./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb53649e57c73811eb036860baf1102917fa8259 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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_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb53649e57c73811eb036860baf1102917fa8259 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Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:49:22,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:49:22,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:49:22,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:49:22,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:49:22,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:49:22,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:49:22,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:49:22,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:49:22,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:49:22,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:49:22,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:49:22,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:49:22,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:49:22,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:49:22,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:49:22,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:49:22,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:49:22,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:49:22,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:49:22,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:49:22,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:49:22,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:49:22,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:49:22,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:49:22,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:49:22,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:49:22,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:49:22,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:49:22,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:49:22,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:49:22,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:49:22,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:49:22,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:49:22,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:49:22,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:49:22,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:49:22,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:49:22,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:49:22,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:49:22,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:49:22,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:49:22,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:49:22,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:49:22,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:49:22,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:49:22,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:49:22,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:49:22,929 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:49:22,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:49:22,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:49:22,929 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:49:22,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:49:22,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:49:22,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:49:22,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:49:22,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:49:22,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:49:22,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:49:22,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:49:22,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:49:22,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:49:22,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb53649e57c73811eb036860baf1102917fa8259 [2021-08-30 17:49:23,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:49:23,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:49:23,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:49:23,349 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:49:23,350 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:49:23,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-30 17:49:23,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7108b673/3bd5e4ae4db24e1fb61b2acdf9cb22ef/FLAG2aa086956 [2021-08-30 17:49:23,876 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:49:23,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-30 17:49:23,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7108b673/3bd5e4ae4db24e1fb61b2acdf9cb22ef/FLAG2aa086956 [2021-08-30 17:49:24,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7108b673/3bd5e4ae4db24e1fb61b2acdf9cb22ef [2021-08-30 17:49:24,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:49:24,210 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:49:24,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:24,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:49:24,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:49:24,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:24" (1/1) ... [2021-08-30 17:49:24,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164f1b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:24, skipping insertion in model container [2021-08-30 17:49:24,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:24" (1/1) ... [2021-08-30 17:49:24,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:49:24,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:49:24,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:24,491 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-30 17:49:24,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1082a6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:24, skipping insertion in model container [2021-08-30 17:49:24,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:24,492 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-30 17:49:24,493 INFO L158 Benchmark]: Toolchain (without parser) took 283.23ms. Allocated memory is still 60.8MB. Free memory was 44.3MB in the beginning and 42.3MB in the end (delta: 2.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 17:49:24,494 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:49:24,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.09ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.3MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 17:49:24,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.09ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.3MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:49:26,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:49:26,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:49:26,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:49:26,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:49:26,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:49:26,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:49:26,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:49:26,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:49:26,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:49:26,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:49:26,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:49:26,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:49:26,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:49:26,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:49:26,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:49:26,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:49:26,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:49:26,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:49:26,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:49:26,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:49:26,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:49:26,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:49:26,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:49:26,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:49:26,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:49:26,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:49:26,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:49:26,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:49:26,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:49:26,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:49:26,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:49:26,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:49:26,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:49:26,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:49:26,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:49:26,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:49:26,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:49:26,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:49:26,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:49:26,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:49:26,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 17:49:26,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:49:26,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:49:26,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:49:26,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:49:26,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:49:26,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:49:26,252 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:49:26,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:49:26,252 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:49:26,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:49:26,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:49:26,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:49:26,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:49:26,253 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:49:26,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:49:26,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:49:26,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:49:26,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:49:26,255 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 17:49:26,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 17:49:26,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:49:26,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 17:49:26,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb53649e57c73811eb036860baf1102917fa8259 [2021-08-30 17:49:26,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:49:26,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:49:26,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:49:26,540 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:49:26,540 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:49:26,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-30 17:49:26,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2101b3625/9d0d345c0d1043aaa950fc86fdc7792f/FLAG0bd5dba8f [2021-08-30 17:49:27,003 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:49:27,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-30 17:49:27,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2101b3625/9d0d345c0d1043aaa950fc86fdc7792f/FLAG0bd5dba8f [2021-08-30 17:49:27,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2101b3625/9d0d345c0d1043aaa950fc86fdc7792f [2021-08-30 17:49:27,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:49:27,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:49:27,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:27,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:49:27,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:49:27,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7c1e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27, skipping insertion in model container [2021-08-30 17:49:27,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:49:27,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:49:27,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:27,387 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-30 17:49:27,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:49:27,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:27,452 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:49:27,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:49:27,542 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:49:27,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27 WrapperNode [2021-08-30 17:49:27,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:49:27,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:49:27,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:49:27,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:49:27,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:49:27,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:49:27,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:49:27,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:49:27,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (1/1) ... [2021-08-30 17:49:27,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:49:27,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:49:27,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 17:49:27,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 17:49:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-30 17:49:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-30 17:49:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-30 17:49:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-30 17:49:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-30 17:49:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 17:49:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 17:49:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 17:49:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 17:49:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 17:49:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 17:49:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 17:49:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 17:49:27,766 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 17:49:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 17:49:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 17:49:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-30 17:49:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-30 17:49:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-30 17:49:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-30 17:49:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:49:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-30 17:49:27,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-30 17:49:28,177 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:49:28,264 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 17:49:28,355 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:49:28,356 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-30 17:49:28,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:49:28 BoogieIcfgContainer [2021-08-30 17:49:28,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:49:28,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:49:28,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:49:28,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:49:28,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:49:27" (1/3) ... [2021-08-30 17:49:28,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50946f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:49:28, skipping insertion in model container [2021-08-30 17:49:28,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:49:27" (2/3) ... [2021-08-30 17:49:28,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50946f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:49:28, skipping insertion in model container [2021-08-30 17:49:28,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:49:28" (3/3) ... [2021-08-30 17:49:28,365 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2021-08-30 17:49:28,368 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:49:28,368 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-08-30 17:49:28,401 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:49:28,406 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 17:49:28,406 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-08-30 17:49:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-08-30 17:49:28,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:49:28,422 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:28,422 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:28,422 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 74 more)] === [2021-08-30 17:49:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:28,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1086874314, now seen corresponding path program 1 times [2021-08-30 17:49:28,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:28,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102932513] [2021-08-30 17:49:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:28,436 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:28,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:28,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:28,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 17:49:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:28,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:49:28,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:28,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:28,816 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:28,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102932513] [2021-08-30 17:49:28,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102932513] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:28,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:28,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:49:28,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680201910] [2021-08-30 17:49:28,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:49:28,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:49:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:28,849 INFO L87 Difference]: Start difference. First operand has 111 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 88 states have internal predecessors, (100), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:29,016 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2021-08-30 17:49:29,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:49:29,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-30 17:49:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:29,022 INFO L225 Difference]: With dead ends: 67 [2021-08-30 17:49:29,023 INFO L226 Difference]: Without dead ends: 64 [2021-08-30 17:49:29,025 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.29ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:29,029 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 24 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137.09ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:29,031 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 47 Invalid, 167 Unknown, 0 Unchecked, 5.45ms Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 137.09ms Time] [2021-08-30 17:49:29,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-30 17:49:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2021-08-30 17:49:29,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-30 17:49:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-08-30 17:49:29,061 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2021-08-30 17:49:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:29,061 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-08-30 17:49:29,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:29,062 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-08-30 17:49:29,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-30 17:49:29,064 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:29,064 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:29,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:29,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:29,271 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 74 more)] === [2021-08-30 17:49:29,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:29,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1465282647, now seen corresponding path program 1 times [2021-08-30 17:49:29,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:29,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647625741] [2021-08-30 17:49:29,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:29,276 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:29,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:29,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:29,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 17:49:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:29,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 17:49:29,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:29,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:29,519 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:29,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647625741] [2021-08-30 17:49:29,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647625741] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:29,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:29,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-30 17:49:29,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551811177] [2021-08-30 17:49:29,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 17:49:29,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:29,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 17:49:29,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:49:29,521 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:49:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:29,619 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-08-30 17:49:29,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 17:49:29,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-08-30 17:49:29,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:29,620 INFO L225 Difference]: With dead ends: 64 [2021-08-30 17:49:29,620 INFO L226 Difference]: Without dead ends: 61 [2021-08-30 17:49:29,620 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 17:49:29,621 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.06ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:29,621 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 13 Invalid, 99 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 91.06ms Time] [2021-08-30 17:49:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-30 17:49:29,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2021-08-30 17:49:29,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.46875) internal successors, (47), 39 states have internal predecessors, (47), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-08-30 17:49:29,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2021-08-30 17:49:29,626 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2021-08-30 17:49:29,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:29,626 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2021-08-30 17:49:29,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:49:29,627 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2021-08-30 17:49:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-30 17:49:29,627 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:29,627 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:29,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:29,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:29,834 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-30 17:49:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:29,835 INFO L82 PathProgramCache]: Analyzing trace with hash -666992135, now seen corresponding path program 1 times [2021-08-30 17:49:29,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:29,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117277472] [2021-08-30 17:49:29,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:29,835 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:29,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:29,837 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:29,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 17:49:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:29,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-30 17:49:29,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:30,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:30,092 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:30,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117277472] [2021-08-30 17:49:30,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117277472] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:30,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:30,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-30 17:49:30,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250944655] [2021-08-30 17:49:30,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 17:49:30,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:30,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 17:49:30,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:49:30,095 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 17:49:30,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:30,220 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2021-08-30 17:49:30,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:49:30,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-08-30 17:49:30,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:30,221 INFO L225 Difference]: With dead ends: 98 [2021-08-30 17:49:30,221 INFO L226 Difference]: Without dead ends: 98 [2021-08-30 17:49:30,222 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 17.93ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:49:30,222 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 162 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.59ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.25ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:30,223 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 24 Invalid, 99 Unknown, 0 Unchecked, 1.59ms Time], IncrementalHoareTripleChecker [11 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 108.25ms Time] [2021-08-30 17:49:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-08-30 17:49:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2021-08-30 17:49:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 51 states have internal predecessors, (65), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-30 17:49:30,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2021-08-30 17:49:30,229 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2021-08-30 17:49:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:30,229 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2021-08-30 17:49:30,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 17:49:30,230 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2021-08-30 17:49:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:49:30,230 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:30,230 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:30,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-30 17:49:30,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:30,437 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 74 more)] === [2021-08-30 17:49:30,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:30,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788241, now seen corresponding path program 1 times [2021-08-30 17:49:30,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:30,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998080651] [2021-08-30 17:49:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:30,438 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:30,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:30,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:30,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 17:49:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:30,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:49:30,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:30,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:49:30,653 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-30 17:49:30,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-08-30 17:49:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:30,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:30,808 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:30,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998080651] [2021-08-30 17:49:30,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998080651] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:49:30,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:49:30,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-30 17:49:30,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122969416] [2021-08-30 17:49:30,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 17:49:30,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:30,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 17:49:30,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-30 17:49:30,818 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:49:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:30,947 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2021-08-30 17:49:30,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 17:49:30,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 23 [2021-08-30 17:49:30,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:30,949 INFO L225 Difference]: With dead ends: 82 [2021-08-30 17:49:30,949 INFO L226 Difference]: Without dead ends: 82 [2021-08-30 17:49:30,949 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 73.38ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-30 17:49:30,949 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 115.59ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:30,949 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 30 Invalid, 255 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 98 Unchecked, 115.59ms Time] [2021-08-30 17:49:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-08-30 17:49:30,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2021-08-30 17:49:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 63 states have internal predecessors, (80), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-30 17:49:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2021-08-30 17:49:30,954 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 23 [2021-08-30 17:49:30,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:30,955 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-08-30 17:49:30,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 17:49:30,955 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2021-08-30 17:49:30,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:49:30,955 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:30,956 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:30,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:31,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:31,162 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 74 more)] === [2021-08-30 17:49:31,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:31,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788242, now seen corresponding path program 1 times [2021-08-30 17:49:31,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:31,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562954146] [2021-08-30 17:49:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:31,163 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:31,164 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:31,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 17:49:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:31,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-30 17:49:31,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:31,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:49:31,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-30 17:49:33,479 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-30 17:49:33,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-08-30 17:49:33,487 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-30 17:49:33,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-08-30 17:49:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:33,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:45,559 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 29 treesize of output 27 [2021-08-30 17:49:45,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-08-30 17:49:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:45,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:45,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562954146] [2021-08-30 17:49:45,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562954146] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 17:49:45,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-30 17:49:45,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-08-30 17:49:45,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728218150] [2021-08-30 17:49:45,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 17:49:45,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:45,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 17:49:45,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=258, Unknown=5, NotChecked=0, Total=306 [2021-08-30 17:49:45,976 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-30 17:49:48,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:48,798 INFO L93 Difference]: Finished difference Result 129 states and 164 transitions. [2021-08-30 17:49:48,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-30 17:49:48,803 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 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 23 [2021-08-30 17:49:48,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:48,804 INFO L225 Difference]: With dead ends: 129 [2021-08-30 17:49:48,804 INFO L226 Difference]: Without dead ends: 129 [2021-08-30 17:49:48,804 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 13566.67ms TimeCoverageRelationStatistics Valid=84, Invalid=463, Unknown=5, NotChecked=0, Total=552 [2021-08-30 17:49:48,805 INFO L928 BasicCegarLoop]: 8 mSDtfsCounter, 58 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 381.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.77ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 417 IncrementalHoareTripleChecker+Unchecked, 448.15ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:48,805 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 79 Invalid, 746 Unknown, 0 Unchecked, 9.77ms Time], IncrementalHoareTripleChecker [8 Valid, 321 Invalid, 0 Unknown, 417 Unchecked, 448.15ms Time] [2021-08-30 17:49:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-08-30 17:49:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 85. [2021-08-30 17:49:48,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 68 states have internal predecessors, (88), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-30 17:49:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 108 transitions. [2021-08-30 17:49:48,811 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 108 transitions. Word has length 23 [2021-08-30 17:49:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:48,811 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 108 transitions. [2021-08-30 17:49:48,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-30 17:49:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 108 transitions. [2021-08-30 17:49:48,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:49:48,812 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:48,812 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:48,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:49,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:49,013 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-30 17:49:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:49,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1659417393, now seen corresponding path program 1 times [2021-08-30 17:49:49,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:49,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672724802] [2021-08-30 17:49:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:49,015 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:49,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:49,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:49,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 17:49:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:49,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:49:49,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:49:49,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:49,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:49:49,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:49,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672724802] [2021-08-30 17:49:49,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672724802] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:49,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:49,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:49:49,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196912993] [2021-08-30 17:49:49,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:49:49,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:49,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:49:49,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:49,271 INFO L87 Difference]: Start difference. First operand 85 states and 108 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:49,396 INFO L93 Difference]: Finished difference Result 91 states and 107 transitions. [2021-08-30 17:49:49,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:49:49,396 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-08-30 17:49:49,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:49,397 INFO L225 Difference]: With dead ends: 91 [2021-08-30 17:49:49,397 INFO L226 Difference]: Without dead ends: 91 [2021-08-30 17:49:49,397 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.16ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:49,398 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.39ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:49,398 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 43 Invalid, 140 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 120.39ms Time] [2021-08-30 17:49:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-30 17:49:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 73. [2021-08-30 17:49:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 57 states have internal predecessors, (69), 7 states have call successors, (7), 6 states have call predecessors, (7), 7 states have return successors, (10), 9 states have call predecessors, (10), 6 states have call successors, (10) [2021-08-30 17:49:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2021-08-30 17:49:49,404 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 23 [2021-08-30 17:49:49,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:49,404 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2021-08-30 17:49:49,404 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:49,404 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2021-08-30 17:49:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 17:49:49,405 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:49,405 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:49,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-08-30 17:49:49,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:49,606 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-30 17:49:49,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:49,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1125229616, now seen corresponding path program 1 times [2021-08-30 17:49:49,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:49,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710390966] [2021-08-30 17:49:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:49,607 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:49,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:49,607 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:49,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-30 17:49:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:49,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 17:49:49,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:49:49,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:49:49,908 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:49,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710390966] [2021-08-30 17:49:49,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710390966] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-30 17:49:49,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 17:49:49,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-30 17:49:49,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916102253] [2021-08-30 17:49:49,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:49:49,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:49,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:49:49,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:49,909 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:49:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:50,009 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2021-08-30 17:49:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:49:50,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 23 [2021-08-30 17:49:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:50,010 INFO L225 Difference]: With dead ends: 62 [2021-08-30 17:49:50,010 INFO L226 Difference]: Without dead ends: 58 [2021-08-30 17:49:50,010 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.64ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:50,011 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.23ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:50,011 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 133 Unknown, 0 Unchecked, 0.88ms Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 95.23ms Time] [2021-08-30 17:49:50,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-08-30 17:49:50,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-08-30 17:49:50,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.358974358974359) internal successors, (53), 45 states have internal predecessors, (53), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-30 17:49:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2021-08-30 17:49:50,014 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 23 [2021-08-30 17:49:50,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:50,014 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2021-08-30 17:49:50,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-30 17:49:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2021-08-30 17:49:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-30 17:49:50,015 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:50,015 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:50,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:50,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:50,222 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-30 17:49:50,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:50,222 INFO L82 PathProgramCache]: Analyzing trace with hash -475603747, now seen corresponding path program 1 times [2021-08-30 17:49:50,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:50,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621276121] [2021-08-30 17:49:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:50,223 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:50,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:50,232 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:50,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-30 17:49:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:50,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 17:49:50,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:49:50,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 17:49:50,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:50,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621276121] [2021-08-30 17:49:50,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621276121] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:50,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:50,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 17:49:50,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556239779] [2021-08-30 17:49:50,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 17:49:50,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:50,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 17:49:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:49:50,449 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:50,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:50,635 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2021-08-30 17:49:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 17:49:50,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-08-30 17:49:50,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:50,637 INFO L225 Difference]: With dead ends: 75 [2021-08-30 17:49:50,637 INFO L226 Difference]: Without dead ends: 75 [2021-08-30 17:49:50,637 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.21ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:49:50,638 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 173.81ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:50,638 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 47 Invalid, 171 Unknown, 0 Unchecked, 2.37ms Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 173.81ms Time] [2021-08-30 17:49:50,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-08-30 17:49:50,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 58. [2021-08-30 17:49:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 45 states have internal predecessors, (51), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-30 17:49:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2021-08-30 17:49:50,660 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 25 [2021-08-30 17:49:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:50,660 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2021-08-30 17:49:50,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 17:49:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2021-08-30 17:49:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-30 17:49:50,661 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:50,661 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:50,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:50,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:50,872 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-30 17:49:50,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:50,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1267206588, now seen corresponding path program 1 times [2021-08-30 17:49:50,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:50,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832392736] [2021-08-30 17:49:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:50,873 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:50,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:50,874 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:50,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-30 17:49:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:49:51,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-30 17:49:51,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 17:49:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:49:51,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 17:49:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 17:49:51,113 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 17:49:51,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832392736] [2021-08-30 17:49:51,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832392736] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 17:49:51,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:49:51,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-30 17:49:51,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995566040] [2021-08-30 17:49:51,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 17:49:51,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 17:49:51,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 17:49:51,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 17:49:51,114 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:49:51,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:49:51,231 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2021-08-30 17:49:51,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:49:51,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-08-30 17:49:51,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:49:51,232 INFO L225 Difference]: With dead ends: 64 [2021-08-30 17:49:51,232 INFO L226 Difference]: Without dead ends: 64 [2021-08-30 17:49:51,232 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.12ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-30 17:49:51,232 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.75ms IncrementalHoareTripleChecker+Time [2021-08-30 17:49:51,233 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 48 Invalid, 155 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 108.75ms Time] [2021-08-30 17:49:51,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-30 17:49:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-08-30 17:49:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 48 states have internal predecessors, (55), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-30 17:49:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2021-08-30 17:49:51,236 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 25 [2021-08-30 17:49:51,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:49:51,236 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2021-08-30 17:49:51,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-30 17:49:51,236 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2021-08-30 17:49:51,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-30 17:49:51,237 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:49:51,237 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:49:51,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:51,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:51,444 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-30 17:49:51,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:49:51,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1985214815, now seen corresponding path program 1 times [2021-08-30 17:49:51,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 17:49:51,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648859374] [2021-08-30 17:49:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:49:51,444 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 17:49:51,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 17:49:51,445 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 17:49:51,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-30 17:49:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:49:51,555 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 17:49:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:49:51,587 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-30 17:49:51,587 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 17:49:51,588 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (77 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (76 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (75 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (74 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (73 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (72 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (71 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (70 of 78 remaining) [2021-08-30 17:49:51,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (69 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (68 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (67 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (66 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (65 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (64 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (63 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (62 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (61 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (60 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (59 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (58 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (57 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (56 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (55 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (54 of 78 remaining) [2021-08-30 17:49:51,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (53 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (52 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (51 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (50 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (49 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (48 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (47 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (46 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (45 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (44 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (43 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (42 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (41 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (40 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (39 of 78 remaining) [2021-08-30 17:49:51,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (38 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (37 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (36 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (35 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (34 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (33 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (32 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (31 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (30 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (29 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (28 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (27 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (26 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (25 of 78 remaining) [2021-08-30 17:49:51,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (24 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (23 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (22 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (21 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (20 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (19 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (18 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (17 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (16 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (15 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (14 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (13 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (12 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (11 of 78 remaining) [2021-08-30 17:49:51,593 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (10 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (9 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (8 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (7 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION (6 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION (5 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION (4 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION (3 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE (2 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE (1 of 78 remaining) [2021-08-30 17:49:51,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE (0 of 78 remaining) [2021-08-30 17:49:51,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-30 17:49:51,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 17:49:51,799 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:49:51,804 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-30 17:49:51,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:49:51 BoogieIcfgContainer [2021-08-30 17:49:51,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:49:51,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:49:51,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:49:51,814 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:49:51,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:49:28" (3/4) ... [2021-08-30 17:49:51,816 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 17:49:51,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:49:51,817 INFO L158 Benchmark]: Toolchain (without parser) took 24794.93ms. Allocated memory was 60.8MB in the beginning and 148.9MB in the end (delta: 88.1MB). Free memory was 37.7MB in the beginning and 52.0MB in the end (delta: -14.3MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2021-08-30 17:49:51,817 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:49:51,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.22ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 28.3MB in the end (delta: 9.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-08-30 17:49:51,818 INFO L158 Benchmark]: Boogie Preprocessor took 121.14ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 28.1MB in the beginning and 64.1MB in the end (delta: -36.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-08-30 17:49:51,818 INFO L158 Benchmark]: RCFGBuilder took 694.09ms. Allocated memory is still 83.9MB. Free memory was 64.1MB in the beginning and 50.2MB in the end (delta: 13.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-08-30 17:49:51,818 INFO L158 Benchmark]: TraceAbstraction took 23453.71ms. Allocated memory was 83.9MB in the beginning and 148.9MB in the end (delta: 65.0MB). Free memory was 49.7MB in the beginning and 52.0MB in the end (delta: -2.3MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2021-08-30 17:49:51,818 INFO L158 Benchmark]: Witness Printer took 2.69ms. Allocated memory is still 148.9MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:49:51,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.22ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 28.3MB in the end (delta: 9.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.14ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 28.1MB in the beginning and 64.1MB in the end (delta: -36.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * RCFGBuilder took 694.09ms. Allocated memory is still 83.9MB. Free memory was 64.1MB in the beginning and 50.2MB in the end (delta: 13.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 23453.71ms. Allocated memory was 83.9MB in the beginning and 148.9MB in the end (delta: 65.0MB). Free memory was 49.7MB in the beginning and 52.0MB in the end (delta: -2.3MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * Witness Printer took 2.69ms. Allocated memory is still 148.9MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 778]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 778. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L779] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L761] int len = 10; VAL [ldv_global_msg_list={-2147483648:0}, len=10] [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(struct A18*)*len)={1:0}, len=10] [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L766] COND FALSE !(!array) VAL [array={1:0}, i=0, ldv_global_msg_list={-2147483648:0}, len=10] [L767] COND TRUE i=0) VAL [array={1:0}, i=0, j=4294967295, ldv_global_msg_list={-2147483648:0}, len=10, p={0:0}] [L779] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 351 locations, 78 error locations. Started 1 CEGAR loops. OverallTime: 23397.98ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 15.13ms, AutomataDifference: 3949.30ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.42ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 1398.32ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 326 mSDsluCounter, 374 SdHoareTripleChecker+Invalid, 1170.14ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 515 IncrementalHoareTripleChecker+Unchecked, 1282 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1422 IncrementalHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 95 mSDtfsCounter, 1422 mSolverCounterSat, 23.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 389 GetRequests, 330 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 13734.94ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 73.33ms AutomataMinimizationTime, 9 MinimizatonAttempts, 152 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 85.39ms SsaConstructionTime, 191.92ms SatisfiabilityAnalysisTime, 15897.03ms InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 370 ConstructedInterpolants, 19 QuantifiedInterpolants, 1668 SizeOfPredicates, 12 NumberOfNonLiveVariables, 812 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 36/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-30 17:49:51,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...