./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.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_test22_3-2.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 e977fbeb632c2e5a16902a6c2250cf608217c650 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Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.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 e977fbeb632c2e5a16902a6c2250cf608217c650 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 06:19:25,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:19:25,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:19:25,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:19:25,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:19:25,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:19:25,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:19:25,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:19:25,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:19:25,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:19:25,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:19:25,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:19:25,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:19:25,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:19:25,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:19:25,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:19:25,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:19:25,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:19:25,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:19:25,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:19:25,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:19:25,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:19:25,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:19:25,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:19:25,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:19:25,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:19:25,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:19:25,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:19:25,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:19:25,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:19:25,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:19:25,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:19:25,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:19:25,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:19:25,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:19:25,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:19:25,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:19:25,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:19:25,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:19:25,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:19:25,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:19:25,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:19:25,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:19:25,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:19:25,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:19:25,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:19:25,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:19:25,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:19:25,525 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:19:25,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:19:25,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:19:25,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:19:25,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:19:25,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:19:25,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:19:25,527 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:19:25,527 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:19:25,527 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:19:25,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:19:25,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:19:25,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:19:25,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:19:25,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:19:25,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:19:25,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:19:25,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:19:25,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:19:25,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:19:25,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:19:25,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:19:25,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:19:25,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e977fbeb632c2e5a16902a6c2250cf608217c650 [2021-08-27 06:19:25,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:19:25,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:19:25,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:19:25,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:19:25,830 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:19:25,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-08-27 06:19:25,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53cfa9dea/6d9571c78e5940749799fc5049afa998/FLAGa5dbc4c8f [2021-08-27 06:19:26,328 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:19:26,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-08-27 06:19:26,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53cfa9dea/6d9571c78e5940749799fc5049afa998/FLAGa5dbc4c8f [2021-08-27 06:19:26,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53cfa9dea/6d9571c78e5940749799fc5049afa998 [2021-08-27 06:19:26,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:19:26,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:19:26,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:26,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:19:26,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:19:26,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:26" (1/1) ... [2021-08-27 06:19:26,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b907a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:26, skipping insertion in model container [2021-08-27 06:19:26,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:26" (1/1) ... [2021-08-27 06:19:26,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:19:26,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:19:26,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:26,708 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 06:19:26,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@279ad6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:26, skipping insertion in model container [2021-08-27 06:19:26,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:26,709 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:19:26,711 INFO L168 Benchmark]: Toolchain (without parser) took 349.88 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 37.6 MB in the beginning and 68.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:26,712 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:19:26,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.89 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 37.4 MB in the beginning and 68.0 MB in the end (delta: -30.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:26,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.89 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 37.4 MB in the beginning and 68.0 MB in the end (delta: -30.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:19:28,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:19:28,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:19:28,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:19:28,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:19:28,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:19:28,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:19:28,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:19:28,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:19:28,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:19:28,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:19:28,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:19:28,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:19:28,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:19:28,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:19:28,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:19:28,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:19:28,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:19:28,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:19:28,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:19:28,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:19:28,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:19:28,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:19:28,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:19:28,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:19:28,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:19:28,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:19:28,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:19:28,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:19:28,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:19:28,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:19:28,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:19:28,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:19:28,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:19:28,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:19:28,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:19:28,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:19:28,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:19:28,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:19:28,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:19:28,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:19:28,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:19:28,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:19:28,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:19:28,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:19:28,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:19:28,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:19:28,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:19:28,483 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:19:28,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:19:28,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:19:28,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:19:28,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:19:28,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:19:28,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:19:28,485 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:19:28,485 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:19:28,485 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:19:28,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:19:28,494 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:19:28,494 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:19:28,495 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:19:28,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:19:28,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:19:28,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:19:28,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:19:28,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:19:28,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:19:28,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:19:28,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:19:28,496 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:19:28,496 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:19:28,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:19:28,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:19:28,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e977fbeb632c2e5a16902a6c2250cf608217c650 [2021-08-27 06:19:28,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:19:28,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:19:28,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:19:28,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:19:28,806 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:19:28,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-08-27 06:19:28,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e271ba45/227d436f355846cbbeb89741d4b4b0df/FLAGc021c3299 [2021-08-27 06:19:29,244 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:19:29,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2021-08-27 06:19:29,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e271ba45/227d436f355846cbbeb89741d4b4b0df/FLAGc021c3299 [2021-08-27 06:19:29,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e271ba45/227d436f355846cbbeb89741d4b4b0df [2021-08-27 06:19:29,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:19:29,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:19:29,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:29,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:19:29,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:19:29,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325a960d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29, skipping insertion in model container [2021-08-27 06:19:29,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:19:29,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:19:29,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:29,644 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:19:29,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:19:29,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:29,686 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:19:29,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:19:29,783 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:19:29,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29 WrapperNode [2021-08-27 06:19:29,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:19:29,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:19:29,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:19:29,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:19:29,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:19:29,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:19:29,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:19:29,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:19:29,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (1/1) ... [2021-08-27 06:19:29,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:19:29,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:19:29,931 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 06:19:29,934 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 06:19:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:19:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:19:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:19:29,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:19:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:19:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:19:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:19:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:19:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:19:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:19:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:19:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:19:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:19:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:19:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:19:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:19:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:19:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:19:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:19:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:19:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:19:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:19:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:19:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:19:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:19:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:19:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:19:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:19:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:19:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:19:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:19:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:19:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:19:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:19:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:19:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:19:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:19:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:19:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:19:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:19:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:19:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:19:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:19:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:19:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:19:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:19:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:19:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:19:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:19:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:19:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:19:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:19:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:19:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:19:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:19:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:19:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:19:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:19:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:19:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:19:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:19:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:19:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:19:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:19:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:19:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:19:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:19:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:19:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:19:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:19:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:19:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:19:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:19:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:19:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:19:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:19:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:19:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:19:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:19:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:19:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:19:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:19:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:19:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:19:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:19:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:19:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:19:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:19:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:19:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:19:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:19:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:19:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:19:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:19:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:19:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:19:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:19:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:19:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:19:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:19:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:19:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:19:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:19:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:19:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:19:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:19:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:19:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:19:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:19:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:19:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:19:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:19:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:19:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:19:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:19:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:19:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:19:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:19:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:19:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:19:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:19:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:19:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:19:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:19:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:19:30,448 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:19:30,643 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:19:30,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:19:30,925 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:19:30,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:19:30 BoogieIcfgContainer [2021-08-27 06:19:30,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:19:30,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:19:30,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:19:30,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:19:30,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:19:29" (1/3) ... [2021-08-27 06:19:30,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74298439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:19:30, skipping insertion in model container [2021-08-27 06:19:30,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:19:29" (2/3) ... [2021-08-27 06:19:30,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74298439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:19:30, skipping insertion in model container [2021-08-27 06:19:30,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:19:30" (3/3) ... [2021-08-27 06:19:30,936 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-2.i [2021-08-27 06:19:30,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:19:30,941 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-27 06:19:30,984 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:19:30,989 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 06:19:30,990 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-27 06:19:31,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-08-27 06:19:31,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:19:31,014 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:31,015 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:31,015 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:31,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:31,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1484999723, now seen corresponding path program 1 times [2021-08-27 06:19:31,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:31,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347923420] [2021-08-27 06:19:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:31,031 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:31,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:31,033 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 06:19:31,071 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 06:19:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:31,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:19:31,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:31,347 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 06:19:31,396 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 06:19:31,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:31,489 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:31,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347923420] [2021-08-27 06:19:31,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347923420] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:31,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:31,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:19:31,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752490688] [2021-08-27 06:19:31,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:31,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:31,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:31,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:31,511 INFO L87 Difference]: Start difference. First operand has 151 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:19:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:31,639 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-08-27 06:19:31,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:31,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:19:31,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:31,646 INFO L225 Difference]: With dead ends: 133 [2021-08-27 06:19:31,646 INFO L226 Difference]: Without dead ends: 130 [2021-08-27 06:19:31,647 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-08-27 06:19:31,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 124. [2021-08-27 06:19:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 90 states have internal predecessors, (97), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-27 06:19:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2021-08-27 06:19:31,673 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 17 [2021-08-27 06:19:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:31,674 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2021-08-27 06:19:31,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:19:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2021-08-27 06:19:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:19:31,675 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:31,675 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:31,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-27 06:19:31,906 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 06:19:31,907 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:31,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:31,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1484999724, now seen corresponding path program 1 times [2021-08-27 06:19:31,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:31,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850899973] [2021-08-27 06:19:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:31,908 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:31,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:31,928 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 06:19:31,929 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 06:19:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:32,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:32,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:32,128 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 06:19:32,189 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 06:19:32,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:32,509 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 06:19:32,509 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:32,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850899973] [2021-08-27 06:19:32,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850899973] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:32,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:32,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-27 06:19:32,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264261614] [2021-08-27 06:19:32,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:19:32,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:32,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:19:32,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:19:32,518 INFO L87 Difference]: Start difference. First operand 124 states and 135 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:32,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:32,946 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2021-08-27 06:19:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:19:32,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:19:32,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:32,951 INFO L225 Difference]: With dead ends: 129 [2021-08-27 06:19:32,951 INFO L226 Difference]: Without dead ends: 129 [2021-08-27 06:19:32,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.6ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:32,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-08-27 06:19:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 124. [2021-08-27 06:19:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 68 states have (on average 1.411764705882353) internal successors, (96), 90 states have internal predecessors, (96), 19 states have call successors, (19), 17 states have call predecessors, (19), 17 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-27 06:19:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2021-08-27 06:19:32,969 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 17 [2021-08-27 06:19:32,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:32,970 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2021-08-27 06:19:32,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2021-08-27 06:19:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:19:32,971 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:32,971 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:32,978 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 06:19:33,178 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 06:19:33,179 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:33,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1513628874, now seen corresponding path program 1 times [2021-08-27 06:19:33,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:33,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974472615] [2021-08-27 06:19:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:33,183 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:33,185 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 06:19:33,189 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 06:19:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:33,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:19:33,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:33,423 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 06:19:33,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:33,511 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 06:19:33,511 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:33,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974472615] [2021-08-27 06:19:33,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974472615] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:33,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:33,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:19:33,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187043804] [2021-08-27 06:19:33,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:33,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:33,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:33,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:33,513 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:19:33,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:33,527 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2021-08-27 06:19:33,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:33,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:19:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:33,531 INFO L225 Difference]: With dead ends: 123 [2021-08-27 06:19:33,531 INFO L226 Difference]: Without dead ends: 123 [2021-08-27 06:19:33,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-08-27 06:19:33,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-08-27 06:19:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 87 states have internal predecessors, (93), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-27 06:19:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2021-08-27 06:19:33,536 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 17 [2021-08-27 06:19:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:33,536 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2021-08-27 06:19:33,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:19:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2021-08-27 06:19:33,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:19:33,537 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:33,537 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, 1] [2021-08-27 06:19:33,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:33,744 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 06:19:33,745 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:33,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:33,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1578542280, now seen corresponding path program 1 times [2021-08-27 06:19:33,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:33,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065634345] [2021-08-27 06:19:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:33,746 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:33,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:33,747 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 06:19:33,748 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 06:19:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:33,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:19:33,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:34,005 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 06:19:34,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:34,088 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 06:19:34,088 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:34,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065634345] [2021-08-27 06:19:34,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065634345] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:34,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:34,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:19:34,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261122047] [2021-08-27 06:19:34,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:34,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:34,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:34,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:34,090 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:34,102 INFO L93 Difference]: Finished difference Result 123 states and 130 transitions. [2021-08-27 06:19:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:34,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-08-27 06:19:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:34,104 INFO L225 Difference]: With dead ends: 123 [2021-08-27 06:19:34,104 INFO L226 Difference]: Without dead ends: 123 [2021-08-27 06:19:34,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:34,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-08-27 06:19:34,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-08-27 06:19:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 67 states have (on average 1.373134328358209) internal successors, (92), 87 states have internal predecessors, (92), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-27 06:19:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 128 transitions. [2021-08-27 06:19:34,108 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 128 transitions. Word has length 29 [2021-08-27 06:19:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:34,108 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 128 transitions. [2021-08-27 06:19:34,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:34,108 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 128 transitions. [2021-08-27 06:19:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:19:34,109 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:34,109 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, 1] [2021-08-27 06:19:34,122 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 06:19:34,316 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 06:19:34,317 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:34,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:34,317 INFO L82 PathProgramCache]: Analyzing trace with hash 581469927, now seen corresponding path program 1 times [2021-08-27 06:19:34,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:34,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428795353] [2021-08-27 06:19:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:34,318 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:34,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:34,318 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 06:19:34,320 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 06:19:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:34,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:19:34,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:34,619 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 06:19:34,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:34,751 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 06:19:34,752 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:34,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428795353] [2021-08-27 06:19:34,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428795353] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:34,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:34,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:19:34,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212230664] [2021-08-27 06:19:34,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:19:34,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:34,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:19:34,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:19:34,753 INFO L87 Difference]: Start difference. First operand 121 states and 128 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:34,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:34,792 INFO L93 Difference]: Finished difference Result 134 states and 143 transitions. [2021-08-27 06:19:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:19:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-08-27 06:19:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:34,793 INFO L225 Difference]: With dead ends: 134 [2021-08-27 06:19:34,793 INFO L226 Difference]: Without dead ends: 134 [2021-08-27 06:19:34,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.5ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:19:34,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-27 06:19:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2021-08-27 06:19:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 93 states have internal predecessors, (97), 20 states have call successors, (20), 18 states have call predecessors, (20), 19 states have return successors, (21), 20 states have call predecessors, (21), 19 states have call successors, (21) [2021-08-27 06:19:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 138 transitions. [2021-08-27 06:19:34,798 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 138 transitions. Word has length 29 [2021-08-27 06:19:34,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:34,798 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 138 transitions. [2021-08-27 06:19:34,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:34,798 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 138 transitions. [2021-08-27 06:19:34,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 06:19:34,799 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:34,799 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, 1, 1, 1, 1] [2021-08-27 06:19:34,808 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 06:19:35,006 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 06:19:35,007 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:35,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1899216601, now seen corresponding path program 1 times [2021-08-27 06:19:35,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:35,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152800878] [2021-08-27 06:19:35,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:35,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:35,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:35,009 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 06:19:35,010 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 06:19:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:35,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:19:35,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:35,298 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 06:19:35,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:35,405 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 06:19:35,405 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:35,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152800878] [2021-08-27 06:19:35,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152800878] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:35,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:35,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:19:35,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341116430] [2021-08-27 06:19:35,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:19:35,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:35,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:19:35,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:19:35,407 INFO L87 Difference]: Start difference. First operand 130 states and 138 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:19:35,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:35,436 INFO L93 Difference]: Finished difference Result 136 states and 144 transitions. [2021-08-27 06:19:35,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:19:35,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-08-27 06:19:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:35,438 INFO L225 Difference]: With dead ends: 136 [2021-08-27 06:19:35,438 INFO L226 Difference]: Without dead ends: 132 [2021-08-27 06:19:35,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.5ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:19:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-08-27 06:19:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-08-27 06:19:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 74 states have (on average 1.337837837837838) internal successors, (99), 95 states have internal predecessors, (99), 20 states have call successors, (20), 18 states have call predecessors, (20), 19 states have return successors, (21), 20 states have call predecessors, (21), 19 states have call successors, (21) [2021-08-27 06:19:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 140 transitions. [2021-08-27 06:19:35,442 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 140 transitions. Word has length 32 [2021-08-27 06:19:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:35,443 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 140 transitions. [2021-08-27 06:19:35,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:19:35,443 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 140 transitions. [2021-08-27 06:19:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 06:19:35,443 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:35,444 INFO L512 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1] [2021-08-27 06:19:35,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:35,651 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 06:19:35,651 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:35,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2034413241, now seen corresponding path program 1 times [2021-08-27 06:19:35,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:35,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320862125] [2021-08-27 06:19:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:35,653 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:35,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:35,655 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 06:19:35,656 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 06:19:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:35,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:19:35,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:35,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:35,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:36,152 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:36,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320862125] [2021-08-27 06:19:36,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320862125] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:36,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:36,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 06:19:36,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514682823] [2021-08-27 06:19:36,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:19:36,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:36,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:19:36,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:19:36,154 INFO L87 Difference]: Start difference. First operand 132 states and 140 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:19:36,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:36,279 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2021-08-27 06:19:36,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:19:36,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-08-27 06:19:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:36,280 INFO L225 Difference]: With dead ends: 140 [2021-08-27 06:19:36,280 INFO L226 Difference]: Without dead ends: 136 [2021-08-27 06:19:36,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 132.6ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-08-27 06:19:36,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-08-27 06:19:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 99 states have internal predecessors, (103), 20 states have call successors, (20), 18 states have call predecessors, (20), 19 states have return successors, (21), 20 states have call predecessors, (21), 19 states have call successors, (21) [2021-08-27 06:19:36,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 144 transitions. [2021-08-27 06:19:36,284 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 144 transitions. Word has length 34 [2021-08-27 06:19:36,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:36,285 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 144 transitions. [2021-08-27 06:19:36,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:19:36,285 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 144 transitions. [2021-08-27 06:19:36,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 06:19:36,286 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:36,286 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:36,293 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 06:19:36,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:36,493 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:36,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:36,494 INFO L82 PathProgramCache]: Analyzing trace with hash 76391075, now seen corresponding path program 1 times [2021-08-27 06:19:36,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:36,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901100262] [2021-08-27 06:19:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:36,494 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:36,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:36,495 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:36,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:19:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:36,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 06:19:36,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:19:36,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:19:37,063 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:37,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901100262] [2021-08-27 06:19:37,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901100262] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:37,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:37,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:19:37,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983764654] [2021-08-27 06:19:37,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:19:37,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:37,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:19:37,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:19:37,065 INFO L87 Difference]: Start difference. First operand 136 states and 144 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:19:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:37,198 INFO L93 Difference]: Finished difference Result 147 states and 155 transitions. [2021-08-27 06:19:37,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:19:37,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 32 [2021-08-27 06:19:37,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:37,199 INFO L225 Difference]: With dead ends: 147 [2021-08-27 06:19:37,200 INFO L226 Difference]: Without dead ends: 131 [2021-08-27 06:19:37,200 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 06:19:37,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-27 06:19:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2021-08-27 06:19:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 90 states have internal predecessors, (94), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 129 transitions. [2021-08-27 06:19:37,203 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 129 transitions. Word has length 32 [2021-08-27 06:19:37,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:37,203 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 129 transitions. [2021-08-27 06:19:37,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:19:37,203 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 129 transitions. [2021-08-27 06:19:37,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:19:37,204 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:37,204 INFO L512 BasicCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1] [2021-08-27 06:19:37,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-08-27 06:19:37,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:37,411 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:37,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:37,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1051272825, now seen corresponding path program 2 times [2021-08-27 06:19:37,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:37,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221356731] [2021-08-27 06:19:37,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:37,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:37,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:37,413 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:37,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:19:37,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:37,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:37,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:19:37,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:37,738 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 06:19:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:19:38,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:19:38,295 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:38,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221356731] [2021-08-27 06:19:38,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221356731] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:38,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:38,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:19:38,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631786206] [2021-08-27 06:19:38,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:19:38,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:38,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:19:38,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:19:38,296 INFO L87 Difference]: Start difference. First operand 123 states and 129 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:19:38,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:38,846 INFO L93 Difference]: Finished difference Result 146 states and 160 transitions. [2021-08-27 06:19:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:19:38,846 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-08-27 06:19:38,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:38,849 INFO L225 Difference]: With dead ends: 146 [2021-08-27 06:19:38,849 INFO L226 Difference]: Without dead ends: 146 [2021-08-27 06:19:38,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 227.7ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:19:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-08-27 06:19:38,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2021-08-27 06:19:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 89 states have internal predecessors, (93), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 128 transitions. [2021-08-27 06:19:38,857 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 128 transitions. Word has length 38 [2021-08-27 06:19:38,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:38,857 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 128 transitions. [2021-08-27 06:19:38,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:19:38,858 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 128 transitions. [2021-08-27 06:19:38,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:19:38,860 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:38,860 INFO L512 BasicCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1] [2021-08-27 06:19:38,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:39,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:39,067 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:39,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:39,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1051272824, now seen corresponding path program 1 times [2021-08-27 06:19:39,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:39,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575763541] [2021-08-27 06:19:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:39,069 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:39,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:39,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:39,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 06:19:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:39,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:19:39,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:39,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:39,864 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:39,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575763541] [2021-08-27 06:19:39,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575763541] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:39,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:39,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-27 06:19:39,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784176725] [2021-08-27 06:19:39,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:19:39,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:39,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:19:39,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-08-27 06:19:39,868 INFO L87 Difference]: Start difference. First operand 122 states and 128 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:19:40,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:40,399 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2021-08-27 06:19:40,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:19:40,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-08-27 06:19:40,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:40,405 INFO L225 Difference]: With dead ends: 134 [2021-08-27 06:19:40,405 INFO L226 Difference]: Without dead ends: 130 [2021-08-27 06:19:40,405 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 574.9ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:19:40,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-08-27 06:19:40,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-08-27 06:19:40,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 78 states have (on average 1.294871794871795) internal successors, (101), 97 states have internal predecessors, (101), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 136 transitions. [2021-08-27 06:19:40,409 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 136 transitions. Word has length 38 [2021-08-27 06:19:40,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:40,411 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 136 transitions. [2021-08-27 06:19:40,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:19:40,411 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 136 transitions. [2021-08-27 06:19:40,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 06:19:40,412 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:40,412 INFO L512 BasicCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1] [2021-08-27 06:19:40,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:40,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:40,620 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:40,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2061530616, now seen corresponding path program 2 times [2021-08-27 06:19:40,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:40,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514996681] [2021-08-27 06:19:40,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:40,621 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:40,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:40,622 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:40,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-27 06:19:40,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:40,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:40,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:40,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:41,001 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 06:19:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:19:41,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:19:42,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:42,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514996681] [2021-08-27 06:19:42,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514996681] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:42,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:42,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:19:42,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450717247] [2021-08-27 06:19:42,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:19:42,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:42,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:19:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:19:42,219 INFO L87 Difference]: Start difference. First operand 130 states and 136 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:19:43,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:43,589 INFO L93 Difference]: Finished difference Result 129 states and 135 transitions. [2021-08-27 06:19:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:19:43,589 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-08-27 06:19:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:43,591 INFO L225 Difference]: With dead ends: 129 [2021-08-27 06:19:43,591 INFO L226 Difference]: Without dead ends: 129 [2021-08-27 06:19:43,592 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 713.4ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:19:43,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-08-27 06:19:43,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-08-27 06:19:43,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 96 states have internal predecessors, (100), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:43,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2021-08-27 06:19:43,595 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 46 [2021-08-27 06:19:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:43,596 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2021-08-27 06:19:43,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:19:43,596 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2021-08-27 06:19:43,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 06:19:43,599 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:43,599 INFO L512 BasicCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:43,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:43,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:43,809 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:43,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1631731192, now seen corresponding path program 1 times [2021-08-27 06:19:43,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:43,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923431445] [2021-08-27 06:19:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:43,810 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:43,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:43,811 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:43,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-27 06:19:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:44,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:19:44,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:44,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:45,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:45,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923431445] [2021-08-27 06:19:45,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923431445] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:45,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:45,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-08-27 06:19:45,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820290618] [2021-08-27 06:19:45,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-27 06:19:45,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:45,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-27 06:19:45,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:19:45,268 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:19:45,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:45,740 INFO L93 Difference]: Finished difference Result 135 states and 141 transitions. [2021-08-27 06:19:45,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:19:45,741 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-08-27 06:19:45,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:45,742 INFO L225 Difference]: With dead ends: 135 [2021-08-27 06:19:45,742 INFO L226 Difference]: Without dead ends: 131 [2021-08-27 06:19:45,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 680.4ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 06:19:45,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-27 06:19:45,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-08-27 06:19:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 80 states have (on average 1.275) internal successors, (102), 98 states have internal predecessors, (102), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 137 transitions. [2021-08-27 06:19:45,747 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 137 transitions. Word has length 51 [2021-08-27 06:19:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:45,747 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 137 transitions. [2021-08-27 06:19:45,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:19:45,747 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 137 transitions. [2021-08-27 06:19:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:19:45,748 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:45,748 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:45,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:45,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:45,957 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:45,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:45,958 INFO L82 PathProgramCache]: Analyzing trace with hash -346949160, now seen corresponding path program 2 times [2021-08-27 06:19:45,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:45,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297699672] [2021-08-27 06:19:45,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:19:45,958 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:45,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:45,959 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:45,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-27 06:19:46,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:19:46,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:19:46,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:19:46,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:46,372 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 06:19:46,736 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:46,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:46,922 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:46,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297699672] [2021-08-27 06:19:46,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297699672] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:46,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:46,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:19:46,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178468312] [2021-08-27 06:19:46,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:19:46,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:46,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:19:46,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:19:46,924 INFO L87 Difference]: Start difference. First operand 131 states and 137 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:19:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:47,439 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2021-08-27 06:19:47,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:19:47,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-08-27 06:19:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:47,441 INFO L225 Difference]: With dead ends: 153 [2021-08-27 06:19:47,441 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 06:19:47,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 211.4ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:19:47,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 06:19:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 129. [2021-08-27 06:19:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.25) internal successors, (100), 96 states have internal predecessors, (100), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2021-08-27 06:19:47,444 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 53 [2021-08-27 06:19:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:47,445 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2021-08-27 06:19:47,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:19:47,445 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2021-08-27 06:19:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:19:47,445 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:47,445 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:47,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:47,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:47,654 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:47,654 INFO L82 PathProgramCache]: Analyzing trace with hash -346949159, now seen corresponding path program 1 times [2021-08-27 06:19:47,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:47,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772564625] [2021-08-27 06:19:47,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:47,655 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:47,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:47,656 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:47,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-27 06:19:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:48,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:48,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:48,112 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 06:19:48,502 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:48,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:49,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:49,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772564625] [2021-08-27 06:19:49,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772564625] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:49,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:49,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:19:49,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134893536] [2021-08-27 06:19:49,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:19:49,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:49,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:19:49,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:19:49,264 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:19:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:50,768 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2021-08-27 06:19:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:19:50,769 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-08-27 06:19:50,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:50,769 INFO L225 Difference]: With dead ends: 127 [2021-08-27 06:19:50,769 INFO L226 Difference]: Without dead ends: 127 [2021-08-27 06:19:50,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 780.6ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:19:50,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-27 06:19:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-08-27 06:19:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.225) internal successors, (98), 94 states have internal predecessors, (98), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 133 transitions. [2021-08-27 06:19:50,772 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 133 transitions. Word has length 53 [2021-08-27 06:19:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:50,772 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 133 transitions. [2021-08-27 06:19:50,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:19:50,772 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 133 transitions. [2021-08-27 06:19:50,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 06:19:50,773 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:50,773 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:50,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:50,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:50,976 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:50,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:50,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1487182461, now seen corresponding path program 1 times [2021-08-27 06:19:50,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:50,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134721923] [2021-08-27 06:19:50,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:50,977 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:50,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:50,979 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:50,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-27 06:19:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:51,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:19:51,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:51,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:51,809 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:51,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134721923] [2021-08-27 06:19:51,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134721923] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:51,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:51,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-27 06:19:51,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410045994] [2021-08-27 06:19:51,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:19:51,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:51,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:19:51,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:19:51,810 INFO L87 Difference]: Start difference. First operand 127 states and 133 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:51,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:51,841 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2021-08-27 06:19:51,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:19:51,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-08-27 06:19:51,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:51,842 INFO L225 Difference]: With dead ends: 129 [2021-08-27 06:19:51,842 INFO L226 Difference]: Without dead ends: 127 [2021-08-27 06:19:51,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:19:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-27 06:19:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-08-27 06:19:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.2125) internal successors, (97), 93 states have internal predecessors, (97), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2021-08-27 06:19:51,845 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 58 [2021-08-27 06:19:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:51,845 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2021-08-27 06:19:51,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:19:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2021-08-27 06:19:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 06:19:51,846 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:51,846 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:51,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-08-27 06:19:52,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:52,055 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:52,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:52,055 INFO L82 PathProgramCache]: Analyzing trace with hash -537222574, now seen corresponding path program 1 times [2021-08-27 06:19:52,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:52,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357972430] [2021-08-27 06:19:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:52,056 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:52,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:52,057 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:52,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-27 06:19:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:52,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:19:52,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:52,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:53,309 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:53,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357972430] [2021-08-27 06:19:53,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357972430] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:53,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:53,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-08-27 06:19:53,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279802796] [2021-08-27 06:19:53,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:19:53,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:53,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:19:53,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:53,312 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:19:53,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:53,377 INFO L93 Difference]: Finished difference Result 131 states and 135 transitions. [2021-08-27 06:19:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:19:53,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2021-08-27 06:19:53,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:53,378 INFO L225 Difference]: With dead ends: 131 [2021-08-27 06:19:53,378 INFO L226 Difference]: Without dead ends: 127 [2021-08-27 06:19:53,378 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 94.3ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:19:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-27 06:19:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-08-27 06:19:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.2) internal successors, (96), 92 states have internal predecessors, (96), 18 states have call successors, (18), 17 states have call predecessors, (18), 16 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-08-27 06:19:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 131 transitions. [2021-08-27 06:19:53,386 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 131 transitions. Word has length 63 [2021-08-27 06:19:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:53,387 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 131 transitions. [2021-08-27 06:19:53,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:19:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 131 transitions. [2021-08-27 06:19:53,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-08-27 06:19:53,388 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:53,388 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1] [2021-08-27 06:19:53,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:53,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:53,598 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:53,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:53,598 INFO L82 PathProgramCache]: Analyzing trace with hash -964060479, now seen corresponding path program 1 times [2021-08-27 06:19:53,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:53,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094411036] [2021-08-27 06:19:53,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:53,599 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:53,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:53,600 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:53,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-27 06:19:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:54,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:19:54,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:54,177 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 06:19:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:54,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:54,845 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:54,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094411036] [2021-08-27 06:19:54,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094411036] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:54,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:54,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-08-27 06:19:54,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361178620] [2021-08-27 06:19:54,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 06:19:54,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:54,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 06:19:54,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:19:54,848 INFO L87 Difference]: Start difference. First operand 127 states and 131 transitions. Second operand has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:55,686 INFO L93 Difference]: Finished difference Result 178 states and 198 transitions. [2021-08-27 06:19:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 06:19:55,687 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2021-08-27 06:19:55,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:55,688 INFO L225 Difference]: With dead ends: 178 [2021-08-27 06:19:55,689 INFO L226 Difference]: Without dead ends: 178 [2021-08-27 06:19:55,689 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 13 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 292.5ms TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-08-27 06:19:55,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-08-27 06:19:55,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2021-08-27 06:19:55,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 98 states have (on average 1.1938775510204083) internal successors, (117), 111 states have internal predecessors, (117), 22 states have call successors, (22), 21 states have call predecessors, (22), 22 states have return successors, (27), 21 states have call predecessors, (27), 21 states have call successors, (27) [2021-08-27 06:19:55,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2021-08-27 06:19:55,703 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 74 [2021-08-27 06:19:55,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:55,703 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2021-08-27 06:19:55,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:19:55,704 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2021-08-27 06:19:55,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-08-27 06:19:55,704 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:55,704 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1] [2021-08-27 06:19:55,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:55,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:55,918 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:55,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:55,918 INFO L82 PathProgramCache]: Analyzing trace with hash -964060478, now seen corresponding path program 1 times [2021-08-27 06:19:55,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:55,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440602321] [2021-08-27 06:19:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:55,919 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:55,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:55,920 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:55,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-27 06:19:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:56,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-27 06:19:56,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:56,608 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 06:19:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:57,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:58,592 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:58,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440602321] [2021-08-27 06:19:58,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440602321] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:58,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:58,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-08-27 06:19:58,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221236692] [2021-08-27 06:19:58,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-27 06:19:58,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:58,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-27 06:19:58,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-08-27 06:19:58,594 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:20:00,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:00,705 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2021-08-27 06:20:00,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:20:00,706 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 74 [2021-08-27 06:20:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:00,707 INFO L225 Difference]: With dead ends: 152 [2021-08-27 06:20:00,707 INFO L226 Difference]: Without dead ends: 152 [2021-08-27 06:20:00,708 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1466.6ms TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 06:20:00,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-27 06:20:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-08-27 06:20:00,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 98 states have (on average 1.153061224489796) internal successors, (113), 109 states have internal predecessors, (113), 22 states have call successors, (22), 21 states have call predecessors, (22), 22 states have return successors, (27), 21 states have call predecessors, (27), 21 states have call successors, (27) [2021-08-27 06:20:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 162 transitions. [2021-08-27 06:20:00,710 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 162 transitions. Word has length 74 [2021-08-27 06:20:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:00,711 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 162 transitions. [2021-08-27 06:20:00,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:20:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 162 transitions. [2021-08-27 06:20:00,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-08-27 06:20:00,711 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:00,711 INFO L512 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1] [2021-08-27 06:20:00,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-08-27 06:20:00,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:20:00,912 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:20:00,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:00,912 INFO L82 PathProgramCache]: Analyzing trace with hash -770520951, now seen corresponding path program 1 times [2021-08-27 06:20:00,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:00,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894003225] [2021-08-27 06:20:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:00,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:00,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:20:00,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-27 06:20:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:01,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:20:01,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:01,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-08-27 06:20:02,278 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:02,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894003225] [2021-08-27 06:20:02,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894003225] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:20:02,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:20:02,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 11 [2021-08-27 06:20:02,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116252798] [2021-08-27 06:20:02,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:20:02,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:02,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:20:02,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:20:02,280 INFO L87 Difference]: Start difference. First operand 152 states and 162 transitions. Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-08-27 06:20:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:02,343 INFO L93 Difference]: Finished difference Result 153 states and 159 transitions. [2021-08-27 06:20:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:20:02,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 77 [2021-08-27 06:20:02,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:02,344 INFO L225 Difference]: With dead ends: 153 [2021-08-27 06:20:02,344 INFO L226 Difference]: Without dead ends: 149 [2021-08-27 06:20:02,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:20:02,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-08-27 06:20:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-08-27 06:20:02,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 97 states have (on average 1.134020618556701) internal successors, (110), 107 states have internal predecessors, (110), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2021-08-27 06:20:02,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 155 transitions. [2021-08-27 06:20:02,348 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 155 transitions. Word has length 77 [2021-08-27 06:20:02,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:02,349 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 155 transitions. [2021-08-27 06:20:02,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2021-08-27 06:20:02,349 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 155 transitions. [2021-08-27 06:20:02,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-27 06:20:02,349 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:02,350 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:20:02,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-27 06:20:02,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:20:02,575 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:20:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash 810528448, now seen corresponding path program 1 times [2021-08-27 06:20:02,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:02,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757696067] [2021-08-27 06:20:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:02,576 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:02,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:02,577 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:20:02,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-27 06:20:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:03,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 06:20:03,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:03,388 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 06:20:03,940 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:03,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:04,422 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:04,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757696067] [2021-08-27 06:20:04,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757696067] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:20:04,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:20:04,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-08-27 06:20:04,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314840702] [2021-08-27 06:20:04,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 06:20:04,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 06:20:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-08-27 06:20:04,424 INFO L87 Difference]: Start difference. First operand 149 states and 155 transitions. Second operand has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:20:05,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:05,583 INFO L93 Difference]: Finished difference Result 180 states and 196 transitions. [2021-08-27 06:20:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 06:20:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 87 [2021-08-27 06:20:05,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:05,584 INFO L225 Difference]: With dead ends: 180 [2021-08-27 06:20:05,584 INFO L226 Difference]: Without dead ends: 180 [2021-08-27 06:20:05,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 137 SyntacticMatches, 17 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 533.9ms TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-08-27 06:20:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-08-27 06:20:05,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 155. [2021-08-27 06:20:05,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 101 states have (on average 1.1287128712871286) internal successors, (114), 110 states have internal predecessors, (114), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (27), 20 states have call predecessors, (27), 23 states have call successors, (27) [2021-08-27 06:20:05,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2021-08-27 06:20:05,588 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 87 [2021-08-27 06:20:05,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:05,588 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2021-08-27 06:20:05,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:20:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2021-08-27 06:20:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-27 06:20:05,589 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:05,589 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:20:05,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-27 06:20:05,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:20:05,789 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:20:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:05,789 INFO L82 PathProgramCache]: Analyzing trace with hash 810528449, now seen corresponding path program 1 times [2021-08-27 06:20:05,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:05,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129534217] [2021-08-27 06:20:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:05,790 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:05,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:05,791 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:20:05,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-27 06:20:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:06,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 44 conjunts are in the unsatisfiable core [2021-08-27 06:20:06,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:06,655 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 06:20:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:07,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:09,406 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:09,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129534217] [2021-08-27 06:20:09,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129534217] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:20:09,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:20:09,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-08-27 06:20:09,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249701535] [2021-08-27 06:20:09,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-08-27 06:20:09,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-08-27 06:20:09,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-08-27 06:20:09,409 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-08-27 06:20:12,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:12,347 INFO L93 Difference]: Finished difference Result 153 states and 162 transitions. [2021-08-27 06:20:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:20:12,348 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) Word has length 87 [2021-08-27 06:20:12,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:12,349 INFO L225 Difference]: With dead ends: 153 [2021-08-27 06:20:12,349 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 06:20:12,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2166.7ms TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-08-27 06:20:12,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 06:20:12,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-08-27 06:20:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 101 states have (on average 1.099009900990099) internal successors, (111), 108 states have internal predecessors, (111), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (27), 20 states have call predecessors, (27), 23 states have call successors, (27) [2021-08-27 06:20:12,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2021-08-27 06:20:12,353 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 87 [2021-08-27 06:20:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:12,355 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2021-08-27 06:20:12,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-08-27 06:20:12,355 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2021-08-27 06:20:12,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-08-27 06:20:12,356 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:12,356 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:20:12,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-08-27 06:20:12,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:20:12,567 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:20:12,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:12,568 INFO L82 PathProgramCache]: Analyzing trace with hash 147123437, now seen corresponding path program 1 times [2021-08-27 06:20:12,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:12,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795989438] [2021-08-27 06:20:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:12,568 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:12,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:12,569 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:20:12,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-27 06:20:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:13,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 06:20:13,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:14,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:20:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:20:15,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:20:15,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795989438] [2021-08-27 06:20:15,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795989438] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:20:15,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:20:15,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-08-27 06:20:15,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099575396] [2021-08-27 06:20:15,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-27 06:20:15,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:20:15,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-27 06:20:15,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-08-27 06:20:15,537 INFO L87 Difference]: Start difference. First operand 153 states and 162 transitions. Second operand has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-08-27 06:20:17,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:20:17,023 INFO L93 Difference]: Finished difference Result 152 states and 161 transitions. [2021-08-27 06:20:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:20:17,023 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) Word has length 90 [2021-08-27 06:20:17,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:20:17,024 INFO L225 Difference]: With dead ends: 152 [2021-08-27 06:20:17,024 INFO L226 Difference]: Without dead ends: 152 [2021-08-27 06:20:17,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1291.6ms TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-08-27 06:20:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-27 06:20:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-08-27 06:20:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 101 states have (on average 1.0891089108910892) internal successors, (110), 107 states have internal predecessors, (110), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (27), 20 states have call predecessors, (27), 23 states have call successors, (27) [2021-08-27 06:20:17,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 161 transitions. [2021-08-27 06:20:17,027 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 161 transitions. Word has length 90 [2021-08-27 06:20:17,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:20:17,027 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 161 transitions. [2021-08-27 06:20:17,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-08-27 06:20:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2021-08-27 06:20:17,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-08-27 06:20:17,028 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:20:17,028 INFO L512 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:20:17,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-27 06:20:17,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:20:17,235 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:20:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:20:17,236 INFO L82 PathProgramCache]: Analyzing trace with hash 2088002500, now seen corresponding path program 1 times [2021-08-27 06:20:17,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:20:17,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449361239] [2021-08-27 06:20:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:20:17,236 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:20:17,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:20:17,237 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:20:17,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-27 06:20:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:20:18,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 115 conjunts are in the unsatisfiable core [2021-08-27 06:20:18,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:20:18,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-08-27 06:20:18,384 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-08-27 06:20:18,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-08-27 06:20:18,445 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-08-27 06:20:18,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-08-27 06:20:18,534 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-08-27 06:20:18,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-08-27 06:20:18,661 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:20:18,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:20:18,815 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-08-27 06:20:18,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-08-27 06:20:19,018 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-08-27 06:20:19,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-08-27 06:20:19,276 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-08-27 06:20:19,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 111 [2021-08-27 06:20:19,612 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-08-27 06:20:19,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-08-27 06:20:20,026 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-08-27 06:20:20,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-08-27 06:20:20,560 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:20:20,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:20:21,076 INFO L354 Elim1Store]: treesize reduction 964, result has 9.2 percent of original size [2021-08-27 06:20:21,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 136 treesize of output 165 [2021-08-27 06:20:21,825 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-27 06:20:21,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-08-27 06:20:22,709 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-08-27 06:20:22,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-08-27 06:20:23,555 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-08-27 06:20:23,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 168 treesize of output 206 [2021-08-27 06:20:24,687 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:20:24,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:20:28,974 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:20:31,005 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:20:31,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:31,177 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:31,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:20:34,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:20:34,457 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:34,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-08-27 06:20:36,172 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:20:36,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 92 treesize of output 40 [2021-08-27 06:20:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:20:36,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:22:52,940 WARN L207 SmtUtils]: Spent 2.20 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:23:04,600 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:23:04,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449361239] [2021-08-27 06:23:04,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:23:04,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1810265095] [2021-08-27 06:23:04,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:04,601 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:23:04,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:23:04,603 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:23:04,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-08-27 06:23:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:06,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 111 conjunts are in the unsatisfiable core [2021-08-27 06:23:06,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:06,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 12 [2021-08-27 06:23:08,876 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:23:08,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-08-27 06:23:08,955 INFO L354 Elim1Store]: treesize reduction 68, result has 20.9 percent of original size [2021-08-27 06:23:08,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-08-27 06:23:09,070 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-27 06:23:09,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-08-27 06:23:09,225 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:23:09,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:23:09,400 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-08-27 06:23:09,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-08-27 06:23:09,621 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-08-27 06:23:09,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-08-27 06:23:09,913 INFO L354 Elim1Store]: treesize reduction 430, result has 12.6 percent of original size [2021-08-27 06:23:09,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 108 [2021-08-27 06:23:10,372 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-08-27 06:23:10,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-08-27 06:23:10,773 INFO L354 Elim1Store]: treesize reduction 662, result has 10.8 percent of original size [2021-08-27 06:23:10,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 113 treesize of output 136 [2021-08-27 06:23:11,401 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:23:11,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:23:12,026 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-08-27 06:23:12,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-08-27 06:23:12,951 INFO L354 Elim1Store]: treesize reduction 1138, result has 8.7 percent of original size [2021-08-27 06:23:12,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 148 treesize of output 180 [2021-08-27 06:23:14,017 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-27 06:23:14,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-08-27 06:23:15,237 INFO L354 Elim1Store]: treesize reduction 1480, result has 7.8 percent of original size [2021-08-27 06:23:15,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 169 treesize of output 207 [2021-08-27 06:23:16,717 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:23:16,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:23:19,679 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_21) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_22) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_23) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_24) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:23:21,710 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_21) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_22) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_23) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_24) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:23:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:23:21,926 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:23:21,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:23:23,154 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:23:23,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 121 treesize of output 121 [2021-08-27 06:23:26,947 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:23:26,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 136 [2021-08-27 06:23:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:23:27,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:51,347 WARN L207 SmtUtils]: Spent 2.20 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:26:05,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:26:05,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599802812] [2021-08-27 06:26:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:05,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:26:05,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:26:05,516 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:26:05,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-27 06:26:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:06,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 117 conjunts are in the unsatisfiable core [2021-08-27 06:26:06,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:07,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 12 [2021-08-27 06:26:07,050 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:26:07,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-08-27 06:26:07,164 INFO L354 Elim1Store]: treesize reduction 68, result has 20.9 percent of original size [2021-08-27 06:26:07,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-08-27 06:26:07,293 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-08-27 06:26:07,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-08-27 06:26:07,399 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:26:07,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:26:07,544 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-08-27 06:26:07,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-08-27 06:26:07,736 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-08-27 06:26:07,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-08-27 06:26:08,004 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-08-27 06:26:08,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 111 [2021-08-27 06:26:08,364 INFO L354 Elim1Store]: treesize reduction 586, result has 11.2 percent of original size [2021-08-27 06:26:08,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 106 treesize of output 126 [2021-08-27 06:26:08,908 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-08-27 06:26:08,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-08-27 06:26:09,451 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:26:09,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:26:10,133 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-08-27 06:26:10,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-08-27 06:26:10,991 INFO L354 Elim1Store]: treesize reduction 1138, result has 8.7 percent of original size [2021-08-27 06:26:10,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 148 treesize of output 180 [2021-08-27 06:26:12,014 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-27 06:26:12,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-08-27 06:26:13,409 INFO L354 Elim1Store]: treesize reduction 1480, result has 7.8 percent of original size [2021-08-27 06:26:13,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 169 treesize of output 207 [2021-08-27 06:26:15,076 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:26:15,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:26:18,150 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_41) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_42) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_43) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_44) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:26:20,192 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_41) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_42) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_43) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_44) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:26:20,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:20,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:26:20,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:26:21,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:26:21,693 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:26:21,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-08-27 06:26:22,340 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:26:22,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 43 [2021-08-27 06:26:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:26:23,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:28:43,623 WARN L207 SmtUtils]: Spent 2.19 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:28:52,906 WARN L207 SmtUtils]: Spent 7.77 s on a formula simplification that was a NOOP. DAG size: 106 [2021-08-27 06:29:02,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:29:02,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:29:02,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:29:02,379 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:29:02,379 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:29:02,382 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,383 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,384 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,385 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:29:02,386 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,387 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:29:02,388 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,389 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,390 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:29:02,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:29:02,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:29:02,392 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:29:02,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2021-08-27 06:29:02,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-08-27 06:29:02,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-08-27 06:29:03,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:29:03,046 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:29:03,048 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 06:29:03,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:29:03 BoogieIcfgContainer [2021-08-27 06:29:03,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:29:03,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:29:03,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:29:03,056 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:29:03,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:19:30" (3/4) ... [2021-08-27 06:29:03,063 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:29:03,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:29:03,064 INFO L168 Benchmark]: Toolchain (without parser) took 573794.33 ms. Allocated memory was 56.6 MB in the beginning and 497.0 MB in the end (delta: 440.4 MB). Free memory was 33.3 MB in the beginning and 371.3 MB in the end (delta: -337.9 MB). Peak memory consumption was 101.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:29:03,064 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 38.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:29:03,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.81 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 33.0 MB in the beginning and 42.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:29:03,064 INFO L168 Benchmark]: Boogie Preprocessor took 119.22 ms. Allocated memory is still 77.6 MB. Free memory was 42.4 MB in the beginning and 57.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:29:03,065 INFO L168 Benchmark]: RCFGBuilder took 1022.74 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 57.6 MB in the beginning and 79.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:29:03,065 INFO L168 Benchmark]: TraceAbstraction took 572124.74 ms. Allocated memory was 104.9 MB in the beginning and 497.0 MB in the end (delta: 392.2 MB). Free memory was 79.6 MB in the beginning and 371.3 MB in the end (delta: -291.7 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:29:03,068 INFO L168 Benchmark]: Witness Printer took 7.43 ms. Allocated memory is still 497.0 MB. Free memory is still 371.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:29:03,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 38.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 512.81 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 33.0 MB in the beginning and 42.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 119.22 ms. Allocated memory is still 77.6 MB. Free memory was 42.4 MB in the beginning and 57.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1022.74 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 57.6 MB in the beginning and 79.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 572124.74 ms. Allocated memory was 104.9 MB in the beginning and 497.0 MB in the end (delta: 392.2 MB). Free memory was 79.6 MB in the beginning and 371.3 MB in the end (delta: -291.7 MB). Peak memory consumption was 100.3 MB. Max. memory is 16.1 GB. * Witness Printer took 7.43 ms. Allocated memory is still 497.0 MB. Free memory is still 371.3 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; 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: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L764] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - 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: 763]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 332 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 572051.2ms, OverallIterations: 23, TraceHistogramMax: 16, EmptinessCheckTime: 27.2ms, AutomataDifference: 14635.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2335 SDtfs, 1177 SDslu, 16412 SDs, 0 SdLazy, 9606 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10506.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2236 GetRequests, 1790 SyntacticMatches, 69 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1924 ImplicationChecksByTransitivity, 9558.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=20, InterpolantAutomatonStates: 266, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 123.0ms AutomataMinimizationTime, 22 MinimizatonAttempts, 124 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 334.3ms SsaConstructionTime, 1085.6ms SatisfiabilityAnalysisTime, 17512.5ms InterpolantComputationTime, 1096 NumberOfCodeBlocks, 1060 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2148 ConstructedInterpolants, 306 QuantifiedInterpolants, 9192 SizeOfPredicates, 94 NumberOfNonLiveVariables, 4681 ConjunctsInSsa, 325 ConjunctsInUnsatCore, 44 InterpolantComputations, 37 PerfectInterpolantSequences, 2985/3246 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 06:29:03,147 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...