./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.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_test18_3.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 95f114a9b30107b01a4872fae9e8e5c20e3a4272 .................................................................................................................................... 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_test18_3.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 95f114a9b30107b01a4872fae9e8e5c20e3a4272 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:49:35,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:49:35,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:49:35,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:49:35,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:49:35,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:49:35,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:49:35,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:49:35,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:49:35,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:49:35,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:49:35,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:49:35,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:49:35,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:49:35,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:49:35,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:49:35,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:49:35,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:49:35,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:49:35,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:49:35,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:49:35,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:49:35,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:49:35,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:49:35,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:49:35,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:49:35,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:49:35,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:49:35,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:49:35,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:49:35,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:49:35,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:49:35,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:49:35,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:49:35,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:49:35,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:49:35,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:49:35,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:49:35,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:49:35,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:49:35,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:49:35,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:49:35,749 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:49:35,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:49:35,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:49:35,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:49:35,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:49:35,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:49:35,751 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:49:35,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:49:35,752 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:49:35,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:49:35,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:49:35,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:49:35,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:49:35,761 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:49:35,761 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:49:35,761 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:49:35,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:49:35,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:49:35,762 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:49:35,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:49:35,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:49:35,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:49:35,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:49:35,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:49:35,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:49:35,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:49:35,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:49:35,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:49:35,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:49:35,764 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f114a9b30107b01a4872fae9e8e5c20e3a4272 [2021-08-30 17:49:36,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:49:36,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:49:36,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:49:36,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:49:36,136 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:49:36,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-30 17:49:36,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3202f8ea0/ccdcd1216280410caad11bbd6cb3d4cc/FLAG6c8e88010 [2021-08-30 17:49:36,749 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:49:36,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-30 17:49:36,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3202f8ea0/ccdcd1216280410caad11bbd6cb3d4cc/FLAG6c8e88010 [2021-08-30 17:49:37,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3202f8ea0/ccdcd1216280410caad11bbd6cb3d4cc [2021-08-30 17:49:37,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:49:37,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:49:37,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:37,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:49:37,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:49:37,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:37" (1/1) ... [2021-08-30 17:49:37,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1c0543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:37, skipping insertion in model container [2021-08-30 17:49:37,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:37" (1/1) ... [2021-08-30 17:49:37,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:49:37,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:49:37,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:37,697 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 17:49:37,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3af3e96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:37, skipping insertion in model container [2021-08-30 17:49:37,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:37,698 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:49:37,701 INFO L158 Benchmark]: Toolchain (without parser) took 469.78ms. Allocated memory is still 56.6MB. Free memory was 34.4MB in the beginning and 36.4MB in the end (delta: -2.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-30 17:49:37,702 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:49:37,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.73ms. Allocated memory is still 56.6MB. Free memory was 34.2MB in the beginning and 36.4MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-30 17:49:37,705 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 56.6MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.73ms. Allocated memory is still 56.6MB. Free memory was 34.2MB in the beginning and 36.4MB in the end (delta: -2.2MB). 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 17:49:39,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:49:39,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:49:39,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:49:39,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:49:39,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:49:39,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:49:39,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:49:39,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:49:39,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:49:39,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:49:39,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:49:39,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:49:39,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:49:39,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:49:39,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:49:39,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:49:39,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:49:39,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:49:39,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:49:39,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:49:39,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:49:39,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:49:39,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:49:39,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:49:39,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:49:39,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:49:39,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:49:39,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:49:39,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:49:39,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:49:39,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:49:39,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:49:39,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:49:39,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:49:39,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:49:39,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:49:39,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:49:39,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:49:39,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:49:39,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:49:39,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:49:39,480 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:49:39,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:49:39,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:49:39,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:49:39,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:49:39,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:49:39,484 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:49:39,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:49:39,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:49:39,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:49:39,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:49:39,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:49:39,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:49:39,486 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:49:39,486 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:49:39,495 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:49:39,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:49:39,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:49:39,495 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:49:39,495 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:49:39,496 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:49:39,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:49:39,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:49:39,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:49:39,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:49:39,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:49:39,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:49:39,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:49:39,497 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:49:39,497 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:49:39,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:49:39,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:49:39,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f114a9b30107b01a4872fae9e8e5c20e3a4272 [2021-08-30 17:49:39,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:49:39,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:49:39,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:49:39,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:49:39,843 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:49:39,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-30 17:49:39,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7590d406/b2306f64acdd496d8b2c810d118aa400/FLAG71d2c87a0 [2021-08-30 17:49:40,416 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:49:40,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-30 17:49:40,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7590d406/b2306f64acdd496d8b2c810d118aa400/FLAG71d2c87a0 [2021-08-30 17:49:40,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7590d406/b2306f64acdd496d8b2c810d118aa400 [2021-08-30 17:49:40,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:49:40,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:49:40,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:40,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:49:40,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:49:40,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:40" (1/1) ... [2021-08-30 17:49:40,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1584d3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:40, skipping insertion in model container [2021-08-30 17:49:40,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:40" (1/1) ... [2021-08-30 17:49:40,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:49:40,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:49:41,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:41,074 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:49:41,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:49:41,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:41,118 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:49:41,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:41,215 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:49:41,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41 WrapperNode [2021-08-30 17:49:41,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:41,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:49:41,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:49:41,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:49:41,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:49:41,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:49:41,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:49:41,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:49:41,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (1/1) ... [2021-08-30 17:49:41,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:49:41,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:49:41,378 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 17:49:41,389 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 17:49:41,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:49:41,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:49:41,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:49:41,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:49:41,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:49:41,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:49:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:49:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:49:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:49:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:49:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:49:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:49:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:49:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:49:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:49:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:49:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:49:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:49:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:49:41,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:49:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:49:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:49:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:49:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:49:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:49:41,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:49:41,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:49:41,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:49:41,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:49:41,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:49:41,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:49:41,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:49:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:49:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:49:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:49:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:49:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:49:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:49:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:49:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:49:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:49:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:49:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:49:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:49:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:49:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:49:41,431 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:49:41,431 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:49:41,431 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:49:41,431 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:49:41,431 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:49:41,431 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:49:41,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:49:41,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:49:41,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:49:41,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:49:41,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:49:41,432 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:49:41,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:49:41,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:49:41,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:49:41,433 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:49:41,434 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:49:41,434 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:49:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:49:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:49:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:49:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:49:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:49:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:49:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:49:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:49:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:49:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:49:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:49:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:49:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:49:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:49:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:49:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:49:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:49:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:49:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:49:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:49:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:49:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:49:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:49:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:49:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:49:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:49:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:49:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:49:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:49:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:49:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:49:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:49:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:49:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:49:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:49:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:49:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:49:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:49:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:49:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:49:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:49:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:49:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:49:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:49:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:49:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:49:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:49:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:49:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:49:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:49:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:49:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:49:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:49:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:49:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:49:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:49:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:49:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:49:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:49:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:49:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:49:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:49:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:49:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:49:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:49:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:49:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:49:41,450 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:49:41,451 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:49:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:49:41,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:49:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:49:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:49:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:49:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:49:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:49:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:49:41,460 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:49:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:49:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:49:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:49:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:49:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:49:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:49:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:49:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:49:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:49:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:49:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:49:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:49:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:49:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:49:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:49:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:49:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:49:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:49:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:49:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:49:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:49:41,895 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:49:41,969 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:49:42,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:49:42,037 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-08-30 17:49:42,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:49:42 BoogieIcfgContainer [2021-08-30 17:49:42,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:49:42,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:49:42,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:49:42,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:49:42,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:49:40" (1/3) ... [2021-08-30 17:49:42,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d980e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:49:42, skipping insertion in model container [2021-08-30 17:49:42,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:41" (2/3) ... [2021-08-30 17:49:42,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d980e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:49:42, skipping insertion in model container [2021-08-30 17:49:42,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:49:42" (3/3) ... [2021-08-30 17:49:42,047 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3.i [2021-08-30 17:49:42,051 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:49:42,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 73 error locations. [2021-08-30 17:49:42,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:49:42,093 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 17:49:42,093 INFO L340 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2021-08-30 17:49:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 75 states have internal predecessors, (84), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-08-30 17:49:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:49:42,113 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:42,113 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 17:49:42,114 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:49:42,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:42,118 INFO L82 PathProgramCache]: Analyzing trace with hash -463551614, now seen corresponding path program 1 times [2021-08-30 17:49:42,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:42,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068835314] [2021-08-30 17:49:42,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:42,129 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:42,131 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 17:49:42,156 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 17:49:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:42,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:49:42,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:42,488 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 17:49:42,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:42,599 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 17:49:42,600 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:42,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068835314] [2021-08-30 17:49:42,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068835314] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:42,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:42,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:49:42,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936375381] [2021-08-30 17:49:42,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:49:42,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:42,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:49:42,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:42,644 INFO L87 Difference]: Start difference. First operand has 98 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 75 states have internal predecessors, (84), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:42,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:42,764 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2021-08-30 17:49:42,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:49:42,768 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-30 17:49:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:42,774 INFO L225 Difference]: With dead ends: 41 [2021-08-30 17:49:42,774 INFO L226 Difference]: Without dead ends: 38 [2021-08-30 17:49:42,776 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.68ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:42,783 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.96ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:42,784 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 86 Unknown, 0 Unchecked, 7.18ms Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 88.96ms Time] [2021-08-30 17:49:42,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-30 17:49:42,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2021-08-30 17:49:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:49:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-08-30 17:49:42,825 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2021-08-30 17:49:42,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:42,825 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-08-30 17:49:42,825 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-08-30 17:49:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:49:42,827 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:42,827 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 17:49:42,837 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 17:49:43,035 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 17:49:43,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:49:43,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:43,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1279258721, now seen corresponding path program 1 times [2021-08-30 17:49:43,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:43,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274840810] [2021-08-30 17:49:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:43,039 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:43,040 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 17:49:43,065 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 17:49:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:43,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:49:43,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:43,252 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 17:49:43,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:43,323 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 17:49:43,324 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:43,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274840810] [2021-08-30 17:49:43,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274840810] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:43,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:43,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 17:49:43,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518610097] [2021-08-30 17:49:43,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 17:49:43,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:43,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 17:49:43,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:49:43,327 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:49:43,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:43,416 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2021-08-30 17:49:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 17:49:43,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-08-30 17:49:43,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:43,418 INFO L225 Difference]: With dead ends: 39 [2021-08-30 17:49:43,418 INFO L226 Difference]: Without dead ends: 36 [2021-08-30 17:49:43,418 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:49:43,419 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.91ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.87ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:43,419 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 13 Invalid, 54 Unknown, 0 Unchecked, 0.91ms Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 76.87ms Time] [2021-08-30 17:49:43,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-08-30 17:49:43,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2021-08-30 17:49:43,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 23 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-08-30 17:49:43,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-08-30 17:49:43,425 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 17 [2021-08-30 17:49:43,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:43,425 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-08-30 17:49:43,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:49:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2021-08-30 17:49:43,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-30 17:49:43,426 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:43,426 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:43,437 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 17:49:43,627 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 17:49:43,627 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:49:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:43,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1484698579, now seen corresponding path program 1 times [2021-08-30 17:49:43,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:43,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759085138] [2021-08-30 17:49:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:43,629 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:43,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:43,630 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 17:49:43,632 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 17:49:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:43,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-30 17:49:43,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:43,809 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 17:49:43,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:43,866 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 17:49:43,866 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:43,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759085138] [2021-08-30 17:49:43,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759085138] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:43,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:43,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-30 17:49:43,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366023050] [2021-08-30 17:49:43,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 17:49:43,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:43,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 17:49:43,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:49:43,869 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:49:43,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:43,946 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2021-08-30 17:49:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:49:43,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-08-30 17:49:43,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:43,948 INFO L225 Difference]: With dead ends: 48 [2021-08-30 17:49:43,948 INFO L226 Difference]: Without dead ends: 48 [2021-08-30 17:49:43,948 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 22.03ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:49:43,949 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 30 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.17ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:43,949 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 31 Invalid, 64 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 63.17ms Time] [2021-08-30 17:49:43,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-30 17:49:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2021-08-30 17:49:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 30 states have internal predecessors, (35), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-30 17:49:43,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2021-08-30 17:49:43,957 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 18 [2021-08-30 17:49:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:43,957 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2021-08-30 17:49:43,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:49:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2021-08-30 17:49:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-30 17:49:43,958 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:43,958 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:43,971 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 17:49:44,167 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 17:49:44,168 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:49:44,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:44,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1931315851, now seen corresponding path program 1 times [2021-08-30 17:49:44,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:44,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471590946] [2021-08-30 17:49:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:44,169 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:44,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:44,170 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 17:49:44,172 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 17:49:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:44,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:49:44,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:44,337 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 17:49:44,428 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 17:49:44,428 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 21 treesize of output 26 [2021-08-30 17:49:44,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:44,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:44,629 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:44,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471590946] [2021-08-30 17:49:44,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471590946] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:49:44,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:49:44,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-30 17:49:44,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838336976] [2021-08-30 17:49:44,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:49:44,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:44,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:49:44,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:49:44,631 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:49:44,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:44,747 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2021-08-30 17:49:44,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:49:44,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2021-08-30 17:49:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:44,748 INFO L225 Difference]: With dead ends: 53 [2021-08-30 17:49:44,748 INFO L226 Difference]: Without dead ends: 53 [2021-08-30 17:49:44,749 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.49ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-30 17:49:44,750 INFO L928 BasicCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.44ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 98.52ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:44,750 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 28 Invalid, 140 Unknown, 0 Unchecked, 1.44ms Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 42 Unchecked, 98.52ms Time] [2021-08-30 17:49:44,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-30 17:49:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2021-08-30 17:49:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 37 states have internal predecessors, (45), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-30 17:49:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2021-08-30 17:49:44,757 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 22 [2021-08-30 17:49:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:44,757 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2021-08-30 17:49:44,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:49:44,757 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2021-08-30 17:49:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-30 17:49:44,758 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:44,758 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:44,771 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 17:49:44,967 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 17:49:44,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:49:44,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:44,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1931315850, now seen corresponding path program 1 times [2021-08-30 17:49:44,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:44,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553644964] [2021-08-30 17:49:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:44,968 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:44,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:44,969 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 17:49:45,021 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 17:49:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:45,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-30 17:49:45,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:45,154 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 17:49:45,161 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 17:49:47,446 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:49:47,447 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 32 treesize of output 34 [2021-08-30 17:49:47,475 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:49:47,476 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 26 treesize of output 26 [2021-08-30 17:49:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:47,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:05,086 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 30 treesize of output 28 [2021-08-30 17:50:05,471 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 27 treesize of output 25 [2021-08-30 17:50:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:05,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:05,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553644964] [2021-08-30 17:50:05,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553644964] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:50:05,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:50:05,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-08-30 17:50:05,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630788061] [2021-08-30 17:50:05,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 17:50:05,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:05,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 17:50:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=257, Unknown=6, NotChecked=0, Total=306 [2021-08-30 17:50:05,606 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 18 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 16 states have internal predecessors, (26), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-30 17:50:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:10,252 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2021-08-30 17:50:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 17:50:10,252 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 16 states have internal predecessors, (26), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 22 [2021-08-30 17:50:10,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:10,254 INFO L225 Difference]: With dead ends: 65 [2021-08-30 17:50:10,254 INFO L226 Difference]: Without dead ends: 65 [2021-08-30 17:50:10,254 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 19953.36ms TimeCoverageRelationStatistics Valid=78, Invalid=420, Unknown=8, NotChecked=0, Total=506 [2021-08-30 17:50:10,255 INFO L928 BasicCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 297.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.53ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 215 IncrementalHoareTripleChecker+Unchecked, 337.25ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:10,255 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 70 Invalid, 386 Unknown, 0 Unchecked, 3.53ms Time], IncrementalHoareTripleChecker [9 Valid, 162 Invalid, 0 Unknown, 215 Unchecked, 337.25ms Time] [2021-08-30 17:50:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-08-30 17:50:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2021-08-30 17:50:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 44 states have internal predecessors, (55), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-30 17:50:10,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2021-08-30 17:50:10,265 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 22 [2021-08-30 17:50:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:10,265 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2021-08-30 17:50:10,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 16 states have internal predecessors, (26), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-30 17:50:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2021-08-30 17:50:10,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-30 17:50:10,267 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:10,267 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:10,277 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 17:50:10,467 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 17:50:10,468 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:50:10,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:10,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1930392329, now seen corresponding path program 1 times [2021-08-30 17:50:10,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:10,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625745994] [2021-08-30 17:50:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:10,469 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:10,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:10,470 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 17:50:10,471 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 17:50:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:10,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-30 17:50:10,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:10,601 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 17:50:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:10,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:11,613 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:11,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625745994] [2021-08-30 17:50:11,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625745994] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:50:11,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:50:11,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-08-30 17:50:11,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98789703] [2021-08-30 17:50:11,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-30 17:50:11,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:11,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-30 17:50:11,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-08-30 17:50:11,614 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 14 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-30 17:50:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:12,479 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2021-08-30 17:50:12,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 17:50:12,480 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 22 [2021-08-30 17:50:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:12,481 INFO L225 Difference]: With dead ends: 69 [2021-08-30 17:50:12,481 INFO L226 Difference]: Without dead ends: 69 [2021-08-30 17:50:12,481 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 705.82ms TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-08-30 17:50:12,482 INFO L928 BasicCegarLoop]: 8 mSDtfsCounter, 25 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 513.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.72ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 119 IncrementalHoareTripleChecker+Unchecked, 567.98ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:12,482 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 47 Invalid, 350 Unknown, 0 Unchecked, 3.72ms Time], IncrementalHoareTripleChecker [21 Valid, 210 Invalid, 0 Unknown, 119 Unchecked, 567.98ms Time] [2021-08-30 17:50:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-30 17:50:12,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-08-30 17:50:12,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 48 states have internal predecessors, (58), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (14), 11 states have call predecessors, (14), 8 states have call successors, (14) [2021-08-30 17:50:12,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions. [2021-08-30 17:50:12,486 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 22 [2021-08-30 17:50:12,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:12,487 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 81 transitions. [2021-08-30 17:50:12,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-30 17:50:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions. [2021-08-30 17:50:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-30 17:50:12,487 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:12,487 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:12,499 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 17:50:12,688 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 17:50:12,688 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:50:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:12,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2070248438, now seen corresponding path program 1 times [2021-08-30 17:50:12,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:12,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114030356] [2021-08-30 17:50:12,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:12,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:12,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:12,690 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 17:50:12,692 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 17:50:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:12,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:50:12,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:50:12,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:12,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:50:12,966 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:12,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114030356] [2021-08-30 17:50:12,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114030356] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-30 17:50:12,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 17:50:12,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-30 17:50:12,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228933621] [2021-08-30 17:50:12,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:50:12,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:50:12,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:50:12,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:12,967 INFO L87 Difference]: Start difference. First operand 67 states and 81 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:50:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:50:13,079 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2021-08-30 17:50:13,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:50:13,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-08-30 17:50:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:50:13,082 INFO L225 Difference]: With dead ends: 51 [2021-08-30 17:50:13,082 INFO L226 Difference]: Without dead ends: 47 [2021-08-30 17:50:13,082 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.00ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:50:13,083 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.76ms IncrementalHoareTripleChecker+Time [2021-08-30 17:50:13,083 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 73 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 106.76ms Time] [2021-08-30 17:50:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-30 17:50:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-08-30 17:50:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-30 17:50:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2021-08-30 17:50:13,088 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 22 [2021-08-30 17:50:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:50:13,088 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2021-08-30 17:50:13,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:50:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2021-08-30 17:50:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-30 17:50:13,089 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:50:13,089 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:50:13,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-30 17:50:13,290 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 17:50:13,290 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-30 17:50:13,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:50:13,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1415631372, now seen corresponding path program 1 times [2021-08-30 17:50:13,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:50:13,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836968443] [2021-08-30 17:50:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:13,291 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:50:13,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:50:13,292 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 17:50:13,293 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 17:50:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:13,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-30 17:50:13,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:13,430 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 17:50:13,437 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 17:50:15,668 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:50:15,669 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 36 treesize of output 38 [2021-08-30 17:50:15,676 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:50:15,677 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 30 treesize of output 30 [2021-08-30 17:50:15,863 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:50:15,863 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 33 treesize of output 35 [2021-08-30 17:50:15,871 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:50:15,872 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 27 treesize of output 27 [2021-08-30 17:50:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:50:15,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:22,927 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~array~0.base_BEFORE_CALL_9 (_ BitVec 32)) (|v_ldv_malloc_#res.base_58| (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_7 (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_7 (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_57| (_ BitVec 32))) (and (or (exists ((v_ldv_malloc_~size_53 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_7 (bvmul v_entry_point_~i~0_BEFORE_CALL_7 (_ bv4 32))) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_57| v_ldv_malloc_~size_53) v_entry_point_~array~0.base_BEFORE_CALL_9)))) (not (let ((.cse0 (bvmul v_entry_point_~i~0_BEFORE_CALL_7 (_ bv4 32)))) (bvule (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_7 .cse0) (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_7 .cse0))))) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_57|)))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_7 (bvmul v_entry_point_~i~0_BEFORE_CALL_7 (_ bv4 32))) (select (store |c_#length| |v_ldv_malloc_#res.base_58| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_9))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_7 (_ bv4 32)))) (bvule (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_7 .cse1) (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_7 .cse1)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_58|)))))) is different from false [2021-08-30 17:50:26,417 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:50:26,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836968443] [2021-08-30 17:50:26,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:50:26,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1696192025] [2021-08-30 17:50:26,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:26,419 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-30 17:50:26,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-30 17:50:26,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-30 17:50:26,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-08-30 17:50:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:26,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-30 17:50:26,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:26,640 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 17:50:26,644 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 17:50:26,780 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:50:26,780 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 36 treesize of output 38 [2021-08-30 17:50:26,789 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:50:26,789 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 30 treesize of output 30 [2021-08-30 17:50:26,957 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:50:26,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2021-08-30 17:50:26,969 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:50:26,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-08-30 17:50:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:50:26,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:50:47,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:50:47,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298871098] [2021-08-30 17:50:47,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:50:47,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 17:50:47,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:50:47,472 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 17:50:47,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-30 17:50:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:50:47,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-30 17:50:47,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:50:47,627 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 17:50:47,632 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 17:50:47,763 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:50:47,763 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 32 treesize of output 34 [2021-08-30 17:50:47,771 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:50:47,771 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 26 treesize of output 26 [2021-08-30 17:50:47,887 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:50:47,888 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 33 treesize of output 35 [2021-08-30 17:50:47,895 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:50:47,896 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 27 treesize of output 27 [2021-08-30 17:50:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:50:47,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:51:24,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-30 17:51:24,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:51:24,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-30 17:51:24,778 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-30 17:51:24,778 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-08-30 17:51:24,781 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION (72 of 73 remaining) [2021-08-30 17:51:24,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (71 of 73 remaining) [2021-08-30 17:51:24,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (70 of 73 remaining) [2021-08-30 17:51:24,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (69 of 73 remaining) [2021-08-30 17:51:24,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (68 of 73 remaining) [2021-08-30 17:51:24,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (67 of 73 remaining) [2021-08-30 17:51:24,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (66 of 73 remaining) [2021-08-30 17:51:24,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (65 of 73 remaining) [2021-08-30 17:51:24,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (64 of 73 remaining) [2021-08-30 17:51:24,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (63 of 73 remaining) [2021-08-30 17:51:24,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (62 of 73 remaining) [2021-08-30 17:51:24,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (61 of 73 remaining) [2021-08-30 17:51:24,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (60 of 73 remaining) [2021-08-30 17:51:24,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (59 of 73 remaining) [2021-08-30 17:51:24,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (58 of 73 remaining) [2021-08-30 17:51:24,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (57 of 73 remaining) [2021-08-30 17:51:24,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (56 of 73 remaining) [2021-08-30 17:51:24,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (55 of 73 remaining) [2021-08-30 17:51:24,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (54 of 73 remaining) [2021-08-30 17:51:24,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (53 of 73 remaining) [2021-08-30 17:51:24,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (52 of 73 remaining) [2021-08-30 17:51:24,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (51 of 73 remaining) [2021-08-30 17:51:24,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (50 of 73 remaining) [2021-08-30 17:51:24,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (49 of 73 remaining) [2021-08-30 17:51:24,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (48 of 73 remaining) [2021-08-30 17:51:24,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (47 of 73 remaining) [2021-08-30 17:51:24,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (46 of 73 remaining) [2021-08-30 17:51:24,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (45 of 73 remaining) [2021-08-30 17:51:24,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (44 of 73 remaining) [2021-08-30 17:51:24,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (43 of 73 remaining) [2021-08-30 17:51:24,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (42 of 73 remaining) [2021-08-30 17:51:24,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (41 of 73 remaining) [2021-08-30 17:51:24,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (40 of 73 remaining) [2021-08-30 17:51:24,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (39 of 73 remaining) [2021-08-30 17:51:24,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (38 of 73 remaining) [2021-08-30 17:51:24,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (37 of 73 remaining) [2021-08-30 17:51:24,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (36 of 73 remaining) [2021-08-30 17:51:24,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (35 of 73 remaining) [2021-08-30 17:51:24,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (34 of 73 remaining) [2021-08-30 17:51:24,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (33 of 73 remaining) [2021-08-30 17:51:24,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (32 of 73 remaining) [2021-08-30 17:51:24,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (31 of 73 remaining) [2021-08-30 17:51:24,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (30 of 73 remaining) [2021-08-30 17:51:24,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (29 of 73 remaining) [2021-08-30 17:51:24,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (28 of 73 remaining) [2021-08-30 17:51:24,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (27 of 73 remaining) [2021-08-30 17:51:24,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (26 of 73 remaining) [2021-08-30 17:51:24,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (25 of 73 remaining) [2021-08-30 17:51:24,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (24 of 73 remaining) [2021-08-30 17:51:24,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (23 of 73 remaining) [2021-08-30 17:51:24,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (22 of 73 remaining) [2021-08-30 17:51:24,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (21 of 73 remaining) [2021-08-30 17:51:24,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (20 of 73 remaining) [2021-08-30 17:51:24,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (19 of 73 remaining) [2021-08-30 17:51:24,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (18 of 73 remaining) [2021-08-30 17:51:24,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (17 of 73 remaining) [2021-08-30 17:51:24,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (16 of 73 remaining) [2021-08-30 17:51:24,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (15 of 73 remaining) [2021-08-30 17:51:24,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (14 of 73 remaining) [2021-08-30 17:51:24,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (13 of 73 remaining) [2021-08-30 17:51:24,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (12 of 73 remaining) [2021-08-30 17:51:24,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (11 of 73 remaining) [2021-08-30 17:51:24,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (10 of 73 remaining) [2021-08-30 17:51:24,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (9 of 73 remaining) [2021-08-30 17:51:24,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (8 of 73 remaining) [2021-08-30 17:51:24,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (7 of 73 remaining) [2021-08-30 17:51:24,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (6 of 73 remaining) [2021-08-30 17:51:24,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (5 of 73 remaining) [2021-08-30 17:51:24,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (4 of 73 remaining) [2021-08-30 17:51:24,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (3 of 73 remaining) [2021-08-30 17:51:24,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (2 of 73 remaining) [2021-08-30 17:51:24,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (1 of 73 remaining) [2021-08-30 17:51:24,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION (0 of 73 remaining) [2021-08-30 17:51:24,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-30 17:51:25,027 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 17:51:25,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-08-30 17:51:25,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-30 17:51:25,426 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:51:25,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:51:25 BoogieIcfgContainer [2021-08-30 17:51:25,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:51:25,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:51:25,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:51:25,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:51:25,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:49:42" (3/4) ... [2021-08-30 17:51:25,441 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:51:25,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:51:25,441 INFO L158 Benchmark]: Toolchain (without parser) took 104720.80ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 43.3MB in the beginning and 48.2MB in the end (delta: -5.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2021-08-30 17:51:25,441 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:51:25,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.21ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 29.7MB in the end (delta: 13.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-08-30 17:51:25,442 INFO L158 Benchmark]: Boogie Preprocessor took 129.29ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 44.5MB in the end (delta: -14.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-08-30 17:51:25,442 INFO L158 Benchmark]: RCFGBuilder took 692.32ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 44.5MB in the beginning and 48.0MB in the end (delta: -3.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-08-30 17:51:25,442 INFO L158 Benchmark]: TraceAbstraction took 103396.51ms. Allocated memory is still 86.0MB. Free memory was 47.6MB in the beginning and 48.2MB in the end (delta: -633.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:51:25,445 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 86.0MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:51:25,445 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 46.5MB in the beginning and 46.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.21ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 29.7MB in the end (delta: 13.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.29ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 44.5MB in the end (delta: -14.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * RCFGBuilder took 692.32ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 44.5MB in the beginning and 48.0MB in the end (delta: -3.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 103396.51ms. Allocated memory is still 86.0MB. Free memory was 47.6MB in the beginning and 48.2MB in the end (delta: -633.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 86.0MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L773] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] COND FALSE !(!array) [L766] COND TRUE i