2021-08-30 17:45:48,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f871cbc/becd1ce0e8414201b4d3a46f2564039d/FLAG688431d68 [2021-08-30 17:45:49,208 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:45:49,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2021-08-30 17:45:49,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f871cbc/becd1ce0e8414201b4d3a46f2564039d/FLAG688431d68 [2021-08-30 17:45:49,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f871cbc/becd1ce0e8414201b4d3a46f2564039d [2021-08-30 17:45:49,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:45:49,249 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:45:49,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:49,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:45:49,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:45:49,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc53a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49, skipping insertion in model container [2021-08-30 17:45:49,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:45:49,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:45:49,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:49,648 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:45:49,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:45:49,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:49,715 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:45:49,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:45:49,801 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:45:49,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49 WrapperNode [2021-08-30 17:45:49,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:45:49,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:45:49,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:45:49,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:45:49,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:45:49,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:45:49,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:45:49,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:45:49,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (1/1) ... [2021-08-30 17:45:49,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:45:49,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:45:49,916 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) [2021-08-30 17:45:49,919 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 [2021-08-30 17:45:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:45:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:45:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:45:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:45:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:45:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:45:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:45:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:45:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:45:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:45:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:45:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:45:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:45:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:45:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_13 [2021-08-30 17:45:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:45:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:45:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:45:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:45:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:45:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:45:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:45:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:45:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:45:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:45:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:45:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:45:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:45:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:45:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:45:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:45:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:45:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:45:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:45:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:45:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:45:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:45:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:45:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:45:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:45:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:45:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:45:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:45:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:45:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:45:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:45:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:45:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:45:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:45:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:45:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:45:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:45:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:45:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:45:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:45:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:45:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:45:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:45:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:45:49,965 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:45:49,966 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:45:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:45:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:45:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:45:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:45:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:45:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_13 [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:45:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:45:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:45:50,317 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:45:50,388 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:45:50,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:45:50,447 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-30 17:45:50,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:45:50 BoogieIcfgContainer [2021-08-30 17:45:50,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:45:50,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:45:50,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:45:50,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:45:50,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:45:49" (1/3) ... [2021-08-30 17:45:50,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e8cc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:45:50, skipping insertion in model container [2021-08-30 17:45:50,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:45:49" (2/3) ... [2021-08-30 17:45:50,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e8cc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:45:50, skipping insertion in model container [2021-08-30 17:45:50,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:45:50" (3/3) ... [2021-08-30 17:45:50,462 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test13_1.i [2021-08-30 17:45:50,466 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:45:50,467 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-30 17:45:50,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:45:50,505 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 [2021-08-30 17:45:50,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-30 17:45:50,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 65 states have (on average 1.5384615384615385) internal successors, (100), 94 states have internal predecessors, (100), 15 states have call successors, (15), 13 states have call predecessors, (15), 13 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-30 17:45:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:45:50,526 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:50,526 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:50,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:45:50,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:50,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1239054828, now seen corresponding path program 1 times [2021-08-30 17:45:50,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:50,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889615878] [2021-08-30 17:45:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:50,539 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:50,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:50,540 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) [2021-08-30 17:45:50,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 17:45:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:50,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-30 17:45:50,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:50,815 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-30 17:45:50,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-30 17:45:50,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-30 17:45:50,968 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 17:45:50,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2021-08-30 17:45:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:51,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:45:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:51,195 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:45:51,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889615878] [2021-08-30 17:45:51,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889615878] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:45:51,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:45:51,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-08-30 17:45:51,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963479252] [2021-08-30 17:45:51,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:45:51,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:45:51,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:45:51,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:45:51,221 INFO L87 Difference]: Start difference. First operand has 124 states, 65 states have (on average 1.5384615384615385) internal successors, (100), 94 states have internal predecessors, (100), 15 states have call successors, (15), 13 states have call predecessors, (15), 13 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:45:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:45:51,522 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2021-08-30 17:45:51,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 17:45:51,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-08-30 17:45:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:45:51,529 INFO L225 Difference]: With dead ends: 57 [2021-08-30 17:45:51,529 INFO L226 Difference]: Without dead ends: 54 [2021-08-30 17:45:51,530 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 9 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.58ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-08-30 17:45:51,533 INFO L928 BasicCegarLoop]: 9 mSDtfsCounter, 108 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.22ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 195.86ms IncrementalHoareTripleChecker+Time [2021-08-30 17:45:51,534 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 12 Invalid, 202 Unknown, 0 Unchecked, 5.22ms Time], IncrementalHoareTripleChecker [18 Valid, 157 Invalid, 0 Unknown, 27 Unchecked, 195.86ms Time] [2021-08-30 17:45:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-08-30 17:45:51,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2021-08-30 17:45:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 24 states have (on average 1.625) internal successors, (39), 38 states have internal predecessors, (39), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:45:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2021-08-30 17:45:51,559 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 17 [2021-08-30 17:45:51,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:45:51,559 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2021-08-30 17:45:51,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:45:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2021-08-30 17:45:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:45:51,560 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:45:51,561 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:45:51,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-30 17:45:51,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:45:51,770 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:45:51,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:45:51,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1239054827, now seen corresponding path program 1 times [2021-08-30 17:45:51,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:45:51,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045225847] [2021-08-30 17:45:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:45:51,771 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:45:51,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:45:51,772 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) [2021-08-30 17:45:51,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 17:45:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:45:51,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-30 17:45:51,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:45:51,956 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-30 17:45:51,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 35 [2021-08-30 17:45:51,968 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:45:51,969 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 1 case distinctions, treesize of input 35 treesize of output 36 [2021-08-30 17:45:52,400 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-08-30 17:45:52,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 56 [2021-08-30 17:45:52,424 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-30 17:45:52,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 52 [2021-08-30 17:45:54,617 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-08-30 17:45:54,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 61 [2021-08-30 17:45:54,653 INFO L354 Elim1Store]: treesize reduction 18, result has 63.3 percent of original size [2021-08-30 17:45:54,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 72 [2021-08-30 17:45:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:45:55,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:06,916 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:06,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045225847] [2021-08-30 17:46:06,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045225847] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:06,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:06,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-08-30 17:46:06,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902689746] [2021-08-30 17:46:06,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-30 17:46:06,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:06,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-30 17:46:06,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=140, Unknown=4, NotChecked=0, Total=182 [2021-08-30 17:46:06,918 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 11 states have internal predecessors, (18), 5 states have call successors, (11), 7 states have call predecessors, (11), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:07,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:07,274 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-08-30 17:46:07,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 17:46:07,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 11 states have internal predecessors, (18), 5 states have call successors, (11), 7 states have call predecessors, (11), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 17 [2021-08-30 17:46:07,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:07,277 INFO L225 Difference]: With dead ends: 66 [2021-08-30 17:46:07,277 INFO L226 Difference]: Without dead ends: 66 [2021-08-30 17:46:07,277 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 13236.66ms TimeCoverageRelationStatistics Valid=44, Invalid=162, Unknown=4, NotChecked=0, Total=210 [2021-08-30 17:46:07,278 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 24 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 269.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.33ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 304.48ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:07,278 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 24 Invalid, 272 Unknown, 0 Unchecked, 2.33ms Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 138 Unchecked, 304.48ms Time] [2021-08-30 17:46:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-08-30 17:46:07,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2021-08-30 17:46:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 46 states have internal predecessors, (47), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2021-08-30 17:46:07,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2021-08-30 17:46:07,293 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 17 [2021-08-30 17:46:07,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:07,293 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2021-08-30 17:46:07,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 11 states have internal predecessors, (18), 5 states have call successors, (11), 7 states have call predecessors, (11), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:07,293 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2021-08-30 17:46:07,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:46:07,294 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:07,294 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:07,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:07,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:07,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:07,497 INFO L82 PathProgramCache]: Analyzing trace with hash 503755508, now seen corresponding path program 1 times [2021-08-30 17:46:07,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:07,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635427905] [2021-08-30 17:46:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:07,497 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:07,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:07,498 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) [2021-08-30 17:46:07,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 17:46:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:07,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:46:07,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:07,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:07,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:07,722 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:07,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635427905] [2021-08-30 17:46:07,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635427905] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:07,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:07,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:46:07,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129459806] [2021-08-30 17:46:07,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:46:07,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:07,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:46:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:07,724 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:46:07,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:07,889 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2021-08-30 17:46:07,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:46:07,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-30 17:46:07,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:07,890 INFO L225 Difference]: With dead ends: 58 [2021-08-30 17:46:07,890 INFO L226 Difference]: Without dead ends: 58 [2021-08-30 17:46:07,890 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.81ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:07,891 INFO L928 BasicCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.63ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 156.10ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:07,891 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 63 Invalid, 160 Unknown, 0 Unchecked, 1.63ms Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 156.10ms Time] [2021-08-30 17:46:07,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-08-30 17:46:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-08-30 17:46:07,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 40 states have internal predecessors, (41), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-30 17:46:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2021-08-30 17:46:07,895 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 17 [2021-08-30 17:46:07,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:07,895 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2021-08-30 17:46:07,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:46:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2021-08-30 17:46:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 17:46:07,896 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:07,896 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:07,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:08,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:08,103 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:08,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1733078590, now seen corresponding path program 1 times [2021-08-30 17:46:08,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:08,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263273741] [2021-08-30 17:46:08,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:08,104 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:08,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:08,105 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) [2021-08-30 17:46:08,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 17:46:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:08,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-30 17:46:08,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:08,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-08-30 17:46:08,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:08,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:08,367 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-08-30 17:46:08,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-08-30 17:46:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:08,436 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:08,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263273741] [2021-08-30 17:46:08,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263273741] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:08,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:08,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-30 17:46:08,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306183487] [2021-08-30 17:46:08,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:46:08,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:08,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:46:08,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:46:08,437 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:46:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:08,820 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-08-30 17:46:08,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:46:08,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2021-08-30 17:46:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:08,821 INFO L225 Difference]: With dead ends: 71 [2021-08-30 17:46:08,821 INFO L226 Difference]: Without dead ends: 71 [2021-08-30 17:46:08,821 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 108.55ms TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-08-30 17:46:08,822 INFO L928 BasicCegarLoop]: 15 mSDtfsCounter, 46 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 259.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 302.92ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:08,822 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 66 Invalid, 255 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [6 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 302.92ms Time] [2021-08-30 17:46:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-08-30 17:46:08,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 55. [2021-08-30 17:46:08,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 39 states have internal predecessors, (40), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-30 17:46:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2021-08-30 17:46:08,825 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 20 [2021-08-30 17:46:08,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:08,825 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2021-08-30 17:46:08,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:46:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2021-08-30 17:46:08,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 17:46:08,826 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:08,826 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:08,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:09,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:09,027 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:09,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:09,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1733078589, now seen corresponding path program 1 times [2021-08-30 17:46:09,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:09,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654168818] [2021-08-30 17:46:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:09,028 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:09,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:09,029 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) [2021-08-30 17:46:09,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 17:46:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:09,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 50 conjunts are in the unsatisfiable core [2021-08-30 17:46:09,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:09,170 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:46:09,170 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 1 case distinctions, treesize of input 22 treesize of output 23 [2021-08-30 17:46:09,198 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-30 17:46:09,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 36 [2021-08-30 17:46:09,620 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-08-30 17:46:09,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 54 [2021-08-30 17:46:09,627 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-30 17:46:09,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 45 [2021-08-30 17:46:11,794 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-08-30 17:46:11,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 63 [2021-08-30 17:46:11,828 INFO L354 Elim1Store]: treesize reduction 18, result has 63.3 percent of original size [2021-08-30 17:46:11,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 74 [2021-08-30 17:46:12,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-08-30 17:46:12,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-08-30 17:46:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:12,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:21,120 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((|v_ldv_malloc_#res.base_20| (_ BitVec 32))) (and (or (exists ((v_ldv_malloc_~size_19 (_ BitVec 32))) (not (bvule (bvadd (_ bv8 32) (select (select |c_#memory_$Pointer$.offset| |c_~#global_list_13~0.base|) |c_~#global_list_13~0.offset|)) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_20| v_ldv_malloc_~size_19) (select (select |c_#memory_$Pointer$.base| |c_~#global_list_13~0.base|) |c_~#global_list_13~0.offset|))))) (not (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_~#global_list_13~0.base|) |c_~#global_list_13~0.offset|))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_20|)))))))))) (forall ((|v_ldv_malloc_#res.base_21| (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_21|)))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv8 32) (select (select |c_#memory_$Pointer$.offset| |c_~#global_list_13~0.base|) |c_~#global_list_13~0.offset|)) (select (store |c_#length| |v_ldv_malloc_#res.base_21| ldv_malloc_~size) (select (select |c_#memory_$Pointer$.base| |c_~#global_list_13~0.base|) |c_~#global_list_13~0.offset|)))) (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_~#global_list_13~0.base|) |c_~#global_list_13~0.offset|))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1))))))) is different from true [2021-08-30 17:46:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:27,714 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:27,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654168818] [2021-08-30 17:46:27,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654168818] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:27,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:27,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-08-30 17:46:27,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708354935] [2021-08-30 17:46:27,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-30 17:46:27,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-30 17:46:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=291, Unknown=5, NotChecked=34, Total=380 [2021-08-30 17:46:27,716 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 20 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 15 states have internal predecessors, (22), 7 states have call successors, (13), 9 states have call predecessors, (13), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:38,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:38,770 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2021-08-30 17:46:38,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-30 17:46:38,773 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 15 states have internal predecessors, (22), 7 states have call successors, (13), 9 states have call predecessors, (13), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 20 [2021-08-30 17:46:38,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:38,773 INFO L225 Difference]: With dead ends: 56 [2021-08-30 17:46:38,773 INFO L226 Difference]: Without dead ends: 56 [2021-08-30 17:46:38,774 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 27540.94ms TimeCoverageRelationStatistics Valid=119, Invalid=525, Unknown=10, NotChecked=48, Total=702 [2021-08-30 17:46:38,775 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 66 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 586.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.45ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 229 IncrementalHoareTripleChecker+Unchecked, 657.59ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:38,775 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 45 Invalid, 548 Unknown, 0 Unchecked, 3.45ms Time], IncrementalHoareTripleChecker [24 Valid, 295 Invalid, 0 Unknown, 229 Unchecked, 657.59ms Time] [2021-08-30 17:46:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-08-30 17:46:38,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-08-30 17:46:38,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 38 states have internal predecessors, (39), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-30 17:46:38,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2021-08-30 17:46:38,779 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 20 [2021-08-30 17:46:38,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:38,779 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2021-08-30 17:46:38,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 15 states have internal predecessors, (22), 7 states have call successors, (13), 9 states have call predecessors, (13), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2021-08-30 17:46:38,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:46:38,780 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:38,780 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:38,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:38,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:38,987 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:38,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:38,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1106040363, now seen corresponding path program 1 times [2021-08-30 17:46:38,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:38,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132599337] [2021-08-30 17:46:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:38,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:38,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:38,993 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) [2021-08-30 17:46:38,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 17:46:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:39,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:46:39,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:39,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:39,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:39,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132599337] [2021-08-30 17:46:39,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132599337] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:39,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:39,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:46:39,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266755883] [2021-08-30 17:46:39,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:46:39,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:46:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:39,169 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:46:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:39,331 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-08-30 17:46:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:46:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2021-08-30 17:46:39,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:39,332 INFO L225 Difference]: With dead ends: 56 [2021-08-30 17:46:39,332 INFO L226 Difference]: Without dead ends: 56 [2021-08-30 17:46:39,332 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.59ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:39,333 INFO L928 BasicCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 155.49ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:39,333 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 63 Invalid, 145 Unknown, 0 Unchecked, 1.34ms Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 155.49ms Time] [2021-08-30 17:46:39,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-08-30 17:46:39,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-08-30 17:46:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 38 states have internal predecessors, (38), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-30 17:46:39,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-08-30 17:46:39,336 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 19 [2021-08-30 17:46:39,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:39,336 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-08-30 17:46:39,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:46:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-08-30 17:46:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:46:39,336 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:39,336 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:39,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:39,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:39,537 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:39,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:39,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1302553868, now seen corresponding path program 1 times [2021-08-30 17:46:39,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:39,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981927592] [2021-08-30 17:46:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:39,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:39,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:39,538 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:39,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-30 17:46:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:39,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-30 17:46:39,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:39,681 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-08-30 17:46:39,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-08-30 17:46:39,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-30 17:46:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:39,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:39,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2021-08-30 17:46:39,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:39,907 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:39,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981927592] [2021-08-30 17:46:39,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981927592] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:39,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:39,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-08-30 17:46:39,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496002105] [2021-08-30 17:46:39,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 17:46:39,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:39,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 17:46:39,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:46:39,908 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-08-30 17:46:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:40,111 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-08-30 17:46:40,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:46:40,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 19 [2021-08-30 17:46:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:40,112 INFO L225 Difference]: With dead ends: 58 [2021-08-30 17:46:40,112 INFO L226 Difference]: Without dead ends: 55 [2021-08-30 17:46:40,112 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 53.97ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:46:40,113 INFO L928 BasicCegarLoop]: 9 mSDtfsCounter, 72 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 148.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.67ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 173.60ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:40,113 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 12 Invalid, 178 Unknown, 0 Unchecked, 1.67ms Time], IncrementalHoareTripleChecker [28 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 173.60ms Time] [2021-08-30 17:46:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-08-30 17:46:40,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-08-30 17:46:40,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 37 states have internal predecessors, (37), 9 states have call successors, (9), 8 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-08-30 17:46:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-08-30 17:46:40,116 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 19 [2021-08-30 17:46:40,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:40,116 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-08-30 17:46:40,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-08-30 17:46:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-08-30 17:46:40,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-30 17:46:40,117 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:40,117 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:40,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-30 17:46:40,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:40,324 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:40,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:40,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1302553867, now seen corresponding path program 1 times [2021-08-30 17:46:40,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:40,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820476844] [2021-08-30 17:46:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:40,325 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:40,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:40,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:40,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-30 17:46:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:40,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-30 17:46:40,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:40,452 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:46:40,453 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 1 case distinctions, treesize of input 9 treesize of output 11 [2021-08-30 17:46:40,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-08-30 17:46:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:40,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:40,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-30 17:46:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:40,942 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:40,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820476844] [2021-08-30 17:46:40,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820476844] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:40,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:40,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-30 17:46:40,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923889191] [2021-08-30 17:46:40,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 17:46:40,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:40,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 17:46:40,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-30 17:46:40,944 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (11), 7 states have call predecessors, (11), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-30 17:46:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:41,606 INFO L93 Difference]: Finished difference Result 60 states and 59 transitions. [2021-08-30 17:46:41,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 17:46:41,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (11), 7 states have call predecessors, (11), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 19 [2021-08-30 17:46:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:41,607 INFO L225 Difference]: With dead ends: 60 [2021-08-30 17:46:41,607 INFO L226 Difference]: Without dead ends: 48 [2021-08-30 17:46:41,607 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 237.00ms TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-08-30 17:46:41,608 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 54 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 474.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.50ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 546.08ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:41,608 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 27 Invalid, 277 Unknown, 0 Unchecked, 5.50ms Time], IncrementalHoareTripleChecker [16 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 546.08ms Time] [2021-08-30 17:46:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-30 17:46:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-08-30 17:46:41,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 32 states have internal predecessors, (32), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:46:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 47 transitions. [2021-08-30 17:46:41,611 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 47 transitions. Word has length 19 [2021-08-30 17:46:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:41,611 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 47 transitions. [2021-08-30 17:46:41,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (11), 7 states have call predecessors, (11), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-30 17:46:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 47 transitions. [2021-08-30 17:46:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:46:41,612 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:41,612 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:41,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:41,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:41,819 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:41,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:41,819 INFO L82 PathProgramCache]: Analyzing trace with hash 2109138627, now seen corresponding path program 1 times [2021-08-30 17:46:41,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:41,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837875598] [2021-08-30 17:46:41,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:41,819 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:41,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:41,820 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:41,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-30 17:46:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:41,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 17:46:41,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:41,936 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 [2021-08-30 17:46:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:42,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:42,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:42,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:42,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837875598] [2021-08-30 17:46:42,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837875598] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:42,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:42,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-08-30 17:46:42,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041509273] [2021-08-30 17:46:42,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-30 17:46:42,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:42,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-30 17:46:42,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-30 17:46:42,095 INFO L87 Difference]: Start difference. First operand 48 states and 47 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:46:42,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:42,354 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2021-08-30 17:46:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 17:46:42,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-08-30 17:46:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:42,355 INFO L225 Difference]: With dead ends: 46 [2021-08-30 17:46:42,355 INFO L226 Difference]: Without dead ends: 46 [2021-08-30 17:46:42,355 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 85.87ms TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-30 17:46:42,356 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 25 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 201.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.83ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 235.68ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:42,356 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 76 Invalid, 248 Unknown, 0 Unchecked, 1.83ms Time], IncrementalHoareTripleChecker [3 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 235.68ms Time] [2021-08-30 17:46:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-30 17:46:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-08-30 17:46:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.25) internal successors, (30), 30 states have internal predecessors, (30), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:46:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-08-30 17:46:42,359 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 21 [2021-08-30 17:46:42,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:42,359 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-08-30 17:46:42,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:46:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-08-30 17:46:42,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-30 17:46:42,360 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:42,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:42,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:42,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:42,568 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __ldv_list_addErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:42,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:42,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2109138628, now seen corresponding path program 1 times [2021-08-30 17:46:42,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:42,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134606099] [2021-08-30 17:46:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:42,569 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:42,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:42,569 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:42,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-30 17:46:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:42,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-30 17:46:42,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:42,720 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 [2021-08-30 17:46:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:42,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:43,422 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:43,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134606099] [2021-08-30 17:46:43,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134606099] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:43,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:43,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-08-30 17:46:43,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667646179] [2021-08-30 17:46:43,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 17:46:43,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:43,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 17:46:43,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-08-30 17:46:43,423 INFO L87 Difference]: Start difference. First operand 46 states and 45 transitions. Second operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 12 states have internal predecessors, (22), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:46:44,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:44,224 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-08-30 17:46:44,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 17:46:44,224 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 12 states have internal predecessors, (22), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-08-30 17:46:44,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:44,225 INFO L225 Difference]: With dead ends: 44 [2021-08-30 17:46:44,225 INFO L226 Difference]: Without dead ends: 44 [2021-08-30 17:46:44,225 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 551.54ms TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-08-30 17:46:44,225 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 619.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.26ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 709.24ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:44,226 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 121 Invalid, 377 Unknown, 0 Unchecked, 4.26ms Time], IncrementalHoareTripleChecker [4 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 709.24ms Time] [2021-08-30 17:46:44,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-08-30 17:46:44,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-08-30 17:46:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 28 states have internal predecessors, (28), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:46:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2021-08-30 17:46:44,228 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 21 [2021-08-30 17:46:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:44,228 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2021-08-30 17:46:44,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 12 states have internal predecessors, (22), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:46:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2021-08-30 17:46:44,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:46:44,229 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:44,229 INFO L513 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] [2021-08-30 17:46:44,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:44,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:44,436 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __ldv_list_addErr6REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:44,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:44,436 INFO L82 PathProgramCache]: Analyzing trace with hash -342340858, now seen corresponding path program 1 times [2021-08-30 17:46:44,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:44,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005109123] [2021-08-30 17:46:44,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:44,437 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:44,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:44,437 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:44,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-30 17:46:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:44,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:46:44,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:44,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:44,620 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:44,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005109123] [2021-08-30 17:46:44,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005109123] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:44,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:44,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-30 17:46:44,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063234998] [2021-08-30 17:46:44,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:46:44,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:44,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:46:44,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:46:44,621 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:46:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:44,722 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2021-08-30 17:46:44,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:46:44,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-08-30 17:46:44,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:44,723 INFO L225 Difference]: With dead ends: 43 [2021-08-30 17:46:44,723 INFO L226 Difference]: Without dead ends: 43 [2021-08-30 17:46:44,723 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.65ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:46:44,723 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.82ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:44,724 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 50 Invalid, 99 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 92.82ms Time] [2021-08-30 17:46:44,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-30 17:46:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-08-30 17:46:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.125) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:46:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2021-08-30 17:46:44,726 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 23 [2021-08-30 17:46:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:44,726 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2021-08-30 17:46:44,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 17:46:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2021-08-30 17:46:44,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:46:44,727 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:44,727 INFO L513 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] [2021-08-30 17:46:44,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:44,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:44,933 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __ldv_list_addErr7REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:44,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:44,933 INFO L82 PathProgramCache]: Analyzing trace with hash -342340857, now seen corresponding path program 1 times [2021-08-30 17:46:44,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:44,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677013027] [2021-08-30 17:46:44,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:44,934 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:44,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:44,935 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:44,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-30 17:46:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:45,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 17:46:45,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:45,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:45,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-30 17:46:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:45,467 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:45,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677013027] [2021-08-30 17:46:45,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677013027] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:45,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:45,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-08-30 17:46:45,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053191022] [2021-08-30 17:46:45,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-30 17:46:45,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:45,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-30 17:46:45,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-08-30 17:46:45,468 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand has 14 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:46,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:46,013 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-08-30 17:46:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 17:46:46,014 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 23 [2021-08-30 17:46:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:46,014 INFO L225 Difference]: With dead ends: 42 [2021-08-30 17:46:46,014 INFO L226 Difference]: Without dead ends: 42 [2021-08-30 17:46:46,015 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 319.63ms TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-08-30 17:46:46,015 INFO L928 BasicCegarLoop]: 13 mSDtfsCounter, 54 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 397.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.27ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 440.25ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:46,015 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 101 Invalid, 198 Unknown, 0 Unchecked, 2.27ms Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 440.25ms Time] [2021-08-30 17:46:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-30 17:46:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-30 17:46:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:46:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2021-08-30 17:46:46,017 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 23 [2021-08-30 17:46:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:46,017 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2021-08-30 17:46:46,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:46:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2021-08-30 17:46:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-30 17:46:46,018 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:46,018 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:46,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:46,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:46,221 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:46,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:46,221 INFO L82 PathProgramCache]: Analyzing trace with hash 891555764, now seen corresponding path program 1 times [2021-08-30 17:46:46,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:46,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910157412] [2021-08-30 17:46:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:46,221 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:46,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:46,223 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:46,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-30 17:46:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:46,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 17:46:46,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:46,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:46,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-08-30 17:46:46,958 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:46,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-08-30 17:46:47,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:47,090 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:47,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910157412] [2021-08-30 17:46:47,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910157412] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:47,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:47,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-08-30 17:46:47,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375693820] [2021-08-30 17:46:47,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-30 17:46:47,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:47,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-30 17:46:47,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-08-30 17:46:47,091 INFO L87 Difference]: Start difference. First operand 42 states and 41 transitions. Second operand has 15 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 7 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2021-08-30 17:46:47,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:47,667 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2021-08-30 17:46:47,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 17:46:47,667 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 7 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) Word has length 33 [2021-08-30 17:46:47,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:47,668 INFO L225 Difference]: With dead ends: 41 [2021-08-30 17:46:47,668 INFO L226 Difference]: Without dead ends: 41 [2021-08-30 17:46:47,668 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 388.35ms TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-08-30 17:46:47,669 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 63 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 425.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.93ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 480.78ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:47,669 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 22 Invalid, 275 Unknown, 0 Unchecked, 2.93ms Time], IncrementalHoareTripleChecker [28 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 480.78ms Time] [2021-08-30 17:46:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-30 17:46:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-30 17:46:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 25 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:46:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2021-08-30 17:46:47,671 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 33 [2021-08-30 17:46:47,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:47,671 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2021-08-30 17:46:47,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 7 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2021-08-30 17:46:47,671 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2021-08-30 17:46:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-30 17:46:47,671 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:47,671 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:47,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:47,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:47,872 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:47,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1868424939, now seen corresponding path program 1 times [2021-08-30 17:46:47,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:47,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431056156] [2021-08-30 17:46:47,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:47,873 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:47,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:47,873 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:47,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-30 17:46:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:46:47,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 35 conjunts are in the unsatisfiable core [2021-08-30 17:46:47,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:46:48,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-08-30 17:46:48,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-08-30 17:46:48,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-08-30 17:46:48,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-08-30 17:46:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:48,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:46:48,835 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:48,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2021-08-30 17:46:49,237 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:49,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-08-30 17:46:49,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-08-30 17:46:49,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-08-30 17:46:49,692 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:49,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-08-30 17:46:49,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-08-30 17:46:49,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-08-30 17:46:50,134 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-30 17:46:50,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-08-30 17:46:50,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:46:50,843 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:46:50,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431056156] [2021-08-30 17:46:50,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431056156] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:46:50,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:46:50,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 25 [2021-08-30 17:46:50,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035589129] [2021-08-30 17:46:50,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-30 17:46:50,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:46:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-30 17:46:50,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=564, Unknown=0, NotChecked=0, Total=650 [2021-08-30 17:46:50,845 INFO L87 Difference]: Start difference. First operand 41 states and 40 transitions. Second operand has 26 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 9 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2021-08-30 17:46:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:46:52,101 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2021-08-30 17:46:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-30 17:46:52,102 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 9 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) Word has length 34 [2021-08-30 17:46:52,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:46:52,102 INFO L225 Difference]: With dead ends: 40 [2021-08-30 17:46:52,102 INFO L226 Difference]: Without dead ends: 40 [2021-08-30 17:46:52,103 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1829.18ms TimeCoverageRelationStatistics Valid=226, Invalid=1180, Unknown=0, NotChecked=0, Total=1406 [2021-08-30 17:46:52,103 INFO L928 BasicCegarLoop]: 9 mSDtfsCounter, 73 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 613.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.66ms SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 691.30ms IncrementalHoareTripleChecker+Time [2021-08-30 17:46:52,103 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 21 Invalid, 479 Unknown, 0 Unchecked, 3.66ms Time], IncrementalHoareTripleChecker [108 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 691.30ms Time] [2021-08-30 17:46:52,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-08-30 17:46:52,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-08-30 17:46:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.0) internal successors, (24), 24 states have internal predecessors, (24), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-30 17:46:52,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2021-08-30 17:46:52,105 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 34 [2021-08-30 17:46:52,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:46:52,106 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2021-08-30 17:46:52,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 2.0) internal successors, (42), 21 states have internal predecessors, (42), 9 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2021-08-30 17:46:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2021-08-30 17:46:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-30 17:46:52,107 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:46:52,107 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:46:52,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-08-30 17:46:52,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:52,314 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-30 17:46:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:46:52,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1326046929, now seen corresponding path program 1 times [2021-08-30 17:46:52,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:46:52,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437717127] [2021-08-30 17:46:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:46:52,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:46:52,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:46:52,316 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:46:52,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-30 17:46:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:46:52,435 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 17:46:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:46:52,530 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-30 17:46:52,531 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 17:46:52,531 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (70 of 71 remaining) [2021-08-30 17:46:52,532 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (69 of 71 remaining) [2021-08-30 17:46:52,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (68 of 71 remaining) [2021-08-30 17:46:52,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (67 of 71 remaining) [2021-08-30 17:46:52,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (66 of 71 remaining) [2021-08-30 17:46:52,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (65 of 71 remaining) [2021-08-30 17:46:52,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (64 of 71 remaining) [2021-08-30 17:46:52,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (63 of 71 remaining) [2021-08-30 17:46:52,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (62 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (61 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (60 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (59 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (58 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (57 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (56 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (55 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (54 of 71 remaining) [2021-08-30 17:46:52,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (53 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (52 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (51 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (50 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (49 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (48 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (47 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (46 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (45 of 71 remaining) [2021-08-30 17:46:52,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (44 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (43 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (42 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (41 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (40 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (39 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (38 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (37 of 71 remaining) [2021-08-30 17:46:52,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (36 of 71 remaining) [2021-08-30 17:46:52,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (35 of 71 remaining) [2021-08-30 17:46:52,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (34 of 71 remaining) [2021-08-30 17:46:52,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (33 of 71 remaining) [2021-08-30 17:46:52,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (32 of 71 remaining) [2021-08-30 17:46:52,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (31 of 71 remaining) [2021-08-30 17:46:52,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (30 of 71 remaining) [2021-08-30 17:46:52,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (29 of 71 remaining) [2021-08-30 17:46:52,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (28 of 71 remaining) [2021-08-30 17:46:52,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (27 of 71 remaining) [2021-08-30 17:46:52,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (26 of 71 remaining) [2021-08-30 17:46:52,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (25 of 71 remaining) [2021-08-30 17:46:52,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (24 of 71 remaining) [2021-08-30 17:46:52,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (23 of 71 remaining) [2021-08-30 17:46:52,538 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (22 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (21 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (20 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (19 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (18 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (17 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (16 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (15 of 71 remaining) [2021-08-30 17:46:52,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (14 of 71 remaining) [2021-08-30 17:46:52,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (13 of 71 remaining) [2021-08-30 17:46:52,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (12 of 71 remaining) [2021-08-30 17:46:52,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (8 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (7 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (6 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (5 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (4 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (3 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (2 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (1 of 71 remaining) [2021-08-30 17:46:52,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (0 of 71 remaining) [2021-08-30 17:46:52,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-30 17:46:52,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:46:52,763 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:46:52,771 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-30 17:46:52,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:46:52 BoogieIcfgContainer [2021-08-30 17:46:52,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:46:52,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:46:52,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:46:52,802 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:46:52,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:45:50" (3/4) ... [2021-08-30 17:46:52,804 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:46:52,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:46:52,804 INFO L158 Benchmark]: Toolchain (without parser) took 63555.18ms. Allocated memory was 56.6MB in the beginning and 111.1MB in the end (delta: 54.5MB). Free memory was 32.9MB in the beginning and 84.0MB in the end (delta: -51.1MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2021-08-30 17:46:52,805 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:46:52,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.67ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 32.8MB in the beginning and 50.2MB in the end (delta: -17.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-08-30 17:46:52,805 INFO L158 Benchmark]: Boogie Preprocessor took 87.34ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 45.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 17:46:52,805 INFO L158 Benchmark]: RCFGBuilder took 566.15ms. Allocated memory is still 71.3MB. Free memory was 45.4MB in the beginning and 48.0MB in the end (delta: -2.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-08-30 17:46:52,805 INFO L158 Benchmark]: TraceAbstraction took 62343.81ms. Allocated memory was 71.3MB in the beginning and 111.1MB in the end (delta: 39.8MB). Free memory was 47.7MB in the beginning and 84.0MB in the end (delta: -36.3MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2021-08-30 17:46:52,806 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 111.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:46:52,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.67ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 32.8MB in the beginning and 50.2MB in the end (delta: -17.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.34ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 45.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 566.15ms. Allocated memory is still 71.3MB. Free memory was 45.4MB in the beginning and 48.0MB in the end (delta: -2.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 62343.81ms. Allocated memory was 71.3MB in the beginning and 111.1MB in the end (delta: 39.8MB). Free memory was 47.7MB in the beginning and 84.0MB in the end (delta: -36.3MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 111.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 772]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 772. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] struct ldv_list_head global_list_13 = { &(global_list_13), &(global_list_13) }; VAL [\old(global_list_13)=null, \old(global_list_13)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}] [L773] CALL entry_point() VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}] [L769] CALL alloc_13() VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}] [L763] CALL, EXPR ldv_malloc(sizeof(struct A13)) VAL [\old(size)=12, global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L763] RET, EXPR ldv_malloc(sizeof(struct A13)) VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, ldv_malloc(sizeof(struct A13))={1:0}] [L763] struct A13 *p = (struct A13 *)ldv_malloc(sizeof(struct A13)); [L764] COND TRUE \read(*p) VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, p={1:0}] [L765] CALL ldv_list_add(&p->list, &global_list_13) VAL [global_list_13={-2147483648:0}, head={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}] [L559] EXPR head->next VAL [global_list_13={-2147483648:0}, head={-2147483648:0}, head={-2147483648:0}, head->next={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}, new={1:4}] [L559] CALL __ldv_list_add(new, head, head->next) VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}, next={-2147483648:0}, prev={-2147483648:0}] [L547] next->prev = new VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}, new={1:4}, next={-2147483648:0}, next={-2147483648:0}, prev={-2147483648:0}, prev={-2147483648:0}] [L548] new->next = next VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}, new={1:4}, next={-2147483648:0}, next={-2147483648:0}, prev={-2147483648:0}, prev={-2147483648:0}] [L549] new->prev = prev VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}, new={1:4}, next={-2147483648:0}, next={-2147483648:0}, prev={-2147483648:0}, prev={-2147483648:0}] [L550] prev->next = new VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}, new={1:4}, next={-2147483648:0}, next={-2147483648:0}, prev={-2147483648:0}, prev={-2147483648:0}] [L559] RET __ldv_list_add(new, head, head->next) VAL [global_list_13={-2147483648:0}, head={-2147483648:0}, head={-2147483648:0}, head->next={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, new={1:4}, new={1:4}] [L765] RET ldv_list_add(&p->list, &global_list_13) VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, p={1:0}] [L769] RET alloc_13() VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}] [L770] CALL LDV_INIT_LIST_HEAD(&global_list_13) VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, list={-2147483648:0}] [L540] list->next = list VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, list={-2147483648:0}, list={-2147483648:0}] [L541] list->prev = list VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}, list={-2147483648:0}, list={-2147483648:0}] [L770] RET LDV_INIT_LIST_HEAD(&global_list_13) VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}] [L773] RET entry_point() VAL [global_list_13={-2147483648:0}, ldv_global_msg_list={-1073741824:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 335 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 62263.86ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 17.46ms, AutomataDifference: 16901.20ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 8.76ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 640 SdHoareTripleChecker+Valid, 5142.20ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 627 mSDsluCounter, 703 SdHoareTripleChecker+Invalid, 4484.26ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 394 IncrementalHoareTripleChecker+Unchecked, 1708 mSDsCounter, 247 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3072 IncrementalHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 247 mSolverCounterUnsat, 176 mSDtfsCounter, 3072 mSolverCounterSat, 39.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 648 GetRequests, 428 SyntacticMatches, 33 SemanticMatches, 187 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 44557.32ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 57.00ms AutomataMinimizationTime, 14 MinimizatonAttempts, 25 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 129.86ms SsaConstructionTime, 395.50ms SatisfiabilityAnalysisTime, 40326.24ms InterpolantComputationTime, 342 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 578 ConstructedInterpolants, 38 QuantifiedInterpolants, 6201 SizeOfPredicates, 128 NumberOfNonLiveVariables, 1898 ConjunctsInSsa, 229 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 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 [2021-08-30 17:46:52,833 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...