./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 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_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 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:14:46,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:14:46,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:14:46,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:14:46,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:14:46,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:14:46,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:14:46,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:14:46,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:14:46,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:14:46,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:14:46,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:14:46,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:14:46,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:14:46,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:14:46,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:14:46,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:14:46,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:14:46,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:14:46,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:14:46,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:14:46,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:14:46,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:14:46,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:14:46,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:14:46,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:14:46,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:14:46,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:14:46,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:14:46,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:14:46,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:14:46,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:14:46,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:14:46,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:14:46,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:14:46,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:14:46,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:14:46,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:14:46,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:14:46,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:14:46,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:14:46,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:14:46,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:14:46,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:14:46,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:14:46,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:14:46,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:14:46,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:14:46,096 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:14:46,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:14:46,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:14:46,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:14:46,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:14:46,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:14:46,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:14:46,097 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:14:46,097 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:14:46,098 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:14:46,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:14:46,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:14:46,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:14:46,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:14:46,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:14:46,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:14:46,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:14:46,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:46,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:14:46,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:14:46,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:14:46,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:14:46,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:14:46,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb53649e57c73811eb036860baf1102917fa8259 [2021-08-27 06:14:46,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:14:46,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:14:46,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:14:46,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:14:46,379 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:14:46,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-27 06:14:46,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d1db86f1/a8085f4775af4d43bb77a798cc8673d5/FLAG35b50fc9b [2021-08-27 06:14:46,921 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:14:46,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-27 06:14:46,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d1db86f1/a8085f4775af4d43bb77a798cc8673d5/FLAG35b50fc9b [2021-08-27 06:14:46,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d1db86f1/a8085f4775af4d43bb77a798cc8673d5 [2021-08-27 06:14:46,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:14:46,956 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:14:46,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:46,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:14:46,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:14:46,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:46" (1/1) ... [2021-08-27 06:14:46,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5033f23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:46, skipping insertion in model container [2021-08-27 06:14:46,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:46" (1/1) ... [2021-08-27 06:14:46,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:14:46,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:47,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:47,242 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:14:47,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@593a3da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:47, skipping insertion in model container [2021-08-27 06:14:47,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:47,243 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:14:47,245 INFO L168 Benchmark]: Toolchain (without parser) took 288.85 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 29.7 MB in the beginning and 50.8 MB in the end (delta: -21.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:14:47,246 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.6 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:14:47,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.83 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 29.5 MB in the beginning and 51.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:14:47,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.6 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 286.83 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 29.5 MB in the beginning and 51.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:14:48,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:14:48,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:14:48,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:14:48,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:14:48,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:14:48,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:14:48,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:14:48,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:14:48,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:14:48,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:14:48,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:14:48,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:14:48,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:14:48,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:14:48,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:14:48,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:14:48,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:14:48,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:14:48,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:14:48,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:14:48,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:14:48,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:14:48,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:14:48,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:14:48,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:14:48,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:14:48,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:14:48,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:14:48,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:14:48,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:14:48,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:14:48,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:14:48,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:14:48,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:14:48,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:14:48,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:14:48,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:14:48,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:14:48,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:14:48,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:14:48,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:14:48,743 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:14:48,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:14:48,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:14:48,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:14:48,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:14:48,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:14:48,746 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:14:48,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:14:48,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:14:48,746 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:14:48,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:14:48,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:14:48,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:14:48,747 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:14:48,748 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:14:48,748 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:14:48,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:14:48,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:14:48,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:14:48,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:14:48,749 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:14:48,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:14:48,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:14:48,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:14:48,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:14:48,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:48,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:14:48,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:14:48,750 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:14:48,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:14:48,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:14:48,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:14:48,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb53649e57c73811eb036860baf1102917fa8259 [2021-08-27 06:14:48,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:14:49,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:14:49,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:14:49,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:14:49,017 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:14:49,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-27 06:14:49,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9677191/c5248dc6e020419e9c329bf4cbd64bd5/FLAGfc23b648f [2021-08-27 06:14:49,523 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:14:49,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2021-08-27 06:14:49,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9677191/c5248dc6e020419e9c329bf4cbd64bd5/FLAGfc23b648f [2021-08-27 06:14:49,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9677191/c5248dc6e020419e9c329bf4cbd64bd5 [2021-08-27 06:14:49,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:14:49,560 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:14:49,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:49,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:14:49,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:14:49,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:49" (1/1) ... [2021-08-27 06:14:49,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8adc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:49, skipping insertion in model container [2021-08-27 06:14:49,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:49" (1/1) ... [2021-08-27 06:14:49,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:14:49,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:49,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:49,908 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:14:49,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:49,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:49,976 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:14:50,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:50,076 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:14:50,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50 WrapperNode [2021-08-27 06:14:50,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:50,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:14:50,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:14:50,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:14:50,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:14:50,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:14:50,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:14:50,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:14:50,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:50,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:14:50,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:14:50,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:14:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:14:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:14:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:14:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:14:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:14:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:14:50,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:14:50,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:14:50,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:14:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:14:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:14:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:14:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:14:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:14:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:14:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:14:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:14:50,207 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:14:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:14:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:14:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:14:50,211 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:14:50,212 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:14:50,213 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:14:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:14:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:14:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:14:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:14:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:14:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:14:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:14:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:14:50,216 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:14:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:14:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:14:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:14:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:14:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:14:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:14:50,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:14:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:14:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:14:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:14:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:14:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:14:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:14:50,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:14:50,635 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:14:50,816 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:14:51,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:14:51,010 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-27 06:14:51,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:51 BoogieIcfgContainer [2021-08-27 06:14:51,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:14:51,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:14:51,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:14:51,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:14:51,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:14:49" (1/3) ... [2021-08-27 06:14:51,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a446e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:14:51, skipping insertion in model container [2021-08-27 06:14:51,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50" (2/3) ... [2021-08-27 06:14:51,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a446e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:14:51, skipping insertion in model container [2021-08-27 06:14:51,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:51" (3/3) ... [2021-08-27 06:14:51,017 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2021-08-27 06:14:51,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:14:51,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-08-27 06:14:51,051 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:14:51,054 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:14:51,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-08-27 06:14:51,064 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) [2021-08-27 06:14:51,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:14:51,069 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:51,069 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:51,070 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)] === [2021-08-27 06:14:51,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:51,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1086874314, now seen corresponding path program 1 times [2021-08-27 06:14:51,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:51,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306381982] [2021-08-27 06:14:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:51,081 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:51,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:51,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:14:51,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:14:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:51,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:14:51,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:51,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:51,449 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:51,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306381982] [2021-08-27 06:14:51,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306381982] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:51,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:51,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:14:51,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122853359] [2021-08-27 06:14:51,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:14:51,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:51,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:14:51,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:14:51,473 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) [2021-08-27 06:14:51,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:51,565 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2021-08-27 06:14:51,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:14:51,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:14:51,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:51,573 INFO L225 Difference]: With dead ends: 67 [2021-08-27 06:14:51,573 INFO L226 Difference]: Without dead ends: 64 [2021-08-27 06:14:51,574 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:14:51,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-27 06:14:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2021-08-27 06:14:51,601 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) [2021-08-27 06:14:51,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-08-27 06:14:51,603 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2021-08-27 06:14:51,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:51,603 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-08-27 06:14:51,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:14:51,604 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-08-27 06:14:51,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:14:51,606 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:51,606 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:51,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:14:51,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:14:51,813 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)] === [2021-08-27 06:14:51,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:51,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1465282647, now seen corresponding path program 1 times [2021-08-27 06:14:51,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:51,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992905631] [2021-08-27 06:14:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:51,814 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:51,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:51,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:14:51,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:14:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:51,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:14:51,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:52,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:52,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:52,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992905631] [2021-08-27 06:14:52,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992905631] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:52,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:52,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:14:52,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541522898] [2021-08-27 06:14:52,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:14:52,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:14:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:14:52,096 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) [2021-08-27 06:14:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:52,148 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-08-27 06:14:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:14:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-08-27 06:14:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:52,149 INFO L225 Difference]: With dead ends: 64 [2021-08-27 06:14:52,149 INFO L226 Difference]: Without dead ends: 61 [2021-08-27 06:14:52,150 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:14:52,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-27 06:14:52,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2021-08-27 06:14:52,153 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) [2021-08-27 06:14:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2021-08-27 06:14:52,154 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2021-08-27 06:14:52,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:52,155 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2021-08-27 06:14:52,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:14:52,155 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2021-08-27 06:14:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:14:52,156 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:52,156 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:52,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:14:52,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:14:52,364 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)] === [2021-08-27 06:14:52,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:52,364 INFO L82 PathProgramCache]: Analyzing trace with hash -666992135, now seen corresponding path program 1 times [2021-08-27 06:14:52,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:52,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373704667] [2021-08-27 06:14:52,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:52,365 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:52,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:52,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:14:52,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:14:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:52,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:14:52,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:52,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:52,648 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:52,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373704667] [2021-08-27 06:14:52,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373704667] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:52,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:52,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:14:52,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665473693] [2021-08-27 06:14:52,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:14:52,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:52,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:14:52,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:14:52,650 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) [2021-08-27 06:14:52,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:52,710 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2021-08-27 06:14:52,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:14:52,710 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 [2021-08-27 06:14:52,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:52,714 INFO L225 Difference]: With dead ends: 98 [2021-08-27 06:14:52,714 INFO L226 Difference]: Without dead ends: 98 [2021-08-27 06:14:52,714 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:14:52,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-08-27 06:14:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2021-08-27 06:14:52,729 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) [2021-08-27 06:14:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2021-08-27 06:14:52,732 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2021-08-27 06:14:52,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:52,732 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2021-08-27 06:14:52,732 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) [2021-08-27 06:14:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2021-08-27 06:14:52,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:14:52,736 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:52,736 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:52,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:14:52,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:14:52,943 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)] === [2021-08-27 06:14:52,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:52,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788241, now seen corresponding path program 1 times [2021-08-27 06:14:52,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:52,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922218202] [2021-08-27 06:14:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:52,945 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:52,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:52,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:14:52,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:14:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:53,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:14:53,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:53,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:14:53,255 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:14:53,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-08-27 06:14:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:53,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:53,439 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:53,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922218202] [2021-08-27 06:14:53,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922218202] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:14:53,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:14:53,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-27 06:14:53,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858699431] [2021-08-27 06:14:53,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:14:53,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:53,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:14:53,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:14:53,441 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) [2021-08-27 06:14:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:53,833 INFO L93 Difference]: Finished difference Result 134 states and 158 transitions. [2021-08-27 06:14:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:14:53,834 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 [2021-08-27 06:14:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:53,835 INFO L225 Difference]: With dead ends: 134 [2021-08-27 06:14:53,835 INFO L226 Difference]: Without dead ends: 134 [2021-08-27 06:14:53,836 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 133.6ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:14:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-27 06:14:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 76. [2021-08-27 06:14:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 61 states have internal predecessors, (79), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-27 06:14:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2021-08-27 06:14:53,841 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 23 [2021-08-27 06:14:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:53,842 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2021-08-27 06:14:53,842 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) [2021-08-27 06:14:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2021-08-27 06:14:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:14:53,843 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:53,843 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:53,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:14:54,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:14:54,050 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)] === [2021-08-27 06:14:54,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:54,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788242, now seen corresponding path program 1 times [2021-08-27 06:14:54,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:54,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668420881] [2021-08-27 06:14:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:54,051 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:54,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:54,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:14:54,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:14:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:54,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:14:54,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:54,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:14:54,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:14:56,470 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:14:56,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-08-27 06:14:56,478 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:14:56,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-08-27 06:14:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:56,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:15:13,599 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 [2021-08-27 06:15:13,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-08-27 06:15:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:14,099 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:15:14,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668420881] [2021-08-27 06:15:14,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668420881] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:15:14,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:15:14,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-08-27 06:15:14,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066526914] [2021-08-27 06:15:14,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:15:14,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:15:14,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:15:14,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=256, Unknown=7, NotChecked=0, Total=306 [2021-08-27 06:15:14,100 INFO L87 Difference]: Start difference. First operand 76 states and 99 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) [2021-08-27 06:18:18,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:18,042 INFO L93 Difference]: Finished difference Result 173 states and 200 transitions. [2021-08-27 06:18:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 06:18:18,043 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 [2021-08-27 06:18:18,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:18,044 INFO L225 Difference]: With dead ends: 173 [2021-08-27 06:18:18,044 INFO L226 Difference]: Without dead ends: 173 [2021-08-27 06:18:18,044 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 45926.5ms TimeCoverageRelationStatistics Valid=153, Invalid=701, Unknown=16, NotChecked=0, Total=870 [2021-08-27 06:18:18,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-08-27 06:18:18,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 76. [2021-08-27 06:18:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 61 states have internal predecessors, (78), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-27 06:18:18,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2021-08-27 06:18:18,049 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 23 [2021-08-27 06:18:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:18,049 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2021-08-27 06:18:18,049 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) [2021-08-27 06:18:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2021-08-27 06:18:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:18:18,050 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:18,050 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:18,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:18,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:18,258 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:18:18,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:18,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1125229616, now seen corresponding path program 1 times [2021-08-27 06:18:18,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:18,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024635251] [2021-08-27 06:18:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:18,259 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:18,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:18,260 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:18,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:18:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:18,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:18:18,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:18,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:18:18,654 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:18,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024635251] [2021-08-27 06:18:18,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024635251] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:18:18,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:18:18,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-27 06:18:18,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811554668] [2021-08-27 06:18:18,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:18,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:18,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:18,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:18,657 INFO L87 Difference]: Start difference. First operand 76 states and 98 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) [2021-08-27 06:18:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:18,691 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-08-27 06:18:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:18,692 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 [2021-08-27 06:18:18,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:18,692 INFO L225 Difference]: With dead ends: 54 [2021-08-27 06:18:18,692 INFO L226 Difference]: Without dead ends: 50 [2021-08-27 06:18:18,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:18,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-08-27 06:18:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-08-27 06:18:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.393939393939394) internal successors, (46), 39 states have internal predecessors, (46), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:18:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2021-08-27 06:18:18,695 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 23 [2021-08-27 06:18:18,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:18,695 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2021-08-27 06:18:18,695 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) [2021-08-27 06:18:18,695 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2021-08-27 06:18:18,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:18:18,695 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:18,695 INFO L512 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] [2021-08-27 06:18:18,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:18,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:18,896 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:18:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash -475603747, now seen corresponding path program 1 times [2021-08-27 06:18:18,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:18,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502592768] [2021-08-27 06:18:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:18,897 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:18,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:18,906 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:18,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:18:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:19,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:19,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:18:19,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:18:19,298 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:19,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502592768] [2021-08-27 06:18:19,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502592768] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:19,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:19,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:19,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190780330] [2021-08-27 06:18:19,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:19,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:19,301 INFO L87 Difference]: Start difference. First operand 50 states and 59 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) [2021-08-27 06:18:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:19,341 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2021-08-27 06:18:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:18:19,342 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 [2021-08-27 06:18:19,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:19,343 INFO L225 Difference]: With dead ends: 80 [2021-08-27 06:18:19,343 INFO L226 Difference]: Without dead ends: 80 [2021-08-27 06:18:19,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:18:19,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-08-27 06:18:19,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 54. [2021-08-27 06:18:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 41 states have internal predecessors, (50), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:18:19,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2021-08-27 06:18:19,363 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 25 [2021-08-27 06:18:19,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:19,364 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-08-27 06:18:19,364 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) [2021-08-27 06:18:19,365 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-08-27 06:18:19,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:18:19,366 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:19,366 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:19,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:19,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:19,574 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)] === [2021-08-27 06:18:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:19,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1267206588, now seen corresponding path program 1 times [2021-08-27 06:18:19,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:19,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011447641] [2021-08-27 06:18:19,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:19,574 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:19,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:19,575 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:19,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:18:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:19,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:18:19,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:18:19,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:18:19,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:19,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011447641] [2021-08-27 06:18:19,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011447641] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:19,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:19,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:18:19,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115103270] [2021-08-27 06:18:19,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:18:19,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:20,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:18:20,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:18:20,000 INFO L87 Difference]: Start difference. First operand 54 states and 63 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) [2021-08-27 06:18:20,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:20,094 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2021-08-27 06:18:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:20,095 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 [2021-08-27 06:18:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:20,095 INFO L225 Difference]: With dead ends: 58 [2021-08-27 06:18:20,095 INFO L226 Difference]: Without dead ends: 58 [2021-08-27 06:18:20,096 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-08-27 06:18:20,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-08-27 06:18:20,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 43 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:18:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2021-08-27 06:18:20,098 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 25 [2021-08-27 06:18:20,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:20,098 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2021-08-27 06:18:20,098 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) [2021-08-27 06:18:20,098 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2021-08-27 06:18:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:18:20,099 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:20,099 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:20,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:20,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:20,299 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 74 more)] === [2021-08-27 06:18:20,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:20,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1985214815, now seen corresponding path program 1 times [2021-08-27 06:18:20,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:20,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574572893] [2021-08-27 06:18:20,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:20,300 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:20,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:20,301 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:20,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:18:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:18:20,537 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 06:18:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:18:20,575 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 06:18:20,576 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 06:18:20,576 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:18:20,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:18:20,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:18:20,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-08-27 06:18:20,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-08-27 06:18:20,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:20,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:20,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:20,798 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:18:20,818 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:18:20,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:18:20 BoogieIcfgContainer [2021-08-27 06:18:20,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:18:20,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:18:20,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:18:20,830 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:18:20,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:51" (3/4) ... [2021-08-27 06:18:20,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:18:20,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:18:20,833 INFO L168 Benchmark]: Toolchain (without parser) took 211273.46 ms. Allocated memory was 62.9 MB in the beginning and 186.6 MB in the end (delta: 123.7 MB). Free memory was 41.5 MB in the beginning and 137.7 MB in the end (delta: -96.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:20,833 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 44.0 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:20,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.72 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 43.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:20,834 INFO L168 Benchmark]: Boogie Preprocessor took 66.86 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 38.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:20,834 INFO L168 Benchmark]: RCFGBuilder took 859.26 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 38.5 MB in the beginning and 45.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:20,834 INFO L168 Benchmark]: TraceAbstraction took 209816.61 ms. Allocated memory was 92.3 MB in the beginning and 186.6 MB in the end (delta: 94.4 MB). Free memory was 44.4 MB in the beginning and 137.7 MB in the end (delta: -93.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:20,834 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 186.6 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:20,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 44.0 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.72 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 43.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.86 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 38.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 859.26 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 38.5 MB in the beginning and 45.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 209816.61 ms. Allocated memory was 92.3 MB in the beginning and 186.6 MB in the end (delta: 94.4 MB). Free memory was 44.4 MB in the beginning and 137.7 MB in the end (delta: -93.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.81 ms. Allocated memory is still 186.6 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 209746.9ms, OverallIterations: 9, TraceHistogramMax: 2, EmptinessCheckTime: 16.3ms, AutomataDifference: 184753.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 381 SDtfs, 657 SDslu, 1072 SDs, 0 SdLazy, 683 SolverSat, 101 SolverUnsat, 73 SolverUnknown, 0 SolverNotchecked, 153349.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 356 GetRequests, 289 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 46165.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 75.9ms AutomataMinimizationTime, 8 MinimizatonAttempts, 250 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 107.1ms SsaConstructionTime, 154.2ms SatisfiabilityAnalysisTime, 21220.7ms InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 19 QuantifiedInterpolants, 1576 SizeOfPredicates, 12 NumberOfNonLiveVariables, 719 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:18:20,925 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...