./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 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_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-dev-20ed64e [2021-08-27 06:15:43,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:15:43,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:15:43,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:15:43,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:15:43,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:15:43,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:15:43,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:15:43,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:15:43,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:15:43,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:15:43,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:15:43,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:15:43,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:15:43,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:15:43,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:15:43,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:15:43,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:15:43,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:15:43,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:15:43,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:15:43,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:15:43,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:15:43,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:15:43,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:15:43,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:15:43,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:15:43,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:15:43,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:15:43,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:15:43,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:15:43,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:15:43,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:15:43,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:15:43,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:15:43,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:15:43,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:15:43,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:15:43,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:15:43,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:15:43,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:15:43,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:15:43,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:15:43,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:15:43,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:15:43,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:15:43,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:15:43,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:15:43,461 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:15:43,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:15:43,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:15:43,462 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:15:43,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:15:43,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:15:43,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:15:43,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:15:43,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:15:43,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:15:43,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:15:43,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:15:43,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:15:43,463 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f114a9b30107b01a4872fae9e8e5c20e3a4272 [2021-08-27 06:15:43,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:15:43,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:15:43,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:15:43,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:15:43,717 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:15:43,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-27 06:15:43,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19801fcb/9cb5e97416844d528e8143f765259681/FLAGb337ca1e2 [2021-08-27 06:15:44,224 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:15:44,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-27 06:15:44,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19801fcb/9cb5e97416844d528e8143f765259681/FLAGb337ca1e2 [2021-08-27 06:15:44,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19801fcb/9cb5e97416844d528e8143f765259681 [2021-08-27 06:15:44,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:15:44,255 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:15:44,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:15:44,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:15:44,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:15:44,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:44" (1/1) ... [2021-08-27 06:15:44,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e17c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:44, skipping insertion in model container [2021-08-27 06:15:44,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:44" (1/1) ... [2021-08-27 06:15:44,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:15:44,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:15:44,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:15:44,585 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:15:44,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@261f0c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:44, skipping insertion in model container [2021-08-27 06:15:44,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:15:44,586 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:15:44,587 INFO L168 Benchmark]: Toolchain (without parser) took 331.94 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 43.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:15:44,588 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:15:44,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.66 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 43.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:15:44,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.66 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 43.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:15:45,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:15:45,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:15:46,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:15:46,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:15:46,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:15:46,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:15:46,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:15:46,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:15:46,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:15:46,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:15:46,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:15:46,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:15:46,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:15:46,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:15:46,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:15:46,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:15:46,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:15:46,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:15:46,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:15:46,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:15:46,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:15:46,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:15:46,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:15:46,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:15:46,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:15:46,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:15:46,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:15:46,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:15:46,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:15:46,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:15:46,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:15:46,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:15:46,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:15:46,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:15:46,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:15:46,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:15:46,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:15:46,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:15:46,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:15:46,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:15:46,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:15:46,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:15:46,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:15:46,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:15:46,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:15:46,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:15:46,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:15:46,091 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:15:46,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:15:46,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:15:46,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:15:46,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:15:46,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:15:46,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:15:46,092 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:15:46,092 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:15:46,092 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:15:46,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:15:46,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:15:46,096 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:15:46,096 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:15:46,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:15:46,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:15:46,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:15:46,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:15:46,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:15:46,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:15:46,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:15:46,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:15:46,097 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:15:46,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:15:46,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:15:46,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:15:46,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f114a9b30107b01a4872fae9e8e5c20e3a4272 [2021-08-27 06:15:46,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:15:46,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:15:46,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:15:46,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:15:46,360 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:15:46,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-27 06:15:46,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d253a5084/38f3bf92d8fd437abe8b88f99357e6d8/FLAGf4d03ac63 [2021-08-27 06:15:46,768 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:15:46,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3.i [2021-08-27 06:15:46,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d253a5084/38f3bf92d8fd437abe8b88f99357e6d8/FLAGf4d03ac63 [2021-08-27 06:15:47,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d253a5084/38f3bf92d8fd437abe8b88f99357e6d8 [2021-08-27 06:15:47,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:15:47,163 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:15:47,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:15:47,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:15:47,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:15:47,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7339fc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47, skipping insertion in model container [2021-08-27 06:15:47,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:15:47,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:15:47,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:15:47,463 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:15:47,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:15:47,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:15:47,498 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:15:47,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:15:47,562 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:15:47,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47 WrapperNode [2021-08-27 06:15:47,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:15:47,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:15:47,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:15:47,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:15:47,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:15:47,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:15:47,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:15:47,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:15:47,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (1/1) ... [2021-08-27 06:15:47,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:15:47,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:15:47,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:15:47,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:15:47,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:15:47,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:15:47,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:15:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:15:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:15:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:15:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:15:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:15:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:15:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:15:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:15:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:15:47,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:15:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:15:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:15:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:15:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:15:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:15:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:15:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:15:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:15:47,699 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:15:47,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:15:47,701 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:15:47,702 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:15:47,703 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:15:47,704 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:15:47,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:15:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:15:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:15:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:15:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:15:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:15:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:15:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:15:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:15:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:15:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:15:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:15:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:15:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:15:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:15:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:15:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:15:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:15:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:15:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:15:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:15:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:15:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:15:48,159 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:15:48,419 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:15:48,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:15:48,595 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-08-27 06:15:48,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:48 BoogieIcfgContainer [2021-08-27 06:15:48,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:15:48,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:15:48,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:15:48,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:15:48,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:15:47" (1/3) ... [2021-08-27 06:15:48,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfdc7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:48, skipping insertion in model container [2021-08-27 06:15:48,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:15:47" (2/3) ... [2021-08-27 06:15:48,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfdc7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:15:48, skipping insertion in model container [2021-08-27 06:15:48,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:48" (3/3) ... [2021-08-27 06:15:48,602 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3.i [2021-08-27 06:15:48,606 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:15:48,606 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 73 error locations. [2021-08-27 06:15:48,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:15:48,641 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:15:48,641 INFO L340 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2021-08-27 06:15:48,653 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) [2021-08-27 06:15:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:15:48,669 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:15:48,670 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:15:48,670 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)] === [2021-08-27 06:15:48,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:15:48,674 INFO L82 PathProgramCache]: Analyzing trace with hash -463551614, now seen corresponding path program 1 times [2021-08-27 06:15:48,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:15:48,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007158105] [2021-08-27 06:15:48,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:15:48,684 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:15:48,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:15:48,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:15:48,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:15:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:15:48,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:15:48,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:15:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:48,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:15:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:49,066 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:15:49,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007158105] [2021-08-27 06:15:49,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007158105] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:15:49,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:15:49,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:15:49,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673495228] [2021-08-27 06:15:49,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:15:49,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:15:49,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:15:49,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:15:49,089 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) [2021-08-27 06:15:49,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:15:49,144 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2021-08-27 06:15:49,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:15:49,145 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 [2021-08-27 06:15:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:15:49,151 INFO L225 Difference]: With dead ends: 41 [2021-08-27 06:15:49,151 INFO L226 Difference]: Without dead ends: 38 [2021-08-27 06:15:49,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:15:49,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-27 06:15:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2021-08-27 06:15:49,175 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) [2021-08-27 06:15:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-08-27 06:15:49,176 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2021-08-27 06:15:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:15:49,177 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-08-27 06:15:49,177 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) [2021-08-27 06:15:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-08-27 06:15:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:15:49,178 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:15:49,178 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:15:49,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:15:49,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:15:49,385 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)] === [2021-08-27 06:15:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:15:49,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1279258721, now seen corresponding path program 1 times [2021-08-27 06:15:49,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:15:49,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109215175] [2021-08-27 06:15:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:15:49,386 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:15:49,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:15:49,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:15:49,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:15:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:15:49,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:15:49,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:15:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:49,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:15:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:49,674 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:15:49,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109215175] [2021-08-27 06:15:49,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109215175] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:15:49,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:15:49,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:15:49,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125527435] [2021-08-27 06:15:49,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:15:49,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:15:49,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:15:49,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:15:49,677 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) [2021-08-27 06:15:49,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:15:49,714 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2021-08-27 06:15:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:15:49,714 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 [2021-08-27 06:15:49,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:15:49,715 INFO L225 Difference]: With dead ends: 39 [2021-08-27 06:15:49,716 INFO L226 Difference]: Without dead ends: 36 [2021-08-27 06:15:49,716 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:15:49,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-08-27 06:15:49,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2021-08-27 06:15:49,723 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) [2021-08-27 06:15:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2021-08-27 06:15:49,725 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 17 [2021-08-27 06:15:49,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:15:49,725 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-08-27 06:15:49,725 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) [2021-08-27 06:15:49,725 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2021-08-27 06:15:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:15:49,727 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:15:49,727 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:15:49,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:15:49,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:15:49,938 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)] === [2021-08-27 06:15:49,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:15:49,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1484698579, now seen corresponding path program 1 times [2021-08-27 06:15:49,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:15:49,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506770255] [2021-08-27 06:15:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:15:49,939 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:15:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:15:49,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:15:49,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:15:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:15:50,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:15:50,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:15:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:50,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:15:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:50,230 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:15:50,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506770255] [2021-08-27 06:15:50,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506770255] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:15:50,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:15:50,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:15:50,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378642033] [2021-08-27 06:15:50,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:15:50,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:15:50,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:15:50,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:15:50,232 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) [2021-08-27 06:15:50,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:15:50,289 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2021-08-27 06:15:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:15:50,290 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 [2021-08-27 06:15:50,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:15:50,291 INFO L225 Difference]: With dead ends: 48 [2021-08-27 06:15:50,291 INFO L226 Difference]: Without dead ends: 48 [2021-08-27 06:15:50,292 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.6ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:15:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-27 06:15:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2021-08-27 06:15:50,300 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) [2021-08-27 06:15:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2021-08-27 06:15:50,302 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 18 [2021-08-27 06:15:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:15:50,303 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2021-08-27 06:15:50,303 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) [2021-08-27 06:15:50,303 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2021-08-27 06:15:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:15:50,306 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:15:50,306 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:15:50,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:15:50,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:15:50,515 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)] === [2021-08-27 06:15:50,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:15:50,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1931315851, now seen corresponding path program 1 times [2021-08-27 06:15:50,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:15:50,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774067612] [2021-08-27 06:15:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:15:50,516 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:15:50,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:15:50,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:15:50,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:15:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:15:50,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:15:50,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:15:50,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:15:50,823 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:15:50,824 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 [2021-08-27 06:15:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:50,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:15:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:51,062 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:15:51,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774067612] [2021-08-27 06:15:51,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774067612] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:15:51,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:15:51,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-27 06:15:51,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686040539] [2021-08-27 06:15:51,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:15:51,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:15:51,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:15:51,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:15:51,064 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) [2021-08-27 06:15:51,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:15:51,365 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2021-08-27 06:15:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 06:15:51,366 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 [2021-08-27 06:15:51,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:15:51,367 INFO L225 Difference]: With dead ends: 68 [2021-08-27 06:15:51,367 INFO L226 Difference]: Without dead ends: 68 [2021-08-27 06:15:51,367 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 153.0ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:15:51,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-08-27 06:15:51,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2021-08-27 06:15:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-27 06:15:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2021-08-27 06:15:51,371 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 64 transitions. Word has length 22 [2021-08-27 06:15:51,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:15:51,371 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 64 transitions. [2021-08-27 06:15:51,371 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) [2021-08-27 06:15:51,372 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2021-08-27 06:15:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:15:51,372 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:15:51,372 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:15:51,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:15:51,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:15:51,573 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)] === [2021-08-27 06:15:51,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:15:51,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1931315850, now seen corresponding path program 1 times [2021-08-27 06:15:51,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:15:51,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024866400] [2021-08-27 06:15:51,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:15:51,573 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:15:51,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:15:51,576 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:15:51,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:15:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:15:51,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:15:51,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:15:51,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:15:51,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:15:54,041 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:15:54,041 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 [2021-08-27 06:15:54,051 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:15:54,051 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 [2021-08-27 06:15:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:54,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:16:11,068 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 [2021-08-27 06:16:11,471 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 [2021-08-27 06:16:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:16:11,614 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:16:11,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024866400] [2021-08-27 06:16:11,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024866400] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:16:11,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:16:11,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-08-27 06:16:11,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952026347] [2021-08-27 06:16:11,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:16:11,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:16:11,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:16:11,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=256, Unknown=7, NotChecked=0, Total=306 [2021-08-27 06:16:11,616 INFO L87 Difference]: Start difference. First operand 50 states and 64 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) [2021-08-27 06:17:58,415 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (forall ((|v_ldv_malloc_#res.base_34| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_31 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_34| v_ldv_malloc_~size_31) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_34|)))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base))))) is different from false [2021-08-27 06:18:27,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:27,039 INFO L93 Difference]: Finished difference Result 82 states and 103 transitions. [2021-08-27 06:18:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:18:27,040 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 [2021-08-27 06:18:27,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:27,041 INFO L225 Difference]: With dead ends: 82 [2021-08-27 06:18:27,041 INFO L226 Difference]: Without dead ends: 82 [2021-08-27 06:18:27,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 51259.7ms TimeCoverageRelationStatistics Valid=136, Invalid=662, Unknown=18, NotChecked=54, Total=870 [2021-08-27 06:18:27,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-08-27 06:18:27,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 60. [2021-08-27 06:18:27,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 43 states have internal predecessors, (51), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (16), 11 states have call predecessors, (16), 9 states have call successors, (16) [2021-08-27 06:18:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2021-08-27 06:18:27,046 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 22 [2021-08-27 06:18:27,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:27,046 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2021-08-27 06:18:27,046 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) [2021-08-27 06:18:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2021-08-27 06:18:27,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:18:27,047 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:27,047 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:27,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-08-27 06:18:27,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:27,254 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-27 06:18:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:27,254 INFO L82 PathProgramCache]: Analyzing trace with hash 2070248438, now seen corresponding path program 1 times [2021-08-27 06:18:27,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:27,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524657663] [2021-08-27 06:18:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:27,255 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:27,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:27,256 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:27,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:18:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:27,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:18:27,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:27,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:27,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:18:27,683 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:27,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524657663] [2021-08-27 06:18:27,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524657663] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:18:27,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:18:27,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-27 06:18:27,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169434439] [2021-08-27 06:18:27,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:27,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:27,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:27,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:27,684 INFO L87 Difference]: Start difference. First operand 60 states and 77 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) [2021-08-27 06:18:27,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:27,714 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2021-08-27 06:18:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:27,715 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 [2021-08-27 06:18:27,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:27,716 INFO L225 Difference]: With dead ends: 46 [2021-08-27 06:18:27,716 INFO L226 Difference]: Without dead ends: 42 [2021-08-27 06:18:27,716 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:27,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-27 06:18:27,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-27 06:18:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 29 states have internal predecessors, (31), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2021-08-27 06:18:27,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2021-08-27 06:18:27,719 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 22 [2021-08-27 06:18:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:27,719 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2021-08-27 06:18:27,719 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) [2021-08-27 06:18:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2021-08-27 06:18:27,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-27 06:18:27,719 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:27,720 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:27,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:27,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:27,920 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-27 06:18:27,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:27,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1416554893, now seen corresponding path program 1 times [2021-08-27 06:18:27,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:27,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072801742] [2021-08-27 06:18:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:27,921 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:27,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:27,922 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:27,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:18:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:28,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 06:18:28,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:28,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:18:28,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:18:30,533 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:18:30,534 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 [2021-08-27 06:18:30,545 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:18:30,545 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 [2021-08-27 06:18:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:32,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:56,736 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 31 treesize of output 29 [2021-08-27 06:18:57,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2021-08-27 06:18:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:57,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:57,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072801742] [2021-08-27 06:18:57,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072801742] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:57,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:57,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-08-27 06:18:57,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853107282] [2021-08-27 06:18:57,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-27 06:18:57,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-27 06:18:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=394, Unknown=10, NotChecked=0, Total=462 [2021-08-27 06:18:57,507 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 22 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 20 states have internal predecessors, (40), 7 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:20:14,701 WARN L207 SmtUtils]: Spent 8.34 s on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2021-08-27 06:21:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:21:16,032 INFO L93 Difference]: Finished difference Result 95 states and 120 transitions. [2021-08-27 06:21:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 06:21:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 20 states have internal predecessors, (40), 7 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 31 [2021-08-27 06:21:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:21:16,034 INFO L225 Difference]: With dead ends: 95 [2021-08-27 06:21:16,035 INFO L226 Difference]: Without dead ends: 95 [2021-08-27 06:21:16,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 64366.3ms TimeCoverageRelationStatistics Valid=189, Invalid=1051, Unknown=20, NotChecked=0, Total=1260 [2021-08-27 06:21:16,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-08-27 06:21:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2021-08-27 06:21:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2021-08-27 06:21:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 77 transitions. [2021-08-27 06:21:16,041 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 77 transitions. Word has length 31 [2021-08-27 06:21:16,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:21:16,041 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 77 transitions. [2021-08-27 06:21:16,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 20 states have internal predecessors, (40), 7 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:21:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2021-08-27 06:21:16,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-27 06:21:16,042 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:21:16,043 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:21:16,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-27 06:21:16,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:21:16,249 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-27 06:21:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:21:16,249 INFO L82 PathProgramCache]: Analyzing trace with hash -407669523, now seen corresponding path program 1 times [2021-08-27 06:21:16,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:21:16,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936636268] [2021-08-27 06:21:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:16,250 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:21:16,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:21:16,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:21:16,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:21:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:21:16,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:21:16,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:21:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 06:21:16,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:21:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 06:21:16,946 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:21:16,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936636268] [2021-08-27 06:21:16,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936636268] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:21:16,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:21:16,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 06:21:16,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190510549] [2021-08-27 06:21:16,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:21:16,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:21:16,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:21:16,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:21:16,947 INFO L87 Difference]: Start difference. First operand 59 states and 77 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:21:17,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:21:17,164 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2021-08-27 06:21:17,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:21:17,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) Word has length 36 [2021-08-27 06:21:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:21:17,165 INFO L225 Difference]: With dead ends: 83 [2021-08-27 06:21:17,165 INFO L226 Difference]: Without dead ends: 83 [2021-08-27 06:21:17,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:21:17,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-08-27 06:21:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2021-08-27 06:21:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.1166666666666667) internal successors, (67), 58 states have internal predecessors, (67), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (23), 16 states have call predecessors, (23), 13 states have call successors, (23) [2021-08-27 06:21:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2021-08-27 06:21:17,171 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 36 [2021-08-27 06:21:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:21:17,172 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2021-08-27 06:21:17,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:21:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2021-08-27 06:21:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-27 06:21:17,173 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:21:17,173 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:21:17,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:21:17,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:21:17,381 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 69 more)] === [2021-08-27 06:21:17,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:21:17,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1571668426, now seen corresponding path program 1 times [2021-08-27 06:21:17,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:21:17,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201689373] [2021-08-27 06:21:17,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:17,382 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:21:17,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:21:17,382 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:21:17,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:21:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:21:17,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 06:21:17,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:21:17,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:21:17,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:21:20,045 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:21:20,045 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 [2021-08-27 06:21:20,060 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:21:20,060 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 [2021-08-27 06:21:20,338 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:21:20,338 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 35 treesize of output 37 [2021-08-27 06:21:20,355 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:21:20,355 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 29 treesize of output 29 [2021-08-27 06:21:20,618 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:21:20,618 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 [2021-08-27 06:21:20,630 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:21:20,631 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 [2021-08-27 06:21:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 06:21:20,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:21:30,900 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:21:30,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201689373] [2021-08-27 06:21:30,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:21:30,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1160954034] [2021-08-27 06:21:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:30,901 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:21:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:21:30,902 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:21:30,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-08-27 06:21:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:21:31,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 06:21:31,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:21:31,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:21:31,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:21:31,590 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:21:31,591 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 [2021-08-27 06:21:31,602 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:21:31,602 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 [2021-08-27 06:21:31,793 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:21:31,794 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 [2021-08-27 06:21:31,808 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:21:31,808 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 [2021-08-27 06:21:31,983 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:21:31,984 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 [2021-08-27 06:21:31,995 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:21:31,995 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 [2021-08-27 06:21:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 06:21:32,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:06,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:22:06,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875023746] [2021-08-27 06:22:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:22:06,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:22:06,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:22:06,611 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:22:06,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-27 06:22:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:07,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 06:22:07,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:07,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:22:07,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:22:07,347 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:22:07,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2021-08-27 06:22:07,367 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:22:07,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-08-27 06:22:07,626 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:22:07,627 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 [2021-08-27 06:22:07,650 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:22:07,650 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 [2021-08-27 06:22:07,948 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:22:07,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2021-08-27 06:22:07,972 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:22:07,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-08-27 06:22:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 06:22:08,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:32,660 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~i~0_BEFORE_CALL_22 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_20 (_ BitVec 32)) (|v_ldv_malloc_#res.base_88| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_18 (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_79| (_ BitVec 32))) (and (or (exists ((v_ldv_malloc_~size_75 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_18 (bvmul v_entry_point_~i~0_BEFORE_CALL_22 (_ bv4 32))) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_79| v_ldv_malloc_~size_75) v_entry_point_~array~0.base_BEFORE_CALL_20)))) (not (let ((.cse0 (bvmul v_entry_point_~i~0_BEFORE_CALL_22 (_ bv4 32)))) (bvule (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_18 .cse0) (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_18 .cse0))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_79|)))))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_88|)))) (and (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_22 (_ bv4 32)))) (bvule (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_18 .cse1) (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_18 .cse1))) (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_entry_point_~array~0.offset_BEFORE_CALL_18 (bvmul v_entry_point_~i~0_BEFORE_CALL_22 (_ bv4 32))) (select (store |c_#length| |v_ldv_malloc_#res.base_88| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_20)))))) is different from false [2021-08-27 06:22:34,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:22:34,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:22:34,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:22:34,319 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:22:34,319 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:22:34,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:22:34,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:22:34,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:22:34,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:22:34,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:22:34,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:34,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:34,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:22:34,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:22:34,937 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:22:34,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:22:34 BoogieIcfgContainer [2021-08-27 06:22:34,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:22:34,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:22:34,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:22:34,946 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:22:34,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:15:48" (3/4) ... [2021-08-27 06:22:34,950 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:22:34,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:22:34,950 INFO L168 Benchmark]: Toolchain (without parser) took 407787.44 ms. Allocated memory was 54.5 MB in the beginning and 144.7 MB in the end (delta: 90.2 MB). Free memory was 31.9 MB in the beginning and 84.7 MB in the end (delta: -52.8 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:22:34,951 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:22:34,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.95 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.7 MB in the beginning and 33.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:22:34,951 INFO L168 Benchmark]: Boogie Preprocessor took 83.11 ms. Allocated memory is still 67.1 MB. Free memory was 33.0 MB in the beginning and 46.4 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:22:34,951 INFO L168 Benchmark]: RCFGBuilder took 949.70 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.2 MB in the beginning and 35.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:22:34,952 INFO L168 Benchmark]: TraceAbstraction took 406347.17 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 34.7 MB in the beginning and 84.7 MB in the end (delta: -50.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:22:34,952 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 144.7 MB. Free memory is still 84.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:22:34,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.95 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.7 MB in the beginning and 33.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.11 ms. Allocated memory is still 67.1 MB. Free memory was 33.0 MB in the beginning and 46.4 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 949.70 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.2 MB in the beginning and 35.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 406347.17 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 34.7 MB in the beginning and 84.7 MB in the end (delta: -50.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.23 ms. Allocated memory is still 144.7 MB. Free memory is still 84.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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