./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test9.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_test9.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 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 ................................................................................................................................... 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_test9.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 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:25:58,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:25:58,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:25:58,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:25:58,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:25:58,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:25:58,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:25:58,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:25:58,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:25:58,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:25:58,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:25:58,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:25:58,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:25:58,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:25:58,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:25:58,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:25:58,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:25:58,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:25:58,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:25:58,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:25:58,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:25:58,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:25:58,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:25:58,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:25:58,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:25:58,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:25:58,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:25:58,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:25:58,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:25:58,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:25:58,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:25:58,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:25:58,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:25:58,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:25:58,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:25:58,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:25:58,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:25:58,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:25:58,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:25:58,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:25:58,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:25:58,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:25:58,564 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:25:58,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:25:58,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:25:58,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:25:58,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:25:58,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:25:58,568 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:25:58,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:25:58,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:25:58,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:25:58,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:25:58,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:25:58,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:25:58,569 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:25:58,570 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:25:58,570 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:25:58,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:25:58,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:25:58,570 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:25:58,570 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:25:58,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:25:58,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:25:58,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:25:58,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:58,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:25:58,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:25:58,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:25:58,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:25:58,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:25:58,572 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-08-27 06:25:58,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:25:58,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:25:58,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:25:58,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:25:58,936 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:25:58,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-08-27 06:25:59,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452ca7c22/f38416c5fbc44864b61bb7ab0b6c842e/FLAG55f76e8fb [2021-08-27 06:25:59,606 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:25:59,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-08-27 06:25:59,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452ca7c22/f38416c5fbc44864b61bb7ab0b6c842e/FLAG55f76e8fb [2021-08-27 06:25:59,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452ca7c22/f38416c5fbc44864b61bb7ab0b6c842e [2021-08-27 06:25:59,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:25:59,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:25:59,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:59,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:25:59,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:25:59,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:59" (1/1) ... [2021-08-27 06:25:59,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1110ad2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:59, skipping insertion in model container [2021-08-27 06:25:59,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:59" (1/1) ... [2021-08-27 06:25:59,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:25:59,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:26:00,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:26:00,352 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 06:26:00,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25eeaf10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:00, skipping insertion in model container [2021-08-27 06:26:00,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:26:00,354 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:26:00,357 INFO L168 Benchmark]: Toolchain (without parser) took 439.51 ms. Allocated memory is still 58.7 MB. Free memory was 36.2 MB in the beginning and 40.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:00,358 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:26:00,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.80 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 40.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:00,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 435.80 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 40.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.5 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 06:26:02,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:26:02,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:26:02,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:26:02,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:26:02,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:26:02,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:26:02,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:26:02,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:26:02,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:26:02,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:26:02,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:26:02,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:26:02,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:26:02,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:26:02,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:26:02,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:26:02,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:26:02,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:26:02,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:26:02,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:26:02,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:26:02,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:26:02,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:26:02,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:26:02,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:26:02,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:26:02,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:26:02,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:26:02,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:26:02,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:26:02,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:26:02,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:26:02,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:26:02,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:26:02,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:26:02,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:26:02,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:26:02,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:26:02,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:26:02,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:26:02,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:26:02,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:26:02,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:26:02,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:26:02,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:26:02,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:26:02,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:26:02,235 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:26:02,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:26:02,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:26:02,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:26:02,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:26:02,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:26:02,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:26:02,237 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:26:02,237 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:26:02,247 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:26:02,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:26:02,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:26:02,248 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:26:02,248 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:26:02,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:26:02,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:26:02,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:26:02,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:26:02,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:26:02,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:26:02,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:26:02,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:26:02,250 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:26:02,250 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:26:02,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:26:02,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:26:02,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-08-27 06:26:02,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:26:02,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:26:02,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:26:02,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:26:02,610 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:26:02,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-08-27 06:26:02,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9217339b5/eac0fba62ec64c2aa947685396212941/FLAG7d53377f8 [2021-08-27 06:26:03,260 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:26:03,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-08-27 06:26:03,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9217339b5/eac0fba62ec64c2aa947685396212941/FLAG7d53377f8 [2021-08-27 06:26:03,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9217339b5/eac0fba62ec64c2aa947685396212941 [2021-08-27 06:26:03,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:26:03,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:26:03,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:26:03,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:26:03,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:26:03,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:26:03" (1/1) ... [2021-08-27 06:26:03,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26175893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:03, skipping insertion in model container [2021-08-27 06:26:03,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:26:03" (1/1) ... [2021-08-27 06:26:03,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:26:03,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:26:03,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:26:04,016 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:26:04,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:26:04,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:26:04,104 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:26:04,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:26:04,210 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:26:04,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04 WrapperNode [2021-08-27 06:26:04,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:26:04,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:26:04,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:26:04,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:26:04,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:26:04,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:26:04,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:26:04,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:26:04,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (1/1) ... [2021-08-27 06:26:04,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:26:04,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:26:04,387 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 06:26:04,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:26:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:26:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:26:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:26:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:26:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:26:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:26:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:26:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:26:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:26:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:26:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:26:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:26:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:26:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:26:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:26:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:26:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:26:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:26:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:26:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:26:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:26:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:26:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:26:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:26:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_9 [2021-08-27 06:26:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_9 [2021-08-27 06:26:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:26:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:26:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:26:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:26:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:26:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:26:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:26:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:26:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:26:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:26:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:26:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:26:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:26:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:26:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:26:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:26:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:26:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:26:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:26:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:26:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:26:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:26:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:26:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:26:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:26:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:26:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:26:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:26:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:26:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:26:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:26:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:26:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:26:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:26:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:26:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:26:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:26:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:26:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:26:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:26:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:26:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:26:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:26:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:26:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:26:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:26:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:26:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:26:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:26:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:26:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:26:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:26:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:26:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:26:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:26:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:26:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:26:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:26:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:26:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:26:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:26:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:26:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:26:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:26:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:26:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:26:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:26:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:26:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:26:04,475 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:26:04,476 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:26:04,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:26:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:26:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:26:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:26:04,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:26:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:26:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure probe_9 [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_9 [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:26:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:26:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:26:04,984 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:26:05,250 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:26:05,523 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:26:05,524 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:26:05,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:05 BoogieIcfgContainer [2021-08-27 06:26:05,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:26:05,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:26:05,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:26:05,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:26:05,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:26:03" (1/3) ... [2021-08-27 06:26:05,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b823629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:26:05, skipping insertion in model container [2021-08-27 06:26:05,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:04" (2/3) ... [2021-08-27 06:26:05,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b823629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:26:05, skipping insertion in model container [2021-08-27 06:26:05,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:05" (3/3) ... [2021-08-27 06:26:05,537 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9.i [2021-08-27 06:26:05,542 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:26:05,543 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:26:05,589 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:26:05,595 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 06:26:05,595 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:26:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-08-27 06:26:05,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:26:05,613 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:05,614 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:05,614 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:05,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:05,619 INFO L82 PathProgramCache]: Analyzing trace with hash 426051374, now seen corresponding path program 1 times [2021-08-27 06:26:05,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:05,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747386788] [2021-08-27 06:26:05,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:05,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:05,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:05,632 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 06:26:05,651 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 06:26:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:05,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:26:05,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:05,996 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 06:26:05,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:06,131 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 06:26:06,132 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:06,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747386788] [2021-08-27 06:26:06,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747386788] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:06,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:06,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:26:06,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930854306] [2021-08-27 06:26:06,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:26:06,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:06,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:26:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:06,155 INFO L87 Difference]: Start difference. First operand has 105 states, 58 states have (on average 1.5) internal successors, (87), 80 states have internal predecessors, (87), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:26:06,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:06,211 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-08-27 06:26:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:26:06,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-27 06:26:06,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:06,219 INFO L225 Difference]: With dead ends: 34 [2021-08-27 06:26:06,219 INFO L226 Difference]: Without dead ends: 31 [2021-08-27 06:26:06,220 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 35.2ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:26:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-27 06:26:06,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-08-27 06:26:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:26:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-08-27 06:26:06,248 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2021-08-27 06:26:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:06,248 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-08-27 06:26:06,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:26:06,248 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-08-27 06:26:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:26:06,249 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:06,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:06,266 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 06:26:06,460 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 06:26:06,461 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:06,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:06,461 INFO L82 PathProgramCache]: Analyzing trace with hash 322691135, now seen corresponding path program 1 times [2021-08-27 06:26:06,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:06,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274532783] [2021-08-27 06:26:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:06,462 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:06,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:06,465 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 06:26:06,496 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 06:26:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:06,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:26:06,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:06,909 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 06:26:06,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:07,100 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 06:26:07,100 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:07,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274532783] [2021-08-27 06:26:07,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274532783] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:07,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:07,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-08-27 06:26:07,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893830730] [2021-08-27 06:26:07,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:26:07,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:07,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:26:07,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:26:07,106 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:26:07,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:07,331 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2021-08-27 06:26:07,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:26:07,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 21 [2021-08-27 06:26:07,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:07,332 INFO L225 Difference]: With dead ends: 45 [2021-08-27 06:26:07,332 INFO L226 Difference]: Without dead ends: 45 [2021-08-27 06:26:07,333 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 141.6ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:26:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-08-27 06:26:07,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2021-08-27 06:26:07,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 06:26:07,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-08-27 06:26:07,338 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 21 [2021-08-27 06:26:07,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:07,339 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-08-27 06:26:07,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:26:07,339 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-08-27 06:26:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:26:07,340 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:07,340 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:07,353 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 06:26:07,548 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 06:26:07,548 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:07,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:07,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1413491024, now seen corresponding path program 1 times [2021-08-27 06:26:07,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:07,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671382656] [2021-08-27 06:26:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:07,550 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:07,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:07,555 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 06:26:07,557 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 06:26:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:07,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:26:07,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:07,961 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 06:26:08,044 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 06:26:08,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:08,188 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 06:26:08,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:08,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671382656] [2021-08-27 06:26:08,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671382656] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:08,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:08,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:26:08,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377072665] [2021-08-27 06:26:08,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:26:08,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:08,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:26:08,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:08,191 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:26:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:08,244 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2021-08-27 06:26:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:26:08,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-08-27 06:26:08,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:08,247 INFO L225 Difference]: With dead ends: 43 [2021-08-27 06:26:08,247 INFO L226 Difference]: Without dead ends: 43 [2021-08-27 06:26:08,247 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-27 06:26:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-08-27 06:26:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-27 06:26:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-08-27 06:26:08,254 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 22 [2021-08-27 06:26:08,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:08,254 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-08-27 06:26:08,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:26:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-08-27 06:26:08,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:26:08,255 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:08,255 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:08,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-27 06:26:08,463 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 06:26:08,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1120088017, now seen corresponding path program 1 times [2021-08-27 06:26:08,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:08,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490825474] [2021-08-27 06:26:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:08,465 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:08,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:08,468 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 06:26:08,469 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 06:26:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:08,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:26:08,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:08,762 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 06:26:08,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:08,894 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 06:26:08,894 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:08,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490825474] [2021-08-27 06:26:08,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490825474] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:08,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:08,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:26:08,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587184608] [2021-08-27 06:26:08,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:26:08,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:08,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:26:08,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:08,896 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:26:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:08,959 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2021-08-27 06:26:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:26:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-08-27 06:26:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:08,961 INFO L225 Difference]: With dead ends: 44 [2021-08-27 06:26:08,961 INFO L226 Difference]: Without dead ends: 44 [2021-08-27 06:26:08,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.8ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:26:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-08-27 06:26:08,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2021-08-27 06:26:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 06:26:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-08-27 06:26:08,966 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 22 [2021-08-27 06:26:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:08,966 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-08-27 06:26:08,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:26:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-08-27 06:26:08,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:26:08,967 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:08,967 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:08,978 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 06:26:09,173 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 06:26:09,173 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:09,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:09,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1413668411, now seen corresponding path program 1 times [2021-08-27 06:26:09,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:09,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187802459] [2021-08-27 06:26:09,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:09,174 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:09,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:09,186 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 06:26:09,191 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 06:26:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:09,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:26:09,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:09,456 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 06:26:09,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:26:09,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:09,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187802459] [2021-08-27 06:26:09,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187802459] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:09,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:09,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:26:09,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320999340] [2021-08-27 06:26:09,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:26:09,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:09,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:26:09,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:09,579 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:26:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:09,590 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2021-08-27 06:26:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:26:09,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-08-27 06:26:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:09,591 INFO L225 Difference]: With dead ends: 40 [2021-08-27 06:26:09,592 INFO L226 Difference]: Without dead ends: 40 [2021-08-27 06:26:09,592 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:09,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-08-27 06:26:09,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2021-08-27 06:26:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:26:09,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2021-08-27 06:26:09,597 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 22 [2021-08-27 06:26:09,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:09,597 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2021-08-27 06:26:09,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:26:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-08-27 06:26:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:26:09,598 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:09,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:09,610 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 06:26:09,808 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 06:26:09,808 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:09,808 INFO L82 PathProgramCache]: Analyzing trace with hash -687189059, now seen corresponding path program 1 times [2021-08-27 06:26:09,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:09,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083919962] [2021-08-27 06:26:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:09,809 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:09,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:09,810 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 06:26:09,811 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 06:26:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:09,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:26:09,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:10,065 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 06:26:10,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:10,223 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 06:26:10,224 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:10,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083919962] [2021-08-27 06:26:10,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083919962] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:10,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:10,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:26:10,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116943129] [2021-08-27 06:26:10,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:26:10,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:10,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:26:10,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:26:10,226 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:26:10,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:10,261 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2021-08-27 06:26:10,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:26:10,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2021-08-27 06:26:10,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:10,264 INFO L225 Difference]: With dead ends: 42 [2021-08-27 06:26:10,264 INFO L226 Difference]: Without dead ends: 38 [2021-08-27 06:26:10,265 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:26:10,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-27 06:26:10,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2021-08-27 06:26:10,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 06:26:10,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-08-27 06:26:10,276 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 22 [2021-08-27 06:26:10,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:10,277 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-08-27 06:26:10,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:26:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-08-27 06:26:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 06:26:10,278 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:10,278 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:10,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-08-27 06:26:10,485 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 06:26:10,486 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:10,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:10,486 INFO L82 PathProgramCache]: Analyzing trace with hash -2013122506, now seen corresponding path program 1 times [2021-08-27 06:26:10,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:10,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371522212] [2021-08-27 06:26:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:10,487 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:10,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:10,488 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 06:26:10,494 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 06:26:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:10,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:26:10,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:10,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:26:11,017 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 06:26:11,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:15,244 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:15,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371522212] [2021-08-27 06:26:15,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:26:15,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1283199134] [2021-08-27 06:26:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:15,245 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:26:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:26:15,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:26:15,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-08-27 06:26:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:15,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:26:15,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:15,747 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:26:15,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-08-27 06:26:18,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:26:20,213 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 06:26:20,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:24,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:26:24,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361285877] [2021-08-27 06:26:24,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:24,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:26:24,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:26:24,565 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:26:24,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-27 06:26:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:24,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 06:26:24,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:24,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-08-27 06:26:25,069 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 06:26:25,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:29,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:26:29,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:29,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:26:29,245 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:26:29,245 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:26:29,249 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:26:29,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,252 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,253 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:26:29,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:26:29,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:26:29,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:26:29,254 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,255 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:26:29,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:26:29,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,258 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:26:29,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:26:29,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:29,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:29,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:26:29,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:26:29,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,263 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_9Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:29,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-08-27 06:26:29,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-27 06:26:29,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:26:29,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:26:29,873 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:26:29,876 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:26:29,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:26:29 BoogieIcfgContainer [2021-08-27 06:26:29,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:26:29,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:26:29,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:26:29,882 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:26:29,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:05" (3/4) ... [2021-08-27 06:26:29,885 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:26:29,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:26:29,886 INFO L168 Benchmark]: Toolchain (without parser) took 26345.01 ms. Allocated memory was 62.9 MB in the beginning and 163.6 MB in the end (delta: 100.7 MB). Free memory was 41.0 MB in the beginning and 85.8 MB in the end (delta: -44.8 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:29,887 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:26:29,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.74 ms. Allocated memory is still 62.9 MB. Free memory was 40.9 MB in the beginning and 27.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:29,887 INFO L168 Benchmark]: Boogie Preprocessor took 134.42 ms. Allocated memory is still 62.9 MB. Free memory was 27.4 MB in the beginning and 43.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:29,888 INFO L168 Benchmark]: RCFGBuilder took 1181.06 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 43.6 MB in the beginning and 50.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:29,888 INFO L168 Benchmark]: TraceAbstraction took 24350.71 ms. Allocated memory was 77.6 MB in the beginning and 163.6 MB in the end (delta: 86.0 MB). Free memory was 49.5 MB in the beginning and 86.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:29,888 INFO L168 Benchmark]: Witness Printer took 3.36 ms. Allocated memory is still 163.6 MB. Free memory is still 85.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:26:29,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 669.74 ms. Allocated memory is still 62.9 MB. Free memory was 40.9 MB in the beginning and 27.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.42 ms. Allocated memory is still 62.9 MB. Free memory was 27.4 MB in the beginning and 43.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1181.06 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 43.6 MB in the beginning and 50.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24350.71 ms. Allocated memory was 77.6 MB in the beginning and 163.6 MB in the end (delta: 86.0 MB). Free memory was 49.5 MB in the beginning and 86.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.36 ms. Allocated memory is still 163.6 MB. Free memory is still 85.8 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.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: 775]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 775. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a9; [L776] CALL entry_point() [L769] CALL, EXPR probe_9() [L759] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) [L759] a9 = (int *)ldv_malloc(sizeof(int)) [L760] COND TRUE \read(*a9) [L761] return 0; [L769] RET, EXPR probe_9() [L769] int ret = probe_9(); [L770] COND TRUE ret==0 [L771] CALL disconnect_9() [L766] free(a9) [L766] free(a9) [L766] free(a9) [L771] RET disconnect_9() [L773] a9 = 0 [L776] RET entry_point() - 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: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 345 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 24283.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 12.9ms, AutomataDifference: 483.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 194 SDtfs, 100 SDslu, 367 SDs, 0 SdLazy, 175 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 220.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 259.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 47.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 31 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 69.7ms SsaConstructionTime, 162.1ms SatisfiabilityAnalysisTime, 1712.4ms InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 713 SizeOfPredicates, 1 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:26:29,925 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...