./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD --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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 ....................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD --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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:22:27,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:22:27,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:22:27,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:22:27,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:22:27,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:22:27,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:22:27,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:22:27,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:22:27,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:22:27,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:22:27,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:22:27,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:22:27,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:22:27,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:22:27,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:22:27,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:22:27,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:22:27,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:22:27,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:22:27,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:22:27,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:22:27,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:22:27,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:22:27,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:22:27,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:22:27,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:22:27,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:22:27,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:22:27,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:22:27,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:22:27,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:22:27,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:22:27,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:22:27,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:22:27,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:22:27,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:22:27,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:22:27,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:22:27,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:22:27,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:22:27,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:22:27,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:22:27,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:22:27,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:22:27,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:22:27,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:22:27,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:22:27,519 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:22:27,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:22:27,520 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:22:27,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:22:27,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:22:27,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:22:27,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:22:27,523 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:22:27,523 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:22:27,523 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:22:27,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:22:27,524 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:22:27,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:22:27,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:22:27,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:22:27,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:22:27,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:22:27,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:22:27,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:22:27,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:22:27,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:22:27,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:22:27,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:22:27,529 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-10-28 23:22:27,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:22:27,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:22:27,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:22:27,921 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:22:27,922 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:22:27,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-28 23:22:28,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/d66552464/220a235d83934bc5950f23337f426920/FLAG886a66dc1 [2021-10-28 23:22:28,741 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:22:28,742 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-28 23:22:28,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/d66552464/220a235d83934bc5950f23337f426920/FLAG886a66dc1 [2021-10-28 23:22:28,965 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/d66552464/220a235d83934bc5950f23337f426920 [2021-10-28 23:22:28,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:22:28,969 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:22:28,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:22:28,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:22:28,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:22:28,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:28" (1/1) ... [2021-10-28 23:22:28,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e15682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:28, skipping insertion in model container [2021-10-28 23:22:28,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:28" (1/1) ... [2021-10-28 23:22:28,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:22:29,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:22:29,598 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-28 23:22:29,618 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-28 23:22:29,619 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-28 23:22:29,620 WARN L549 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-10-28 23:22:29,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:22:29,664 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) [2021-10-28 23:22:29,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@74a5be8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:29, skipping insertion in model container [2021-10-28 23:22:29,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:22:29,665 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:22:29,668 INFO L168 Benchmark]: Toolchain (without parser) took 696.79 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 76.8 MB in the beginning and 114.7 MB in the end (delta: -37.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:29,669 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 107.0 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:22:29,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.12 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 76.6 MB in the beginning and 115.1 MB in the end (delta: -38.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:22:29,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 107.0 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.12 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 76.6 MB in the beginning and 115.1 MB in the end (delta: -38.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: 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-b2eff8b [2021-10-28 23:22:32,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:22:32,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:22:32,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:22:32,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:22:32,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:22:32,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:22:32,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:22:32,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:22:32,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:22:32,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:22:32,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:22:32,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:22:32,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:22:32,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:22:32,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:22:32,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:22:32,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:22:32,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:22:32,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:22:32,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:22:32,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:22:32,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:22:32,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:22:32,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:22:32,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:22:32,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:22:32,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:22:32,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:22:32,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:22:32,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:22:32,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:22:32,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:22:32,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:22:32,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:22:32,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:22:32,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:22:32,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:22:32,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:22:32,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:22:32,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:22:32,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:22:32,732 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:22:32,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:22:32,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:22:32,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:22:32,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:22:32,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:22:32,736 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:22:32,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:22:32,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:22:32,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:22:32,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:22:32,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:22:32,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:22:32,739 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:22:32,739 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:22:32,740 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:22:32,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:22:32,740 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:22:32,740 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:22:32,741 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:22:32,741 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:22:32,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:22:32,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:22:32,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:22:32,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:22:32,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:22:32,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:22:32,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:22:32,743 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:22:32,743 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:22:32,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:22:32,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:22:32,744 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 [2021-10-28 23:22:33,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:22:33,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:22:33,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:22:33,301 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:22:33,302 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:22:33,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-28 23:22:33,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/bc97394c4/c33b1f00a1434b83bbbc8a6c10101677/FLAG1fdf4e046 [2021-10-28 23:22:34,202 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:22:34,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i [2021-10-28 23:22:34,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/bc97394c4/c33b1f00a1434b83bbbc8a6c10101677/FLAG1fdf4e046 [2021-10-28 23:22:34,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/data/bc97394c4/c33b1f00a1434b83bbbc8a6c10101677 [2021-10-28 23:22:34,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:22:34,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:22:34,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:22:34,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:22:34,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:22:34,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:34" (1/1) ... [2021-10-28 23:22:34,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6b6ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:34, skipping insertion in model container [2021-10-28 23:22:34,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:34" (1/1) ... [2021-10-28 23:22:34,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:22:34,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:22:35,124 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-28 23:22:35,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:22:35,193 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:22:35,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:22:35,243 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-28 23:22:35,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:22:35,277 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:22:35,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2021-10-28 23:22:35,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:22:35,458 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:22:35,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35 WrapperNode [2021-10-28 23:22:35,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:22:35,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:22:35,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:22:35,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:22:35,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:22:35,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:22:35,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:22:35,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:22:35,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (1/1) ... [2021-10-28 23:22:35,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:22:35,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:35,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:35,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:22:35,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:22:35,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:22:35,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:22:35,693 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:22:35,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:22:35,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:22:35,693 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-10-28 23:22:35,694 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-10-28 23:22:35,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-10-28 23:22:35,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-10-28 23:22:35,694 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-10-28 23:22:35,694 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-10-28 23:22:35,695 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-10-28 23:22:35,695 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-10-28 23:22:35,695 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-10-28 23:22:35,695 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-10-28 23:22:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2021-10-28 23:22:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-10-28 23:22:35,696 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:22:35,696 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:22:35,696 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:22:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 23:22:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 23:22:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:22:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:22:35,697 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:22:35,698 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:22:35,698 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:22:35,698 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:22:35,698 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:22:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:22:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:22:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:22:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:22:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:22:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:22:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:22:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:22:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:22:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:22:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:22:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:22:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:22:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:22:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:22:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:22:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:22:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:22:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:22:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:22:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:22:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:22:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:22:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:22:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:22:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:22:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:22:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:22:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:22:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:22:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:22:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:22:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:22:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:22:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:22:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:22:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:22:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:22:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:22:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:22:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:22:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:22:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:22:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:22:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:22:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:22:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:22:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:22:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:22:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:22:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:22:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-28 23:22:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:22:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:22:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:22:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:22:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:22:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:22:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:22:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:22:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:22:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:22:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:22:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:22:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:22:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:22:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:22:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:22:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:22:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:22:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:22:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:22:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:22:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:22:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:22:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:22:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:22:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:22:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:22:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:22:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:22:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:22:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:22:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:22:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:22:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:22:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:22:35,715 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:22:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:22:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:22:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:22:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:22:35,716 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:22:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:22:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:22:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:22:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2021-10-28 23:22:35,717 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2021-10-28 23:22:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2021-10-28 23:22:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2021-10-28 23:22:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2021-10-28 23:22:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2021-10-28 23:22:35,718 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2021-10-28 23:22:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2021-10-28 23:22:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2021-10-28 23:22:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2021-10-28 23:22:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2021-10-28 23:22:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2021-10-28 23:22:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2021-10-28 23:22:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2021-10-28 23:22:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2021-10-28 23:22:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2021-10-28 23:22:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2021-10-28 23:22:35,721 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2021-10-28 23:22:35,721 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2021-10-28 23:22:35,721 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2021-10-28 23:22:35,721 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2021-10-28 23:22:35,721 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2021-10-28 23:22:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2021-10-28 23:22:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2021-10-28 23:22:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2021-10-28 23:22:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2021-10-28 23:22:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-10-28 23:22:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2021-10-28 23:22:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-28 23:22:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2021-10-28 23:22:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2021-10-28 23:22:35,723 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2021-10-28 23:22:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2021-10-28 23:22:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2021-10-28 23:22:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2021-10-28 23:22:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2021-10-28 23:22:35,724 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2021-10-28 23:22:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2021-10-28 23:22:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-10-28 23:22:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2021-10-28 23:22:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2021-10-28 23:22:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2021-10-28 23:22:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2021-10-28 23:22:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2021-10-28 23:22:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2021-10-28 23:22:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2021-10-28 23:22:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2021-10-28 23:22:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2021-10-28 23:22:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2021-10-28 23:22:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2021-10-28 23:22:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2021-10-28 23:22:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2021-10-28 23:22:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2021-10-28 23:22:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2021-10-28 23:22:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-10-28 23:22:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2021-10-28 23:22:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2021-10-28 23:22:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2021-10-28 23:22:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2021-10-28 23:22:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2021-10-28 23:22:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2021-10-28 23:22:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2021-10-28 23:22:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2021-10-28 23:22:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2021-10-28 23:22:35,730 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2021-10-28 23:22:35,730 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2021-10-28 23:22:35,730 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2021-10-28 23:22:35,730 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2021-10-28 23:22:35,730 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2021-10-28 23:22:35,730 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2021-10-28 23:22:35,731 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2021-10-28 23:22:35,731 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2021-10-28 23:22:35,731 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2021-10-28 23:22:35,731 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-28 23:22:35,731 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2021-10-28 23:22:35,731 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2021-10-28 23:22:35,732 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2021-10-28 23:22:35,732 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2021-10-28 23:22:35,732 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2021-10-28 23:22:35,732 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2021-10-28 23:22:35,732 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2021-10-28 23:22:35,732 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2021-10-28 23:22:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2021-10-28 23:22:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2021-10-28 23:22:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2021-10-28 23:22:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2021-10-28 23:22:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2021-10-28 23:22:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2021-10-28 23:22:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2021-10-28 23:22:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2021-10-28 23:22:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2021-10-28 23:22:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2021-10-28 23:22:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2021-10-28 23:22:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2021-10-28 23:22:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2021-10-28 23:22:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2021-10-28 23:22:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2021-10-28 23:22:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2021-10-28 23:22:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2021-10-28 23:22:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2021-10-28 23:22:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2021-10-28 23:22:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:22:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-10-28 23:22:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-10-28 23:22:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:22:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-10-28 23:22:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:22:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-10-28 23:22:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-10-28 23:22:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-10-28 23:22:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-10-28 23:22:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:22:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:22:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-10-28 23:22:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-10-28 23:22:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:22:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-10-28 23:22:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:22:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2021-10-28 23:22:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-10-28 23:22:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:22:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:22:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:22:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:22:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:22:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:22:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 23:22:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 23:22:37,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:22:37,398 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-10-28 23:22:37,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:22:37 BoogieIcfgContainer [2021-10-28 23:22:37,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:22:37,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:22:37,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:22:37,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:22:37,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:22:34" (1/3) ... [2021-10-28 23:22:37,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa23c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:22:37, skipping insertion in model container [2021-10-28 23:22:37,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35" (2/3) ... [2021-10-28 23:22:37,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa23c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:22:37, skipping insertion in model container [2021-10-28 23:22:37,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:22:37" (3/3) ... [2021-10-28 23:22:37,420 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2021-10-28 23:22:37,430 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:22:37,430 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 23:22:37,499 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:22:37,506 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, mAutomataTypeConcurrency=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 [2021-10-28 23:22:37,506 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 23:22:37,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-10-28 23:22:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:22:37,543 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:22:37,544 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:37,545 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:22:37,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:37,552 INFO L85 PathProgramCache]: Analyzing trace with hash 963234318, now seen corresponding path program 1 times [2021-10-28 23:22:37,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:22:37,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198893544] [2021-10-28 23:22:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:37,568 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:22:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:22:37,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:22:37,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:22:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:37,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:22:37,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:37,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:22:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:38,029 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:22:38,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198893544] [2021-10-28 23:22:38,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198893544] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:22:38,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:38,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:22:38,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801404641] [2021-10-28 23:22:38,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:22:38,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:22:38,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:22:38,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:22:38,070 INFO L87 Difference]: Start difference. First operand has 240 states, 123 states have (on average 2.089430894308943) internal successors, (257), 213 states have internal predecessors, (257), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:22:38,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:38,145 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-10-28 23:22:38,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:22:38,147 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 23:22:38,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:22:38,171 INFO L225 Difference]: With dead ends: 236 [2021-10-28 23:22:38,174 INFO L226 Difference]: Without dead ends: 233 [2021-10-28 23:22:38,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:22:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-10-28 23:22:38,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-10-28 23:22:38,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 119 states have (on average 1.7563025210084033) internal successors, (209), 206 states have internal predecessors, (209), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 23:22:38,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 255 transitions. [2021-10-28 23:22:38,236 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 255 transitions. Word has length 10 [2021-10-28 23:22:38,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:22:38,237 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 255 transitions. [2021-10-28 23:22:38,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:22:38,237 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 255 transitions. [2021-10-28 23:22:38,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:22:38,238 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:22:38,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:38,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:38,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:22:38,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:22:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash 963234380, now seen corresponding path program 1 times [2021-10-28 23:22:38,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:22:38,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462353112] [2021-10-28 23:22:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:38,459 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:22:38,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:22:38,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:22:38,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:22:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:38,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:22:38,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:38,805 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 [2021-10-28 23:22:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:38,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:22:38,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:38,900 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:22:38,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462353112] [2021-10-28 23:22:38,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462353112] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:22:38,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:38,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:22:38,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055997522] [2021-10-28 23:22:38,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:22:38,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:22:38,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:22:38,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:22:38,910 INFO L87 Difference]: Start difference. First operand 233 states and 255 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:22:39,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:39,272 INFO L93 Difference]: Finished difference Result 230 states and 252 transitions. [2021-10-28 23:22:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:22:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 23:22:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:22:39,276 INFO L225 Difference]: With dead ends: 230 [2021-10-28 23:22:39,276 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 23:22:39,276 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:22:39,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 23:22:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-10-28 23:22:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 119 states have (on average 1.73109243697479) internal successors, (206), 203 states have internal predecessors, (206), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 23:22:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 252 transitions. [2021-10-28 23:22:39,308 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 252 transitions. Word has length 10 [2021-10-28 23:22:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:22:39,309 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 252 transitions. [2021-10-28 23:22:39,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:22:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 252 transitions. [2021-10-28 23:22:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:22:39,311 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:22:39,311 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:39,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:22:39,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:22:39,536 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:22:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:39,537 INFO L85 PathProgramCache]: Analyzing trace with hash 963234381, now seen corresponding path program 1 times [2021-10-28 23:22:39,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:22:39,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686393142] [2021-10-28 23:22:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:39,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:22:39,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:22:39,539 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:22:39,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:22:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:39,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:22:39,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:39,857 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 [2021-10-28 23:22:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:39,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:22:40,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:40,051 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:22:40,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686393142] [2021-10-28 23:22:40,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686393142] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:22:40,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:40,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 23:22:40,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036722862] [2021-10-28 23:22:40,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:22:40,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:22:40,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:22:40,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:22:40,054 INFO L87 Difference]: Start difference. First operand 230 states and 252 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:22:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:40,684 INFO L93 Difference]: Finished difference Result 227 states and 249 transitions. [2021-10-28 23:22:40,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:22:40,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 23:22:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:22:40,688 INFO L225 Difference]: With dead ends: 227 [2021-10-28 23:22:40,688 INFO L226 Difference]: Without dead ends: 227 [2021-10-28 23:22:40,688 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:22:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-28 23:22:40,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-10-28 23:22:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 200 states have internal predecessors, (203), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 23:22:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2021-10-28 23:22:40,705 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 10 [2021-10-28 23:22:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:22:40,706 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2021-10-28 23:22:40,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:22:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2021-10-28 23:22:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:22:40,707 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:22:40,707 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:40,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 23:22:40,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:22:40,938 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:22:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:40,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428672, now seen corresponding path program 1 times [2021-10-28 23:22:40,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:22:40,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554806759] [2021-10-28 23:22:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:40,943 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:22:40,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:22:40,944 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:22:40,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:22:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:41,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:22:41,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:22:41,312 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:22:41,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 23:22:41,696 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-28 23:22:41,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 20 treesize of output 27 [2021-10-28 23:22:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:22:42,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:00,121 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:00,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554806759] [2021-10-28 23:23:00,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554806759] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:00,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:00,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 23:23:00,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70683771] [2021-10-28 23:23:00,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:23:00,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:00,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:23:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-10-28 23:23:00,125 INFO L87 Difference]: Start difference. First operand 227 states and 249 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:23:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:01,898 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2021-10-28 23:23:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:23:01,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-28 23:23:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:01,902 INFO L225 Difference]: With dead ends: 253 [2021-10-28 23:23:01,902 INFO L226 Difference]: Without dead ends: 253 [2021-10-28 23:23:01,903 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=45, Invalid=85, Unknown=2, NotChecked=0, Total=132 [2021-10-28 23:23:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-28 23:23:01,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 232. [2021-10-28 23:23:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 124 states have (on average 1.6774193548387097) internal successors, (208), 203 states have internal predecessors, (208), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:23:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 256 transitions. [2021-10-28 23:23:01,930 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 256 transitions. Word has length 13 [2021-10-28 23:23:01,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:01,931 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 256 transitions. [2021-10-28 23:23:01,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:23:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 256 transitions. [2021-10-28 23:23:01,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:23:01,932 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:01,932 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:01,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:02,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:02,150 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:23:02,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1039428673, now seen corresponding path program 1 times [2021-10-28 23:23:02,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:02,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12394220] [2021-10-28 23:23:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:02,152 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:02,154 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:02,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:23:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:02,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:23:02,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:02,578 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 23:23:02,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-28 23:23:02,673 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:23:02,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-28 23:23:03,272 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 23:23:03,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 51 [2021-10-28 23:23:03,321 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-28 23:23:03,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 64 [2021-10-28 23:23:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:04,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:10,501 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:10,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12394220] [2021-10-28 23:23:10,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12394220] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:10,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:10,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 23:23:10,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622913468] [2021-10-28 23:23:10,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:23:10,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:10,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:23:10,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-10-28 23:23:10,505 INFO L87 Difference]: Start difference. First operand 232 states and 256 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:23:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:13,758 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2021-10-28 23:23:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:23:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-28 23:23:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:13,763 INFO L225 Difference]: With dead ends: 249 [2021-10-28 23:23:13,763 INFO L226 Difference]: Without dead ends: 249 [2021-10-28 23:23:13,764 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=59, Invalid=122, Unknown=1, NotChecked=0, Total=182 [2021-10-28 23:23:13,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-28 23:23:13,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 229. [2021-10-28 23:23:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 124 states have (on average 1.6370967741935485) internal successors, (203), 200 states have internal predecessors, (203), 32 states have call successors, (32), 15 states have call predecessors, (32), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-10-28 23:23:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 251 transitions. [2021-10-28 23:23:13,777 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 251 transitions. Word has length 13 [2021-10-28 23:23:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:13,778 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 251 transitions. [2021-10-28 23:23:13,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:23:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 251 transitions. [2021-10-28 23:23:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:23:13,779 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:13,779 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:13,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-28 23:23:13,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:13,997 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:23:13,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064828, now seen corresponding path program 1 times [2021-10-28 23:23:13,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:13,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433468097] [2021-10-28 23:23:13,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:13,999 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:13,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:14,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:14,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:23:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:14,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:23:14,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:14,488 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:23:14,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 23:23:14,850 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:23:14,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-10-28 23:23:14,985 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:23:14,985 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 4 case distinctions, treesize of input 60 treesize of output 15 [2021-10-28 23:23:15,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-10-28 23:23:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:15,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:15,305 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-28 23:23:15,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-10-28 23:23:23,468 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) is different from false [2021-10-28 23:23:25,523 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-28 23:23:27,600 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_gl_insert_~node~1.base_19 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_19)))))))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_19) gl_insert_~node~1.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_3) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))) is different from false [2021-10-28 23:23:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:27,856 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:23:27,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433468097] [2021-10-28 23:23:27,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433468097] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:23:27,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:23:27,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-10-28 23:23:27,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545156995] [2021-10-28 23:23:27,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:23:27,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:23:27,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:23:27,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=88, Unknown=5, NotChecked=60, Total=182 [2021-10-28 23:23:27,860 INFO L87 Difference]: Start difference. First operand 229 states and 251 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:23:29,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:23:29,461 INFO L93 Difference]: Finished difference Result 252 states and 276 transitions. [2021-10-28 23:23:29,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:23:29,461 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-28 23:23:29,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:23:29,464 INFO L225 Difference]: With dead ends: 252 [2021-10-28 23:23:29,464 INFO L226 Difference]: Without dead ends: 252 [2021-10-28 23:23:29,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=73, Invalid=240, Unknown=5, NotChecked=102, Total=420 [2021-10-28 23:23:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-28 23:23:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2021-10-28 23:23:29,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.637037037037037) internal successors, (221), 211 states have internal predecessors, (221), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:23:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 275 transitions. [2021-10-28 23:23:29,478 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 275 transitions. Word has length 16 [2021-10-28 23:23:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:23:29,479 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 275 transitions. [2021-10-28 23:23:29,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:23:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 275 transitions. [2021-10-28 23:23:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:23:29,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:23:29,480 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:23:29,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:23:29,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:23:29,700 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:23:29,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:23:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1094064827, now seen corresponding path program 1 times [2021-10-28 23:23:29,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:23:29,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625091992] [2021-10-28 23:23:29,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:23:29,701 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:23:29,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:23:29,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:23:29,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:23:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:23:30,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 23:23:30,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:23:30,237 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:23:30,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-10-28 23:23:30,314 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 23:23:30,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-10-28 23:23:31,061 INFO L354 Elim1Store]: treesize reduction -2, result has 108.0 percent of original size [2021-10-28 23:23:31,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 65 [2021-10-28 23:23:31,142 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 23:23:31,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 60 treesize of output 67 [2021-10-28 23:23:31,516 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:23:31,516 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 4 case distinctions, treesize of input 116 treesize of output 71 [2021-10-28 23:23:31,607 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 23:23:31,608 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 4 case distinctions, treesize of input 68 treesize of output 23 [2021-10-28 23:23:31,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-10-28 23:23:31,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-28 23:23:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:23:32,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:23:35,578 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse2 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_gl_insert_~node~1.base) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) is different from false [2021-10-28 23:24:01,030 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))) is different from false [2021-10-28 23:24:03,215 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))))) is different from false [2021-10-28 23:24:05,423 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))))))) is different from false [2021-10-28 23:24:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:24:06,014 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:24:06,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625091992] [2021-10-28 23:24:06,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625091992] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:24:06,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:24:06,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 12] imperfect sequences [] total 20 [2021-10-28 23:24:06,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115897179] [2021-10-28 23:24:06,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:24:06,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:24:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:24:06,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=224, Unknown=15, NotChecked=132, Total=420 [2021-10-28 23:24:06,017 INFO L87 Difference]: Start difference. First operand 244 states and 275 transitions. Second operand has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:24:08,098 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (let ((.cse0 (select |c_#length| (_ bv0 32)))) (or (= (_ bv22 32) .cse0) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse0) (= (_ bv0 1) (select |c_#valid| (_ bv0 32))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|)))) (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse1 (_ bv4 32)) (bvadd .cse1 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse2 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse3 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse4 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse2 v_DerPreprocessor_10) .cse3 v_DerPreprocessor_11) .cse4 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse2 v_DerPreprocessor_6) .cse3 v_DerPreprocessor_7) .cse4 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20))))))))))))) is different from false [2021-10-28 23:24:10,177 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))))) (let ((.cse4 (select |c_#length| (_ bv0 32)))) (or (= (_ bv22 32) .cse4) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse4) (= (_ bv0 1) (select |c_#valid| (_ bv0 32))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|))))) is different from false [2021-10-28 23:24:12,293 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_gl_insert_~node~1.base_20 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_11) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvadd gl_insert_~node~1.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) gl_insert_~node~1.offset)) (.cse3 (bvadd gl_insert_~node~1.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_9) .cse1 v_DerPreprocessor_10) .cse2 v_DerPreprocessor_11) .cse3 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_gl_insert_~node~1.base_20 (_ bv20 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_20) gl_insert_~node~1.offset v_DerPreprocessor_5) .cse1 v_DerPreprocessor_6) .cse2 v_DerPreprocessor_7) .cse3 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~1.base_20)))))))) (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (let ((.cse4 (select |c_#length| (_ bv0 32)))) (or (= (_ bv22 32) .cse4) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse4) (= (_ bv0 1) (select |c_#valid| (_ bv0 32))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|))))) is different from false [2021-10-28 23:24:35,524 WARN L207 SmtUtils]: Spent 12.33 s on a formula simplification that was a NOOP. DAG size: 83 [2021-10-28 23:24:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:24:53,243 INFO L93 Difference]: Finished difference Result 247 states and 275 transitions. [2021-10-28 23:24:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:24:53,245 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-28 23:24:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:24:53,248 INFO L225 Difference]: With dead ends: 247 [2021-10-28 23:24:53,248 INFO L226 Difference]: Without dead ends: 247 [2021-10-28 23:24:53,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 61.2s TimeCoverageRelationStatistics Valid=123, Invalid=436, Unknown=21, NotChecked=350, Total=930 [2021-10-28 23:24:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-28 23:24:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 244. [2021-10-28 23:24:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 135 states have (on average 1.6296296296296295) internal successors, (220), 211 states have internal predecessors, (220), 35 states have call successors, (35), 18 states have call predecessors, (35), 14 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:24:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2021-10-28 23:24:53,268 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 274 transitions. Word has length 16 [2021-10-28 23:24:53,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:24:53,268 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 274 transitions. [2021-10-28 23:24:53,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 9 states have call successors, (11), 9 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:24:53,269 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 274 transitions. [2021-10-28 23:24:53,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:24:53,270 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:24:53,270 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:24:53,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 23:24:53,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:24:53,489 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:24:53,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:24:53,490 INFO L85 PathProgramCache]: Analyzing trace with hash 443729184, now seen corresponding path program 1 times [2021-10-28 23:24:53,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:24:53,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416174006] [2021-10-28 23:24:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:24:53,491 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:24:53,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:24:53,491 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:24:53,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:24:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:24:53,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:24:53,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:24:53,848 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 [2021-10-28 23:24:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:24:53,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:24:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:24:54,072 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:24:54,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416174006] [2021-10-28 23:24:54,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416174006] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:24:54,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:24:54,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 23:24:54,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931349419] [2021-10-28 23:24:54,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:24:54,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:24:54,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:24:54,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:24:54,075 INFO L87 Difference]: Start difference. First operand 244 states and 274 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:24:55,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:24:55,097 INFO L93 Difference]: Finished difference Result 256 states and 283 transitions. [2021-10-28 23:24:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:24:55,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-28 23:24:55,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:24:55,100 INFO L225 Difference]: With dead ends: 256 [2021-10-28 23:24:55,100 INFO L226 Difference]: Without dead ends: 256 [2021-10-28 23:24:55,100 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:24:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-28 23:24:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 250. [2021-10-28 23:24:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.624113475177305) internal successors, (229), 216 states have internal predecessors, (229), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:24:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 283 transitions. [2021-10-28 23:24:55,113 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 283 transitions. Word has length 17 [2021-10-28 23:24:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:24:55,114 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 283 transitions. [2021-10-28 23:24:55,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:24:55,114 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 283 transitions. [2021-10-28 23:24:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:24:55,115 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:24:55,115 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:24:55,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:24:55,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:24:55,331 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:24:55,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:24:55,331 INFO L85 PathProgramCache]: Analyzing trace with hash 443729185, now seen corresponding path program 1 times [2021-10-28 23:24:55,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:24:55,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601986358] [2021-10-28 23:24:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:24:55,332 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:24:55,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:24:55,333 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:24:55,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:24:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:24:55,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:24:55,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:24:55,710 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 [2021-10-28 23:24:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:24:55,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:24:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:24:56,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:24:56,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601986358] [2021-10-28 23:24:56,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601986358] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:24:56,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:24:56,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-28 23:24:56,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705708020] [2021-10-28 23:24:56,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:24:56,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:24:56,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:24:56,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:24:56,606 INFO L87 Difference]: Start difference. First operand 250 states and 283 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:24:59,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:24:59,412 INFO L93 Difference]: Finished difference Result 254 states and 279 transitions. [2021-10-28 23:24:59,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:24:59,414 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-28 23:24:59,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:24:59,416 INFO L225 Difference]: With dead ends: 254 [2021-10-28 23:24:59,417 INFO L226 Difference]: Without dead ends: 254 [2021-10-28 23:24:59,417 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:24:59,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-28 23:24:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-10-28 23:24:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 141 states have (on average 1.5957446808510638) internal successors, (225), 216 states have internal predecessors, (225), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:24:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2021-10-28 23:24:59,440 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 17 [2021-10-28 23:24:59,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:24:59,441 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2021-10-28 23:24:59,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:24:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2021-10-28 23:24:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:24:59,442 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:24:59,443 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:24:59,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:24:59,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:24:59,658 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:24:59,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:24:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999107, now seen corresponding path program 1 times [2021-10-28 23:24:59,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:24:59,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138005129] [2021-10-28 23:24:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:24:59,659 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:24:59,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:24:59,660 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:24:59,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:25:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:00,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:25:00,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:00,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:00,180 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:00,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138005129] [2021-10-28 23:25:00,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138005129] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:00,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:00,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:25:00,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536052760] [2021-10-28 23:25:00,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:25:00,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:25:00,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:25:00,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:25:00,183 INFO L87 Difference]: Start difference. First operand 250 states and 279 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:25:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:00,696 INFO L93 Difference]: Finished difference Result 249 states and 276 transitions. [2021-10-28 23:25:00,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:00,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-28 23:25:00,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:00,704 INFO L225 Difference]: With dead ends: 249 [2021-10-28 23:25:00,704 INFO L226 Difference]: Without dead ends: 249 [2021-10-28 23:25:00,704 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:25:00,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-28 23:25:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-10-28 23:25:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 141 states have (on average 1.574468085106383) internal successors, (222), 215 states have internal predecessors, (222), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:25:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 276 transitions. [2021-10-28 23:25:00,739 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 276 transitions. Word has length 19 [2021-10-28 23:25:00,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:00,740 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 276 transitions. [2021-10-28 23:25:00,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:25:00,740 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 276 transitions. [2021-10-28 23:25:00,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:25:00,741 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:00,741 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:00,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:00,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:25:00,957 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:25:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1221999108, now seen corresponding path program 1 times [2021-10-28 23:25:00,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:25:00,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90834482] [2021-10-28 23:25:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:00,958 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:25:00,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:25:00,959 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:25:00,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 23:25:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:01,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:25:01,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:01,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:01,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:02,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 23:25:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:02,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:02,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90834482] [2021-10-28 23:25:02,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90834482] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:02,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:02,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 23:25:02,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264973617] [2021-10-28 23:25:02,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:25:02,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:25:02,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:25:02,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:25:02,306 INFO L87 Difference]: Start difference. First operand 249 states and 276 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:25:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:04,742 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2021-10-28 23:25:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:25:04,744 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-10-28 23:25:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:04,746 INFO L225 Difference]: With dead ends: 250 [2021-10-28 23:25:04,746 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 23:25:04,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:25:04,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 23:25:04,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-10-28 23:25:04,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 141 states have (on average 1.553191489361702) internal successors, (219), 214 states have internal predecessors, (219), 35 states have call successors, (35), 19 states have call predecessors, (35), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:25:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 273 transitions. [2021-10-28 23:25:04,760 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 273 transitions. Word has length 19 [2021-10-28 23:25:04,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:04,760 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 273 transitions. [2021-10-28 23:25:04,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:25:04,761 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 273 transitions. [2021-10-28 23:25:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:25:04,763 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:04,763 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:04,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-28 23:25:04,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:25:04,979 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:25:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:04,979 INFO L85 PathProgramCache]: Analyzing trace with hash 695927283, now seen corresponding path program 1 times [2021-10-28 23:25:04,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:25:04,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421779706] [2021-10-28 23:25:04,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:04,980 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:25:04,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:25:04,981 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:25:04,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 23:25:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:05,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:25:05,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:05,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:05,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:05,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421779706] [2021-10-28 23:25:05,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421779706] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:05,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:05,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:25:05,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642594239] [2021-10-28 23:25:05,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:25:05,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:25:05,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:25:05,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:25:05,729 INFO L87 Difference]: Start difference. First operand 248 states and 273 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 23:25:06,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:06,003 INFO L93 Difference]: Finished difference Result 247 states and 271 transitions. [2021-10-28 23:25:06,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:06,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 38 [2021-10-28 23:25:06,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:06,007 INFO L225 Difference]: With dead ends: 247 [2021-10-28 23:25:06,007 INFO L226 Difference]: Without dead ends: 247 [2021-10-28 23:25:06,007 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:25:06,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-28 23:25:06,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-10-28 23:25:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 141 states have (on average 1.5460992907801419) internal successors, (218), 213 states have internal predecessors, (218), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:25:06,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 271 transitions. [2021-10-28 23:25:06,019 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 271 transitions. Word has length 38 [2021-10-28 23:25:06,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:06,020 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 271 transitions. [2021-10-28 23:25:06,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-10-28 23:25:06,021 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 271 transitions. [2021-10-28 23:25:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:25:06,022 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:06,023 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:06,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:06,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:25:06,239 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting inspectErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:25:06,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash 695915251, now seen corresponding path program 1 times [2021-10-28 23:25:06,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:25:06,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988626188] [2021-10-28 23:25:06,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:06,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:25:06,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:25:06,242 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:25:06,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 23:25:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:06,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:25:06,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:07,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:07,593 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-28 23:25:07,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-28 23:25:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:07,628 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:07,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988626188] [2021-10-28 23:25:07,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988626188] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:07,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:07,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-10-28 23:25:07,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580474524] [2021-10-28 23:25:07,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:25:07,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:25:07,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:25:07,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:25:07,631 INFO L87 Difference]: Start difference. First operand 247 states and 271 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:25:08,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:08,888 INFO L93 Difference]: Finished difference Result 242 states and 266 transitions. [2021-10-28 23:25:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:25:08,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2021-10-28 23:25:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:08,891 INFO L225 Difference]: With dead ends: 242 [2021-10-28 23:25:08,891 INFO L226 Difference]: Without dead ends: 242 [2021-10-28 23:25:08,892 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:25:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-28 23:25:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-28 23:25:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 141 states have (on average 1.5106382978723405) internal successors, (213), 208 states have internal predecessors, (213), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:25:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 266 transitions. [2021-10-28 23:25:08,903 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 266 transitions. Word has length 38 [2021-10-28 23:25:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:08,904 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 266 transitions. [2021-10-28 23:25:08,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 23:25:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 266 transitions. [2021-10-28 23:25:08,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:25:08,906 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:08,906 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:08,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-28 23:25:09,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:25:09,111 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting inspectErr1REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:25:09,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash 695915252, now seen corresponding path program 1 times [2021-10-28 23:25:09,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:25:09,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101277596] [2021-10-28 23:25:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:09,112 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:25:09,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:25:09,130 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:25:09,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 23:25:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:09,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:25:09,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:10,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:10,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 23:25:11,580 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:25:11,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2021-10-28 23:25:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:11,831 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:11,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101277596] [2021-10-28 23:25:11,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101277596] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:11,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:11,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-10-28 23:25:11,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020754734] [2021-10-28 23:25:11,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:25:11,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:25:11,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:25:11,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:25:11,833 INFO L87 Difference]: Start difference. First operand 242 states and 266 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 23:25:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:15,385 INFO L93 Difference]: Finished difference Result 240 states and 264 transitions. [2021-10-28 23:25:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:25:15,386 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 38 [2021-10-28 23:25:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:15,388 INFO L225 Difference]: With dead ends: 240 [2021-10-28 23:25:15,388 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 23:25:15,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:25:15,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 23:25:15,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-10-28 23:25:15,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 141 states have (on average 1.49645390070922) internal successors, (211), 206 states have internal predecessors, (211), 34 states have call successors, (34), 19 states have call predecessors, (34), 15 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 23:25:15,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 264 transitions. [2021-10-28 23:25:15,400 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 264 transitions. Word has length 38 [2021-10-28 23:25:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:15,401 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 264 transitions. [2021-10-28 23:25:15,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 7 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 23:25:15,402 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 264 transitions. [2021-10-28 23:25:15,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-28 23:25:15,403 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:15,404 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2021-10-28 23:25:15,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:15,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:25:15,621 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __list_addErr0REQUIRES_VIOLATION === [__list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION, __list_delErr2REQUIRES_VIOLATION, __list_delErr3REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:25:15,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1621786009, now seen corresponding path program 1 times [2021-10-28 23:25:15,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:25:15,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672927289] [2021-10-28 23:25:15,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:15,623 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:25:15,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:25:15,624 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:25:15,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-28 23:25:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:16,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 23:25:16,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:16,458 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:25:16,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 23:25:16,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 23:25:16,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-28 23:25:17,167 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 11 treesize of output 7 [2021-10-28 23:25:17,483 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-28 23:25:17,484 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 21 treesize of output 20 [2021-10-28 23:25:17,665 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-28 23:25:17,666 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 45 [2021-10-28 23:25:23,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-28 23:25:23,940 INFO L354 Elim1Store]: treesize reduction 18, result has 30.8 percent of original size [2021-10-28 23:25:23,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 34 treesize of output 33 [2021-10-28 23:25:28,359 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-28 23:25:28,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2021-10-28 23:25:28,903 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-10-28 23:25:28,904 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 4 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 67 [2021-10-28 23:25:29,675 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-28 23:25:29,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 73 [2021-10-28 23:25:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:30,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:25:38,232 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_42 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_42 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_42) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))) (_ bv1 1))) (not (= (_ bv0 1) (select |c_#valid| v_gl_insert_~node~1.base_42))))) is different from false [2021-10-28 23:25:39,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:25:39,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672927289] [2021-10-28 23:25:39,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 23:25:39,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1122897963] [2021-10-28 23:25:39,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:39,023 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:25:39,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:25:39,032 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-28 23:25:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:40,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 23:25:40,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:40,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-10-28 23:25:40,336 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 [2021-10-28 23:25:41,532 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 11 treesize of output 7 [2021-10-28 23:25:42,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 23:25:42,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-28 23:25:42,753 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-28 23:25:42,754 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 44 [2021-10-28 23:25:43,637 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-28 23:25:43,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 29 treesize of output 40 [2021-10-28 23:25:44,477 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-10-28 23:25:44,477 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 4 new quantified variables, introduced 9 case distinctions, treesize of input 129 treesize of output 69 [2021-10-28 23:25:45,636 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-28 23:25:45,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 57 [2021-10-28 23:25:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:46,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:05,605 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:26:05,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 15182 treesize of output 14780 [2021-10-28 23:26:06,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 23:26:06,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826249997] [2021-10-28 23:26:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:06,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:06,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:06,604 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:06,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 23:26:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:07,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 23:26:07,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:07,436 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 23:26:07,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 23:26:07,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-10-28 23:26:07,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2021-10-28 23:26:07,889 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 11 treesize of output 7 [2021-10-28 23:26:08,427 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-10-28 23:26:08,427 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 21 treesize of output 20 [2021-10-28 23:26:08,722 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-10-28 23:26:08,723 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 45 [2021-10-28 23:26:19,123 INFO L354 Elim1Store]: treesize reduction 23, result has 42.5 percent of original size [2021-10-28 23:26:19,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 34 treesize of output 41 [2021-10-28 23:26:19,507 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-10-28 23:26:19,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 58 [2021-10-28 23:26:20,081 INFO L354 Elim1Store]: treesize reduction 809, result has 3.1 percent of original size [2021-10-28 23:26:20,081 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 4 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 67 [2021-10-28 23:26:20,430 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-10-28 23:26:20,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 73 [2021-10-28 23:26:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:20,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:26:36,057 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~1.base_52 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (gl_insert_~node~1.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~1.base_52)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~1.base_52 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~1.base_52) gl_insert_~node~1.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~1.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~1.offset) v_DerPreprocessor_15) (bvadd gl_insert_~node~1.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))))))) (_ bv1 1))))) is different from false [2021-10-28 23:26:36,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 23:26:36,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:36,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:26:36,669 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:26:36,670 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:26:36,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,677 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-10-28 23:26:36,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-10-28 23:26:36,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,678 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr2REQUIRES_VIOLATION [2021-10-28 23:26:36,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr3REQUIRES_VIOLATION [2021-10-28 23:26:36,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr4REQUIRES_VIOLATION [2021-10-28 23:26:36,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr5REQUIRES_VIOLATION [2021-10-28 23:26:36,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr2REQUIRES_VIOLATION [2021-10-28 23:26:36,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_sort_passErr3REQUIRES_VIOLATION [2021-10-28 23:26:36,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr2REQUIRES_VIOLATION [2021-10-28 23:26:36,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr3REQUIRES_VIOLATION [2021-10-28 23:26:36,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr4REQUIRES_VIOLATION [2021-10-28 23:26:36,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr5REQUIRES_VIOLATION [2021-10-28 23:26:36,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr6REQUIRES_VIOLATION [2021-10-28 23:26:36,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr7REQUIRES_VIOLATION [2021-10-28 23:26:36,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr8REQUIRES_VIOLATION [2021-10-28 23:26:36,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr9REQUIRES_VIOLATION [2021-10-28 23:26:36,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr10REQUIRES_VIOLATION [2021-10-28 23:26:36,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr11REQUIRES_VIOLATION [2021-10-28 23:26:36,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr12REQUIRES_VIOLATION [2021-10-28 23:26:36,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr13REQUIRES_VIOLATION [2021-10-28 23:26:36,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr14REQUIRES_VIOLATION [2021-10-28 23:26:36,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr15REQUIRES_VIOLATION [2021-10-28 23:26:36,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr16REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr17REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr18REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr19REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr20REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr21REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr22REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr23REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr24REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr25REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr26REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr27REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr28REQUIRES_VIOLATION [2021-10-28 23:26:36,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location inspectErr29REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location failErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-10-28 23:26:36,684 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:26:36,685 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-10-28 23:26:36,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-10-28 23:26:36,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-10-28 23:26:36,686 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-10-28 23:26:36,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:36,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:37,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:37,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt [2021-10-28 23:26:37,290 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:37,294 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:26:37,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:26:37 BoogieIcfgContainer [2021-10-28 23:26:37,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:26:37,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:26:37,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:26:37,309 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:26:37,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:22:37" (3/4) ... [2021-10-28 23:26:37,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:26:37,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:26:37,323 INFO L168 Benchmark]: Toolchain (without parser) took 242855.50 ms. Allocated memory was 56.6 MB in the beginning and 144.7 MB in the end (delta: 88.1 MB). Free memory was 32.2 MB in the beginning and 36.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 85.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:37,324 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 37.3 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:37,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 982.81 ms. Allocated memory is still 56.6 MB. Free memory was 32.0 MB in the beginning and 26.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:37,324 INFO L168 Benchmark]: Boogie Preprocessor took 142.41 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.2 MB in the beginning and 47.5 MB in the end (delta: -21.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:37,325 INFO L168 Benchmark]: RCFGBuilder took 1805.49 ms. Allocated memory is still 69.2 MB. Free memory was 47.5 MB in the beginning and 39.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:37,325 INFO L168 Benchmark]: TraceAbstraction took 239896.55 ms. Allocated memory was 69.2 MB in the beginning and 144.7 MB in the end (delta: 75.5 MB). Free memory was 38.4 MB in the beginning and 36.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:37,326 INFO L168 Benchmark]: Witness Printer took 14.02 ms. Allocated memory is still 144.7 MB. Free memory is still 36.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:37,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 37.3 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 982.81 ms. Allocated memory is still 56.6 MB. Free memory was 32.0 MB in the beginning and 26.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 142.41 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.2 MB in the beginning and 47.5 MB in the end (delta: -21.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1805.49 ms. Allocated memory is still 69.2 MB. Free memory was 47.5 MB in the beginning and 39.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 239896.55 ms. Allocated memory was 69.2 MB in the beginning and 144.7 MB in the end (delta: 75.5 MB). Free memory was 38.4 MB in the beginning and 36.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. * Witness Printer took 14.02 ms. Allocated memory is still 144.7 MB. Free memory is still 36.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L850] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L949] CALL gl_read() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new [L879] new->next = next [L880] new->prev = prev [L881] prev->next = new [L890] RET __list_add(new, head, head->next) [L903] RET list_add(&node->linkage, &gl_list) [L904] (&node->nested)->next = (&node->nested) [L904] (&node->nested)->prev = (&node->nested) [L909] RET gl_insert(__VERIFIER_nondet_int()) [L911] COND TRUE __VERIFIER_nondet_int() [L909] CALL gl_insert(__VERIFIER_nondet_int()) [L899] struct node *node = malloc(sizeof *node); [L900] COND FALSE !(!node) [L902] node->value = value [L903] CALL list_add(&node->linkage, &gl_list) [L890] EXPR head->next [L890] CALL __list_add(new, head, head->next) [L878] next->prev = new - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 885]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 886]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 902]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 904]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 862]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 864]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 870]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 871]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 916]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 917]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 918]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 878]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 880]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 881]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 947]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 890]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 894]: 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 19 procedures, 255 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 239.7s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 66.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2940 SDtfs, 3544 SDslu, 10334 SDs, 0 SdLazy, 5259 SolverSat, 560 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 32.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 589 GetRequests, 406 SyntacticMatches, 32 SemanticMatches, 151 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 101.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=8, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 64 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 105.4s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 560 ConstructedInterpolants, 75 QuantifiedInterpolants, 7074 SizeOfPredicates, 143 NumberOfNonLiveVariables, 2248 ConjunctsInSsa, 208 ConjunctsInUnsatCore, 29 InterpolantComputations, 28 PerfectInterpolantSequences, 3/10 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 [2021-10-28 23:26:37,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a20b57a4-4a75-4a77-98f6-8bdab4da362b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...