./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 635ef9d2e243ceee348a174080644f4e80f3ae61 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:19:35,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:19:35,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:19:35,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:19:35,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:19:35,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:19:35,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:19:35,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:19:35,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:19:35,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:19:35,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:19:35,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:19:35,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:19:35,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:19:35,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:19:35,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:19:35,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:19:35,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:19:35,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:19:35,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:19:35,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:19:35,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:19:35,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:19:35,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:19:35,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:19:35,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:19:35,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:19:35,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:19:35,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:19:35,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:19:35,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:19:35,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:19:35,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:19:35,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:19:35,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:19:35,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:19:35,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:19:35,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:19:35,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:19:35,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:19:35,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:19:35,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-11 00:19:35,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:19:35,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:19:35,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:19:35,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:19:35,507 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:19:35,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:19:35,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:19:35,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:19:35,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:19:35,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:19:35,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:19:35,519 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 00:19:35,519 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 00:19:35,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:19:35,520 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 00:19:35,520 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:19:35,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:19:35,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:19:35,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:19:35,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:19:35,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:35,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:19:35,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:19:35,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:19:35,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:19:35,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:19:35,523 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_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635ef9d2e243ceee348a174080644f4e80f3ae61 [2021-10-11 00:19:35,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:19:35,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:19:35,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:19:35,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:19:35,834 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:19:35,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i [2021-10-11 00:19:35,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/data/657d5d105/5b3ed37f27d14adf8223f286952617fb/FLAG6029a8e25 [2021-10-11 00:19:36,469 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:19:36,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2021-10-11 00:19:36,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/data/657d5d105/5b3ed37f27d14adf8223f286952617fb/FLAG6029a8e25 [2021-10-11 00:19:36,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/data/657d5d105/5b3ed37f27d14adf8223f286952617fb [2021-10-11 00:19:36,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:19:36,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-11 00:19:36,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:36,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:19:36,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:19:36,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:36" (1/1) ... [2021-10-11 00:19:36,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed272e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:36, skipping insertion in model container [2021-10-11 00:19:36,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:36" (1/1) ... [2021-10-11 00:19:36,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:19:36,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:19:37,155 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2021-10-11 00:19:37,161 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2021-10-11 00:19:37,166 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2021-10-11 00:19:37,167 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2021-10-11 00:19:37,168 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2021-10-11 00:19:37,169 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2021-10-11 00:19:37,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:37,183 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:19:37,264 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2021-10-11 00:19:37,267 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2021-10-11 00:19:37,271 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2021-10-11 00:19:37,271 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2021-10-11 00:19:37,273 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2021-10-11 00:19:37,274 WARN L226 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_354150b3-f29b-4835-8d00-c143c3e71ea0/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2021-10-11 00:19:37,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:37,348 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:19:37,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37 WrapperNode [2021-10-11 00:19:37,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:37,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:19:37,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:19:37,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:19:37,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... [2021-10-11 00:19:37,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... [2021-10-11 00:19:37,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... [2021-10-11 00:19:37,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... [2021-10-11 00:19:37,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... [2021-10-11 00:19:37,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... [2021-10-11 00:19:37,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... [2021-10-11 00:19:37,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:19:37,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:19:37,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:19:37,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:19:37,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-11 00:19:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:19:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-11 00:19:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-11 00:19:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-11 00:19:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-11 00:19:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-11 00:19:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-11 00:19:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-11 00:19:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-11 00:19:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-11 00:19:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-11 00:19:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-11 00:19:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-11 00:19:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-11 00:19:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-11 00:19:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-11 00:19:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-11 00:19:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-11 00:19:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-11 00:19:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-11 00:19:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-11 00:19:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-11 00:19:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-11 00:19:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-11 00:19:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-11 00:19:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-11 00:19:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-11 00:19:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-11 00:19:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-11 00:19:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-11 00:19:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-11 00:19:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-11 00:19:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-11 00:19:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-11 00:19:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-11 00:19:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-11 00:19:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-11 00:19:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-11 00:19:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-11 00:19:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-11 00:19:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-11 00:19:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-11 00:19:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-11 00:19:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-11 00:19:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-11 00:19:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-11 00:19:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-11 00:19:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-11 00:19:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-11 00:19:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-11 00:19:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-11 00:19:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-11 00:19:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-11 00:19:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-11 00:19:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-11 00:19:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-11 00:19:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-11 00:19:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-11 00:19:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-11 00:19:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-11 00:19:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-11 00:19:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-11 00:19:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-11 00:19:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-11 00:19:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-11 00:19:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-11 00:19:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-11 00:19:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-11 00:19:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-11 00:19:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-11 00:19:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-11 00:19:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-11 00:19:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-11 00:19:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-11 00:19:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-11 00:19:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-11 00:19:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-11 00:19:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-11 00:19:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-11 00:19:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-11 00:19:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-11 00:19:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-11 00:19:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-11 00:19:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-11 00:19:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-11 00:19:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-11 00:19:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-11 00:19:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-11 00:19:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-11 00:19:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-11 00:19:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-11 00:19:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-11 00:19:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-11 00:19:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-11 00:19:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-11 00:19:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-11 00:19:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-11 00:19:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-11 00:19:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-11 00:19:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-11 00:19:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-11 00:19:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-11 00:19:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-11 00:19:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-11 00:19:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-11 00:19:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-11 00:19:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-11 00:19:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-11 00:19:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-11 00:19:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-11 00:19:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-11 00:19:37,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:19:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-11 00:19:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:19:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 00:19:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:19:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 00:19:37,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:19:37,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:19:37,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-11 00:19:37,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:19:37,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:19:38,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:19:38,436 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 00:19:38,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:38 BoogieIcfgContainer [2021-10-11 00:19:38,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:19:38,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:19:38,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:19:38,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:19:38,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:19:36" (1/3) ... [2021-10-11 00:19:38,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118e98f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:38, skipping insertion in model container [2021-10-11 00:19:38,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:37" (2/3) ... [2021-10-11 00:19:38,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118e98f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:38, skipping insertion in model container [2021-10-11 00:19:38,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:38" (3/3) ... [2021-10-11 00:19:38,460 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-sorted-1.i [2021-10-11 00:19:38,481 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:19:38,486 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 80 error locations. [2021-10-11 00:19:38,499 INFO L253 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2021-10-11 00:19:38,546 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:19:38,547 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 00:19:38,547 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:19:38,552 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:19:38,552 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:19:38,553 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:19:38,553 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:19:38,553 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:19:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2021-10-11 00:19:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:19:38,598 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:38,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:38,600 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:38,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:38,610 INFO L82 PathProgramCache]: Analyzing trace with hash 2003086542, now seen corresponding path program 1 times [2021-10-11 00:19:38,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:38,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089904981] [2021-10-11 00:19:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:38,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:38,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089904981] [2021-10-11 00:19:38,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:38,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:38,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714198269] [2021-10-11 00:19:38,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:38,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:38,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:38,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:38,917 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 4 states. [2021-10-11 00:19:39,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:39,395 INFO L93 Difference]: Finished difference Result 185 states and 197 transitions. [2021-10-11 00:19:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:39,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:19:39,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:39,408 INFO L225 Difference]: With dead ends: 185 [2021-10-11 00:19:39,408 INFO L226 Difference]: Without dead ends: 181 [2021-10-11 00:19:39,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:39,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-10-11 00:19:39,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2021-10-11 00:19:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-10-11 00:19:39,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 188 transitions. [2021-10-11 00:19:39,483 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 188 transitions. Word has length 7 [2021-10-11 00:19:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:39,484 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 188 transitions. [2021-10-11 00:19:39,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2021-10-11 00:19:39,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:19:39,484 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:39,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:39,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:19:39,485 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:39,486 INFO L82 PathProgramCache]: Analyzing trace with hash 2003086543, now seen corresponding path program 1 times [2021-10-11 00:19:39,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:39,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238891396] [2021-10-11 00:19:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:39,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:39,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238891396] [2021-10-11 00:19:39,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:39,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:39,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790191642] [2021-10-11 00:19:39,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:39,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:39,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:39,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:39,617 INFO L87 Difference]: Start difference. First operand 177 states and 188 transitions. Second operand 4 states. [2021-10-11 00:19:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:40,011 INFO L93 Difference]: Finished difference Result 178 states and 189 transitions. [2021-10-11 00:19:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:40,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:19:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:40,014 INFO L225 Difference]: With dead ends: 178 [2021-10-11 00:19:40,014 INFO L226 Difference]: Without dead ends: 178 [2021-10-11 00:19:40,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:40,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-10-11 00:19:40,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2021-10-11 00:19:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2021-10-11 00:19:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 185 transitions. [2021-10-11 00:19:40,047 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 185 transitions. Word has length 7 [2021-10-11 00:19:40,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:40,048 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 185 transitions. [2021-10-11 00:19:40,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 185 transitions. [2021-10-11 00:19:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:19:40,049 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:40,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:40,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:19:40,051 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:40,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:40,055 INFO L82 PathProgramCache]: Analyzing trace with hash 2141886456, now seen corresponding path program 1 times [2021-10-11 00:19:40,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:40,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108574110] [2021-10-11 00:19:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:40,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:40,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108574110] [2021-10-11 00:19:40,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:40,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:19:40,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629432653] [2021-10-11 00:19:40,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:19:40,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:40,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:19:40,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:19:40,276 INFO L87 Difference]: Start difference. First operand 174 states and 185 transitions. Second operand 7 states. [2021-10-11 00:19:40,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:40,918 INFO L93 Difference]: Finished difference Result 266 states and 286 transitions. [2021-10-11 00:19:40,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:19:40,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2021-10-11 00:19:40,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:40,922 INFO L225 Difference]: With dead ends: 266 [2021-10-11 00:19:40,922 INFO L226 Difference]: Without dead ends: 266 [2021-10-11 00:19:40,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:19:40,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-11 00:19:40,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 232. [2021-10-11 00:19:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2021-10-11 00:19:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 271 transitions. [2021-10-11 00:19:40,935 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 271 transitions. Word has length 13 [2021-10-11 00:19:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:40,936 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 271 transitions. [2021-10-11 00:19:40,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:19:40,936 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 271 transitions. [2021-10-11 00:19:40,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:19:40,936 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:40,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:40,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:19:40,937 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:40,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1063527808, now seen corresponding path program 1 times [2021-10-11 00:19:40,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:40,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897731051] [2021-10-11 00:19:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:40,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:41,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897731051] [2021-10-11 00:19:41,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:41,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:19:41,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739929752] [2021-10-11 00:19:41,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:41,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:41,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:41,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:41,006 INFO L87 Difference]: Start difference. First operand 232 states and 271 transitions. Second operand 4 states. [2021-10-11 00:19:41,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:41,302 INFO L93 Difference]: Finished difference Result 276 states and 317 transitions. [2021-10-11 00:19:41,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:41,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2021-10-11 00:19:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:41,306 INFO L225 Difference]: With dead ends: 276 [2021-10-11 00:19:41,306 INFO L226 Difference]: Without dead ends: 276 [2021-10-11 00:19:41,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-10-11 00:19:41,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 244. [2021-10-11 00:19:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2021-10-11 00:19:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 293 transitions. [2021-10-11 00:19:41,318 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 293 transitions. Word has length 15 [2021-10-11 00:19:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:41,318 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 293 transitions. [2021-10-11 00:19:41,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:41,318 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 293 transitions. [2021-10-11 00:19:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:19:41,319 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:41,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:41,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:19:41,319 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:41,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1063548570, now seen corresponding path program 1 times [2021-10-11 00:19:41,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:41,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636557525] [2021-10-11 00:19:41,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:41,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:41,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636557525] [2021-10-11 00:19:41,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:41,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:19:41,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950739610] [2021-10-11 00:19:41,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:19:41,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:41,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:19:41,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:19:41,399 INFO L87 Difference]: Start difference. First operand 244 states and 293 transitions. Second operand 6 states. [2021-10-11 00:19:41,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:41,887 INFO L93 Difference]: Finished difference Result 253 states and 299 transitions. [2021-10-11 00:19:41,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:19:41,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:19:41,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:41,890 INFO L225 Difference]: With dead ends: 253 [2021-10-11 00:19:41,890 INFO L226 Difference]: Without dead ends: 253 [2021-10-11 00:19:41,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:19:41,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-11 00:19:41,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 243. [2021-10-11 00:19:41,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2021-10-11 00:19:41,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 290 transitions. [2021-10-11 00:19:41,910 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 290 transitions. Word has length 15 [2021-10-11 00:19:41,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:41,911 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 290 transitions. [2021-10-11 00:19:41,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:19:41,911 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 290 transitions. [2021-10-11 00:19:41,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:19:41,912 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:41,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:41,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:19:41,914 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:41,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1063548571, now seen corresponding path program 1 times [2021-10-11 00:19:41,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:41,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658887490] [2021-10-11 00:19:41,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:42,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:42,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658887490] [2021-10-11 00:19:42,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:42,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:19:42,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347040080] [2021-10-11 00:19:42,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:19:42,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:42,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:19:42,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:19:42,047 INFO L87 Difference]: Start difference. First operand 243 states and 290 transitions. Second operand 6 states. [2021-10-11 00:19:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:42,554 INFO L93 Difference]: Finished difference Result 242 states and 287 transitions. [2021-10-11 00:19:42,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:19:42,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:19:42,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:42,557 INFO L225 Difference]: With dead ends: 242 [2021-10-11 00:19:42,557 INFO L226 Difference]: Without dead ends: 242 [2021-10-11 00:19:42,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:19:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-11 00:19:42,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-11 00:19:42,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2021-10-11 00:19:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 287 transitions. [2021-10-11 00:19:42,564 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 287 transitions. Word has length 15 [2021-10-11 00:19:42,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:42,565 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 287 transitions. [2021-10-11 00:19:42,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:19:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 287 transitions. [2021-10-11 00:19:42,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:19:42,566 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:42,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:42,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:19:42,566 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:42,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:42,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1958205468, now seen corresponding path program 1 times [2021-10-11 00:19:42,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:42,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604617082] [2021-10-11 00:19:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:42,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:42,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604617082] [2021-10-11 00:19:42,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:42,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 00:19:42,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403828595] [2021-10-11 00:19:42,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 00:19:42,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:42,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 00:19:42,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:19:42,700 INFO L87 Difference]: Start difference. First operand 242 states and 287 transitions. Second operand 10 states. [2021-10-11 00:19:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:43,436 INFO L93 Difference]: Finished difference Result 239 states and 281 transitions. [2021-10-11 00:19:43,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 00:19:43,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2021-10-11 00:19:43,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:43,438 INFO L225 Difference]: With dead ends: 239 [2021-10-11 00:19:43,438 INFO L226 Difference]: Without dead ends: 239 [2021-10-11 00:19:43,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:19:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-10-11 00:19:43,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 231. [2021-10-11 00:19:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2021-10-11 00:19:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 278 transitions. [2021-10-11 00:19:43,446 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 278 transitions. Word has length 19 [2021-10-11 00:19:43,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:43,446 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 278 transitions. [2021-10-11 00:19:43,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 00:19:43,446 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 278 transitions. [2021-10-11 00:19:43,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:19:43,447 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:43,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:43,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:19:43,449 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:43,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:43,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1958205469, now seen corresponding path program 1 times [2021-10-11 00:19:43,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:43,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318256936] [2021-10-11 00:19:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:43,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:43,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:43,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318256936] [2021-10-11 00:19:43,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:43,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-11 00:19:43,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890266492] [2021-10-11 00:19:43,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 00:19:43,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:43,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 00:19:43,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:19:43,706 INFO L87 Difference]: Start difference. First operand 231 states and 278 transitions. Second operand 11 states. [2021-10-11 00:19:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:44,758 INFO L93 Difference]: Finished difference Result 234 states and 272 transitions. [2021-10-11 00:19:44,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-11 00:19:44,758 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2021-10-11 00:19:44,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:44,760 INFO L225 Difference]: With dead ends: 234 [2021-10-11 00:19:44,760 INFO L226 Difference]: Without dead ends: 234 [2021-10-11 00:19:44,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-10-11 00:19:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-10-11 00:19:44,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 218. [2021-10-11 00:19:44,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2021-10-11 00:19:44,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 261 transitions. [2021-10-11 00:19:44,773 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 261 transitions. Word has length 19 [2021-10-11 00:19:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:44,774 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 261 transitions. [2021-10-11 00:19:44,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 00:19:44,774 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 261 transitions. [2021-10-11 00:19:44,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:19:44,776 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:44,776 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:44,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:19:44,777 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:44,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:44,777 INFO L82 PathProgramCache]: Analyzing trace with hash 468054820, now seen corresponding path program 1 times [2021-10-11 00:19:44,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:44,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654731795] [2021-10-11 00:19:44,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:44,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:44,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:19:44,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654731795] [2021-10-11 00:19:44,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:44,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:19:44,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279737968] [2021-10-11 00:19:44,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:19:44,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:44,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:19:44,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:19:44,870 INFO L87 Difference]: Start difference. First operand 218 states and 261 transitions. Second operand 5 states. [2021-10-11 00:19:45,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:45,215 INFO L93 Difference]: Finished difference Result 255 states and 278 transitions. [2021-10-11 00:19:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:19:45,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2021-10-11 00:19:45,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:45,217 INFO L225 Difference]: With dead ends: 255 [2021-10-11 00:19:45,218 INFO L226 Difference]: Without dead ends: 255 [2021-10-11 00:19:45,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:19:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-11 00:19:45,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2021-10-11 00:19:45,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2021-10-11 00:19:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2021-10-11 00:19:45,224 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 28 [2021-10-11 00:19:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:45,226 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2021-10-11 00:19:45,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:19:45,227 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2021-10-11 00:19:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:19:45,228 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:45,228 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:45,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:19:45,228 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:45,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2079686989, now seen corresponding path program 1 times [2021-10-11 00:19:45,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:45,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091601774] [2021-10-11 00:19:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:45,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:45,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091601774] [2021-10-11 00:19:45,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698213533] [2021-10-11 00:19:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:45,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-11 00:19:45,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:45,906 INFO L382 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 [2021-10-11 00:19:45,908 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:45,914 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:45,915 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:45,916 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-10-11 00:19:46,016 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:46,016 INFO L382 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 17 treesize of output 39 [2021-10-11 00:19:46,021 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:19:46,026 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:46,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:46,040 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:46,041 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2021-10-11 00:19:46,121 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-11 00:19:46,122 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:46,137 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:46,140 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:46,140 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2021-10-11 00:19:46,252 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:46,252 INFO L382 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 57 [2021-10-11 00:19:46,258 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-10-11 00:19:46,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:19:46,262 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-10-11 00:19:46,308 INFO L625 ElimStorePlain]: treesize reduction 33, result has 57.7 percent of original size [2021-10-11 00:19:46,310 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:46,310 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:45 [2021-10-11 00:19:46,538 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:46,539 INFO L382 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 49 treesize of output 110 [2021-10-11 00:19:46,544 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:46,582 INFO L625 ElimStorePlain]: treesize reduction 16, result has 74.6 percent of original size [2021-10-11 00:19:46,584 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:46,585 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:32 [2021-10-11 00:19:46,684 INFO L348 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2021-10-11 00:19:46,684 INFO L382 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 60 treesize of output 79 [2021-10-11 00:19:46,688 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-10-11 00:19:46,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:19:46,691 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:46,701 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:46,702 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:46,703 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:37 [2021-10-11 00:19:47,000 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:47,001 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2021-10-11 00:19:47,003 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:47,013 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:47,018 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:47,018 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:15 [2021-10-11 00:19:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:47,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:19:47,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2021-10-11 00:19:47,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754160313] [2021-10-11 00:19:47,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-10-11 00:19:47,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:47,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-11 00:19:47,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2021-10-11 00:19:47,073 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand 27 states. [2021-10-11 00:19:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:49,585 INFO L93 Difference]: Finished difference Result 419 states and 476 transitions. [2021-10-11 00:19:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-11 00:19:49,586 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 34 [2021-10-11 00:19:49,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:49,589 INFO L225 Difference]: With dead ends: 419 [2021-10-11 00:19:49,589 INFO L226 Difference]: Without dead ends: 419 [2021-10-11 00:19:49,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=391, Invalid=1771, Unknown=0, NotChecked=0, Total=2162 [2021-10-11 00:19:49,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-10-11 00:19:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 240. [2021-10-11 00:19:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2021-10-11 00:19:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 286 transitions. [2021-10-11 00:19:49,599 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 286 transitions. Word has length 34 [2021-10-11 00:19:49,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:49,599 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 286 transitions. [2021-10-11 00:19:49,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-10-11 00:19:49,600 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 286 transitions. [2021-10-11 00:19:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:19:49,601 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:49,601 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:49,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-11 00:19:49,829 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:49,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:49,830 INFO L82 PathProgramCache]: Analyzing trace with hash -2079686988, now seen corresponding path program 1 times [2021-10-11 00:19:49,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:49,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127032991] [2021-10-11 00:19:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:50,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:50,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127032991] [2021-10-11 00:19:50,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764667126] [2021-10-11 00:19:50,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:50,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-11 00:19:50,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:50,394 INFO L382 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 [2021-10-11 00:19:50,395 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,399 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,400 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,400 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-10-11 00:19:50,476 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_84|], 1=[|v_#valid_93|]} [2021-10-11 00:19:50,481 INFO L382 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 [2021-10-11 00:19:50,482 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,506 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,507 INFO L382 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 11 treesize of output 15 [2021-10-11 00:19:50,510 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:19:50,515 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,528 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,528 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,531 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2021-10-11 00:19:50,577 INFO L382 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 [2021-10-11 00:19:50,578 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,593 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,598 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-11 00:19:50,599 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,612 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,612 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:34 [2021-10-11 00:19:50,700 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,701 INFO L382 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 70 [2021-10-11 00:19:50,704 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 3, 2, 1] term [2021-10-11 00:19:50,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 00:19:50,707 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-10-11 00:19:50,754 INFO L625 ElimStorePlain]: treesize reduction 46, result has 59.6 percent of original size [2021-10-11 00:19:50,760 INFO L382 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 29 treesize of output 24 [2021-10-11 00:19:50,761 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:50,800 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:50,802 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:50,802 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:60 [2021-10-11 00:19:51,026 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:51,027 INFO L382 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 62 treesize of output 119 [2021-10-11 00:19:51,038 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,085 INFO L625 ElimStorePlain]: treesize reduction 16, result has 81.2 percent of original size [2021-10-11 00:19:51,100 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:51,100 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 52 [2021-10-11 00:19:51,102 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,147 INFO L625 ElimStorePlain]: treesize reduction 16, result has 81.6 percent of original size [2021-10-11 00:19:51,160 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:19:51,162 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:19:51,163 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,163 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:83, output treesize:41 [2021-10-11 00:19:51,280 INFO L348 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2021-10-11 00:19:51,281 INFO L382 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 102 treesize of output 105 [2021-10-11 00:19:51,284 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 3, 2, 1] term [2021-10-11 00:19:51,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-10-11 00:19:51,286 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,303 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:51,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:19:51,310 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 25 [2021-10-11 00:19:51,312 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:51,328 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:51,328 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:112, output treesize:50 [2021-10-11 00:19:51,563 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:51,570 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2021-10-11 00:19:51,572 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,586 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:51,590 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-11 00:19:51,592 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:51,604 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:51,604 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:67, output treesize:9 [2021-10-11 00:19:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:51,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:19:51,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2021-10-11 00:19:51,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213003204] [2021-10-11 00:19:51,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-10-11 00:19:51,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:51,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-11 00:19:51,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2021-10-11 00:19:51,617 INFO L87 Difference]: Start difference. First operand 240 states and 286 transitions. Second operand 26 states. [2021-10-11 00:19:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:54,189 INFO L93 Difference]: Finished difference Result 413 states and 465 transitions. [2021-10-11 00:19:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-11 00:19:54,190 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2021-10-11 00:19:54,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:54,192 INFO L225 Difference]: With dead ends: 413 [2021-10-11 00:19:54,192 INFO L226 Difference]: Without dead ends: 413 [2021-10-11 00:19:54,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=340, Invalid=1552, Unknown=0, NotChecked=0, Total=1892 [2021-10-11 00:19:54,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-11 00:19:54,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 240. [2021-10-11 00:19:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2021-10-11 00:19:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 285 transitions. [2021-10-11 00:19:54,201 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 285 transitions. Word has length 34 [2021-10-11 00:19:54,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:54,201 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 285 transitions. [2021-10-11 00:19:54,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-10-11 00:19:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 285 transitions. [2021-10-11 00:19:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-11 00:19:54,203 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:54,203 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:54,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:54,428 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:54,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:54,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1410660703, now seen corresponding path program 1 times [2021-10-11 00:19:54,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:54,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239060188] [2021-10-11 00:19:54,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:54,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:19:54,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239060188] [2021-10-11 00:19:54,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:54,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:19:54,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115502512] [2021-10-11 00:19:54,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:54,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:54,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:54,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:54,501 INFO L87 Difference]: Start difference. First operand 240 states and 285 transitions. Second operand 4 states. [2021-10-11 00:19:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:54,727 INFO L93 Difference]: Finished difference Result 242 states and 287 transitions. [2021-10-11 00:19:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:54,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2021-10-11 00:19:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:54,729 INFO L225 Difference]: With dead ends: 242 [2021-10-11 00:19:54,729 INFO L226 Difference]: Without dead ends: 242 [2021-10-11 00:19:54,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-11 00:19:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-11 00:19:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2021-10-11 00:19:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 287 transitions. [2021-10-11 00:19:54,736 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 287 transitions. Word has length 36 [2021-10-11 00:19:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:54,736 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 287 transitions. [2021-10-11 00:19:54,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 287 transitions. [2021-10-11 00:19:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-11 00:19:54,744 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:54,744 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:54,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:19:54,744 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:54,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:54,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1432474463, now seen corresponding path program 1 times [2021-10-11 00:19:54,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:54,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975314131] [2021-10-11 00:19:54,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:54,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:19:54,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975314131] [2021-10-11 00:19:54,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:54,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:19:54,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445266830] [2021-10-11 00:19:54,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:19:54,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:54,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:19:54,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:19:54,831 INFO L87 Difference]: Start difference. First operand 242 states and 287 transitions. Second operand 7 states. [2021-10-11 00:19:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:55,285 INFO L93 Difference]: Finished difference Result 267 states and 317 transitions. [2021-10-11 00:19:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:19:55,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2021-10-11 00:19:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:55,287 INFO L225 Difference]: With dead ends: 267 [2021-10-11 00:19:55,287 INFO L226 Difference]: Without dead ends: 267 [2021-10-11 00:19:55,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:19:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-10-11 00:19:55,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 241. [2021-10-11 00:19:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2021-10-11 00:19:55,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 286 transitions. [2021-10-11 00:19:55,295 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 286 transitions. Word has length 39 [2021-10-11 00:19:55,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:55,295 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 286 transitions. [2021-10-11 00:19:55,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:19:55,295 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 286 transitions. [2021-10-11 00:19:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-11 00:19:55,296 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:55,296 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:55,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 00:19:55,296 INFO L429 AbstractCegarLoop]: === Iteration 14 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:19:55,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:55,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1432474462, now seen corresponding path program 1 times [2021-10-11 00:19:55,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:55,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024944231] [2021-10-11 00:19:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:55,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:19:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:55,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024944231] [2021-10-11 00:19:55,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586239497] [2021-10-11 00:19:55,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:55,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-11 00:19:55,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:55,921 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:55,922 INFO L382 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 11 treesize of output 15 [2021-10-11 00:19:55,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:19:55,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:19:55,929 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:55,937 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:55,938 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:55,938 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2021-10-11 00:19:55,977 INFO L382 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 [2021-10-11 00:19:55,977 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:55,988 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:55,992 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-11 00:19:55,993 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,003 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,004 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,004 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:25 [2021-10-11 00:19:56,086 INFO L382 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 29 treesize of output 24 [2021-10-11 00:19:56,087 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,102 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,124 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,124 INFO L382 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 61 [2021-10-11 00:19:56,128 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-10-11 00:19:56,128 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:19:56,130 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-10-11 00:19:56,163 INFO L625 ElimStorePlain]: treesize reduction 37, result has 58.0 percent of original size [2021-10-11 00:19:56,165 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:56,165 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:51 [2021-10-11 00:19:56,240 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,240 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 37 [2021-10-11 00:19:56,242 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,249 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,250 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:56,250 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:24 [2021-10-11 00:19:56,351 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,351 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 52 [2021-10-11 00:19:56,355 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,381 INFO L625 ElimStorePlain]: treesize reduction 16, result has 69.8 percent of original size [2021-10-11 00:19:56,383 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,383 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:22 [2021-10-11 00:19:56,450 INFO L348 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-11 00:19:56,451 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 21 [2021-10-11 00:19:56,452 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,471 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 00:19:56,471 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:22 [2021-10-11 00:19:56,869 INFO L443 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.base|], 2=[|#memory_$Pointer$.offset|]} [2021-10-11 00:19:56,874 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 15 [2021-10-11 00:19:56,875 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,887 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,890 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2021-10-11 00:19:56,891 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,899 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:19:56,901 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:19:56,901 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:54, output treesize:11 [2021-10-11 00:19:56,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:56,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:19:56,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 33 [2021-10-11 00:19:56,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616432074] [2021-10-11 00:19:56,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-10-11 00:19:56,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-11 00:19:56,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1000, Unknown=0, NotChecked=0, Total=1122 [2021-10-11 00:19:56,980 INFO L87 Difference]: Start difference. First operand 241 states and 286 transitions. Second operand 34 states. [2021-10-11 00:20:00,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:00,320 INFO L93 Difference]: Finished difference Result 453 states and 508 transitions. [2021-10-11 00:20:00,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-11 00:20:00,320 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 39 [2021-10-11 00:20:00,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:00,323 INFO L225 Difference]: With dead ends: 453 [2021-10-11 00:20:00,323 INFO L226 Difference]: Without dead ends: 453 [2021-10-11 00:20:00,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=644, Invalid=3262, Unknown=0, NotChecked=0, Total=3906 [2021-10-11 00:20:00,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-10-11 00:20:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 245. [2021-10-11 00:20:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-10-11 00:20:00,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 291 transitions. [2021-10-11 00:20:00,333 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 291 transitions. Word has length 39 [2021-10-11 00:20:00,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:00,333 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 291 transitions. [2021-10-11 00:20:00,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-10-11 00:20:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 291 transitions. [2021-10-11 00:20:00,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-11 00:20:00,334 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:00,335 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:00,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-11 00:20:00,548 INFO L429 AbstractCegarLoop]: === Iteration 15 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:20:00,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:00,549 INFO L82 PathProgramCache]: Analyzing trace with hash -216253053, now seen corresponding path program 1 times [2021-10-11 00:20:00,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:00,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644075502] [2021-10-11 00:20:00,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:00,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:20:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:20:00,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644075502] [2021-10-11 00:20:00,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:00,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:20:00,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169414155] [2021-10-11 00:20:00,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:20:00,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:00,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:20:00,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:20:00,683 INFO L87 Difference]: Start difference. First operand 245 states and 291 transitions. Second operand 8 states. [2021-10-11 00:20:01,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:01,034 INFO L93 Difference]: Finished difference Result 262 states and 310 transitions. [2021-10-11 00:20:01,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 00:20:01,035 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2021-10-11 00:20:01,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:01,036 INFO L225 Difference]: With dead ends: 262 [2021-10-11 00:20:01,036 INFO L226 Difference]: Without dead ends: 262 [2021-10-11 00:20:01,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-11 00:20:01,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-10-11 00:20:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 253. [2021-10-11 00:20:01,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2021-10-11 00:20:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 300 transitions. [2021-10-11 00:20:01,045 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 300 transitions. Word has length 39 [2021-10-11 00:20:01,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:01,045 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 300 transitions. [2021-10-11 00:20:01,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:20:01,046 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 300 transitions. [2021-10-11 00:20:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-11 00:20:01,046 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:01,046 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:01,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 00:20:01,047 INFO L429 AbstractCegarLoop]: === Iteration 16 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:20:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:01,047 INFO L82 PathProgramCache]: Analyzing trace with hash -216193471, now seen corresponding path program 1 times [2021-10-11 00:20:01,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:01,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94242645] [2021-10-11 00:20:01,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:01,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:20:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:20:01,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94242645] [2021-10-11 00:20:01,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:01,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:01,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577378448] [2021-10-11 00:20:01,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:20:01,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:01,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:20:01,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:20:01,108 INFO L87 Difference]: Start difference. First operand 253 states and 300 transitions. Second operand 4 states. [2021-10-11 00:20:01,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:01,380 INFO L93 Difference]: Finished difference Result 251 states and 292 transitions. [2021-10-11 00:20:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:20:01,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2021-10-11 00:20:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:01,382 INFO L225 Difference]: With dead ends: 251 [2021-10-11 00:20:01,382 INFO L226 Difference]: Without dead ends: 251 [2021-10-11 00:20:01,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:20:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-10-11 00:20:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2021-10-11 00:20:01,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2021-10-11 00:20:01,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 292 transitions. [2021-10-11 00:20:01,390 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 292 transitions. Word has length 39 [2021-10-11 00:20:01,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:01,390 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 292 transitions. [2021-10-11 00:20:01,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:20:01,390 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 292 transitions. [2021-10-11 00:20:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-11 00:20:01,391 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:01,391 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:01,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 00:20:01,391 INFO L429 AbstractCegarLoop]: === Iteration 17 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:20:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:01,392 INFO L82 PathProgramCache]: Analyzing trace with hash -216193470, now seen corresponding path program 1 times [2021-10-11 00:20:01,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:01,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961962386] [2021-10-11 00:20:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:01,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:20:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:20:01,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961962386] [2021-10-11 00:20:01,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:01,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:20:01,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90013501] [2021-10-11 00:20:01,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:20:01,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:01,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:20:01,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:20:01,474 INFO L87 Difference]: Start difference. First operand 249 states and 292 transitions. Second operand 4 states. [2021-10-11 00:20:01,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:01,704 INFO L93 Difference]: Finished difference Result 245 states and 284 transitions. [2021-10-11 00:20:01,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:20:01,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2021-10-11 00:20:01,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:01,706 INFO L225 Difference]: With dead ends: 245 [2021-10-11 00:20:01,706 INFO L226 Difference]: Without dead ends: 245 [2021-10-11 00:20:01,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:20:01,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-11 00:20:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2021-10-11 00:20:01,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2021-10-11 00:20:01,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 284 transitions. [2021-10-11 00:20:01,712 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 284 transitions. Word has length 39 [2021-10-11 00:20:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:01,713 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 284 transitions. [2021-10-11 00:20:01,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:20:01,713 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 284 transitions. [2021-10-11 00:20:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-11 00:20:01,713 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:01,714 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:01,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-11 00:20:01,714 INFO L429 AbstractCegarLoop]: === Iteration 18 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:20:01,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:01,715 INFO L82 PathProgramCache]: Analyzing trace with hash -182708786, now seen corresponding path program 1 times [2021-10-11 00:20:01,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:01,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031901692] [2021-10-11 00:20:01,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:01,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:20:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:20:01,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031901692] [2021-10-11 00:20:01,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:01,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:20:01,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215545804] [2021-10-11 00:20:01,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:20:01,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:01,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:20:01,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:20:01,793 INFO L87 Difference]: Start difference. First operand 245 states and 284 transitions. Second operand 7 states. [2021-10-11 00:20:02,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:02,296 INFO L93 Difference]: Finished difference Result 268 states and 308 transitions. [2021-10-11 00:20:02,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:20:02,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2021-10-11 00:20:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:02,298 INFO L225 Difference]: With dead ends: 268 [2021-10-11 00:20:02,299 INFO L226 Difference]: Without dead ends: 268 [2021-10-11 00:20:02,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:20:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-10-11 00:20:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 252. [2021-10-11 00:20:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-10-11 00:20:02,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 296 transitions. [2021-10-11 00:20:02,311 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 296 transitions. Word has length 43 [2021-10-11 00:20:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:02,312 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 296 transitions. [2021-10-11 00:20:02,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:20:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 296 transitions. [2021-10-11 00:20:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-11 00:20:02,313 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:02,314 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:02,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-11 00:20:02,314 INFO L429 AbstractCegarLoop]: === Iteration 19 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:20:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:02,315 INFO L82 PathProgramCache]: Analyzing trace with hash -182708785, now seen corresponding path program 1 times [2021-10-11 00:20:02,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:02,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363650776] [2021-10-11 00:20:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:02,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:20:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:02,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363650776] [2021-10-11 00:20:02,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346773256] [2021-10-11 00:20:02,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:02,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 00:20:02,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:03,024 INFO L382 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 [2021-10-11 00:20:03,025 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:03,033 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:03,035 INFO L382 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 28 treesize of output 16 [2021-10-11 00:20:03,037 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:03,042 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:03,043 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:20:03,043 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:13 [2021-10-11 00:20:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:20:03,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:03,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 20 [2021-10-11 00:20:03,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024426958] [2021-10-11 00:20:03,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:20:03,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:03,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:20:03,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2021-10-11 00:20:03,104 INFO L87 Difference]: Start difference. First operand 252 states and 296 transitions. Second operand 6 states. [2021-10-11 00:20:03,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:03,423 INFO L93 Difference]: Finished difference Result 264 states and 303 transitions. [2021-10-11 00:20:03,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:20:03,424 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2021-10-11 00:20:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:03,425 INFO L225 Difference]: With dead ends: 264 [2021-10-11 00:20:03,425 INFO L226 Difference]: Without dead ends: 264 [2021-10-11 00:20:03,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-11 00:20:03,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-10-11 00:20:03,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 250. [2021-10-11 00:20:03,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2021-10-11 00:20:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 291 transitions. [2021-10-11 00:20:03,433 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 291 transitions. Word has length 43 [2021-10-11 00:20:03,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:03,433 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 291 transitions. [2021-10-11 00:20:03,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:20:03,434 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 291 transitions. [2021-10-11 00:20:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-11 00:20:03,434 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:03,435 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:03,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:03,652 INFO L429 AbstractCegarLoop]: === Iteration 20 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:20:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:03,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1599864729, now seen corresponding path program 1 times [2021-10-11 00:20:03,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:03,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098477065] [2021-10-11 00:20:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:03,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:20:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:04,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098477065] [2021-10-11 00:20:04,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374384847] [2021-10-11 00:20:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:04,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 56 conjunts are in the unsatisfiable core [2021-10-11 00:20:04,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:04,161 INFO L382 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 [2021-10-11 00:20:04,161 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,165 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,166 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,166 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-10-11 00:20:04,230 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,231 INFO L382 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 11 treesize of output 15 [2021-10-11 00:20:04,232 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:20:04,238 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,246 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,246 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,246 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2021-10-11 00:20:04,280 INFO L382 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 [2021-10-11 00:20:04,281 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,291 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,296 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-11 00:20:04,297 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,311 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,312 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,312 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:25 [2021-10-11 00:20:04,390 INFO L382 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 29 treesize of output 24 [2021-10-11 00:20:04,391 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,402 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,418 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,418 INFO L382 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 61 [2021-10-11 00:20:04,424 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2021-10-11 00:20:04,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 00:20:04,426 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-10-11 00:20:04,462 INFO L625 ElimStorePlain]: treesize reduction 37, result has 58.0 percent of original size [2021-10-11 00:20:04,463 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:20:04,463 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:51 [2021-10-11 00:20:04,661 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,662 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 63 [2021-10-11 00:20:04,664 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,728 INFO L625 ElimStorePlain]: treesize reduction 23, result has 77.5 percent of original size [2021-10-11 00:20:04,780 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,780 INFO L382 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 59 treesize of output 120 [2021-10-11 00:20:04,782 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,825 INFO L625 ElimStorePlain]: treesize reduction 16, result has 81.2 percent of original size [2021-10-11 00:20:04,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:20:04,829 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:20:04,830 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,830 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:84, output treesize:39 [2021-10-11 00:20:04,928 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 25 [2021-10-11 00:20:04,929 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,943 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 00:20:04,956 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,957 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 55 [2021-10-11 00:20:04,958 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,969 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:04,969 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:20:04,970 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:41 [2021-10-11 00:20:05,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-11 00:20:05,257 INFO L348 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-10-11 00:20:05,257 INFO L382 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 61 treesize of output 43 [2021-10-11 00:20:05,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 00:20:05,261 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:20:05,275 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:05,283 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:05,283 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2021-10-11 00:20:05,284 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 00:20:05,293 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:20:05,296 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:20:05,296 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:74, output treesize:7 [2021-10-11 00:20:05,313 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:05,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:20:05,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 32 [2021-10-11 00:20:05,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917214516] [2021-10-11 00:20:05,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-10-11 00:20:05,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:05,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-11 00:20:05,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2021-10-11 00:20:05,316 INFO L87 Difference]: Start difference. First operand 250 states and 291 transitions. Second operand 32 states. [2021-10-11 00:20:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:08,066 INFO L93 Difference]: Finished difference Result 415 states and 469 transitions. [2021-10-11 00:20:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-11 00:20:08,067 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 43 [2021-10-11 00:20:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:08,069 INFO L225 Difference]: With dead ends: 415 [2021-10-11 00:20:08,069 INFO L226 Difference]: Without dead ends: 415 [2021-10-11 00:20:08,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=435, Invalid=2871, Unknown=0, NotChecked=0, Total=3306 [2021-10-11 00:20:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-10-11 00:20:08,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 253. [2021-10-11 00:20:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2021-10-11 00:20:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 294 transitions. [2021-10-11 00:20:08,079 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 294 transitions. Word has length 43 [2021-10-11 00:20:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:08,079 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 294 transitions. [2021-10-11 00:20:08,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2021-10-11 00:20:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 294 transitions. [2021-10-11 00:20:08,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-11 00:20:08,080 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:08,080 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:08,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:08,308 INFO L429 AbstractCegarLoop]: === Iteration 21 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ASSERT_VIOLATIONMEMORY_LEAK, mainErr30REQUIRES_VIOLATION, mainErr72REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr68REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr66REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_LEAK, mainErr40REQUIRES_VIOLATION, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr74REQUIRES_VIOLATION, mainErr73REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr77ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr69REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr76ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr67REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr78ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_LEAK, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr79ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr75REQUIRES_VIOLATION]=== [2021-10-11 00:20:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:08,308 INFO L82 PathProgramCache]: Analyzing trace with hash 510519694, now seen corresponding path program 1 times [2021-10-11 00:20:08,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:08,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187952223] [2021-10-11 00:20:08,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:08,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:08,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:08,433 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:08,433 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:20:08,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-11 00:20:08,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:08 BoogieIcfgContainer [2021-10-11 00:20:08,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:20:08,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:20:08,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:20:08,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:20:08,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:38" (3/4) ... [2021-10-11 00:20:08,491 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:20:08,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_354150b3-f29b-4835-8d00-c143c3e71ea0/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:20:08,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:20:08,556 INFO L168 Benchmark]: Toolchain (without parser) took 31792.48 ms. Allocated memory was 88.1 MB in the beginning and 297.8 MB in the end (delta: 209.7 MB). Free memory was 51.8 MB in the beginning and 247.0 MB in the end (delta: -195.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,557 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 88.1 MB. Free memory was 69.7 MB in the beginning and 69.6 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:08,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.12 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.7 MB in the beginning and 69.9 MB in the end (delta: -18.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,558 INFO L168 Benchmark]: Boogie Preprocessor took 88.28 ms. Allocated memory is still 107.0 MB. Free memory was 69.9 MB in the beginning and 66.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,558 INFO L168 Benchmark]: RCFGBuilder took 1001.62 ms. Allocated memory is still 107.0 MB. Free memory was 66.7 MB in the beginning and 41.0 MB in the end (delta: 25.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,558 INFO L168 Benchmark]: TraceAbstraction took 30045.37 ms. Allocated memory was 107.0 MB in the beginning and 297.8 MB in the end (delta: 190.8 MB). Free memory was 40.4 MB in the beginning and 250.1 MB in the end (delta: -209.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:08,559 INFO L168 Benchmark]: Witness Printer took 67.29 ms. Allocated memory is still 297.8 MB. Free memory was 250.1 MB in the beginning and 247.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:08,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 88.1 MB. Free memory was 69.7 MB in the beginning and 69.6 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 583.12 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.7 MB in the beginning and 69.9 MB in the end (delta: -18.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.28 ms. Allocated memory is still 107.0 MB. Free memory was 69.9 MB in the beginning and 66.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1001.62 ms. Allocated memory is still 107.0 MB. Free memory was 66.7 MB in the beginning and 41.0 MB in the end (delta: 25.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30045.37 ms. Allocated memory was 107.0 MB in the beginning and 297.8 MB in the end (delta: 190.8 MB). Free memory was 40.4 MB in the beginning and 250.1 MB in the end (delta: -209.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 67.29 ms. Allocated memory is still 297.8 MB. Free memory was 250.1 MB in the beginning and 247.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1038]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1000] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1002] SLL* x = head; [L1003] int marked = 0; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, marked=0, x={-1:0}] [L1006] COND TRUE __VERIFIER_nondet_int() || !marked [L1009] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}] [L1010] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}] [L1010] x->next->prev = x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}] [L1011] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}] [L1011] x = x->next [L1012] x->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-2:0}] [L1014] COND TRUE __VERIFIER_nondet_int() [L1016] marked = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=1, x={-2:0}] [L1019] COND TRUE \read(marked) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=1, x={-2:0}] [L1020] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=1, x={-2:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1025] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=1, x={-1:0}] [L1027] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=1, x={-1:0}] [L1028] marked = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}] [L1030] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}] [L1030] x->next != ((void*)0) && x->next->data == 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}, x->next != ((void*)0) && x->next->data == 0=1] [L1030] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}, x->next={-2:0}, x->next != ((void*)0) && x->next->data == 0=1] [L1030] EXPR x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}, x->next={-2:0}, x->next != ((void*)0) && x->next->data == 0=1, x->next->data=1] [L1030] x->next != ((void*)0) && x->next->data == 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}, x->next={-2:0}, x->next != ((void*)0) && x->next->data == 0=0, x->next->data=1] [L1030] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1035] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}] [L1035] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1035] x->next != ((void*)0) && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}, x->next != ((void*)0) && __VERIFIER_nondet_int()=1] [L1035] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1037] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-1:0}, x->next={-2:0}] [L1037] x = x->next [L1038] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-2:0}, x->data=1] [L1038] COND TRUE !(x->data != 1) [L1038] reach_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, marked=0, x={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 186 locations, 80 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.8s, OverallIterations: 21, TraceHistogramMax: 2, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2258 SDtfs, 7342 SDslu, 7405 SDs, 0 SdLazy, 14050 SolverSat, 775 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 181 SyntacticMatches, 8 SemanticMatches, 321 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2898 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=253occurred in iteration=15, 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, 20 MinimizatonAttempts, 936 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 804 NumberOfCodeBlocks, 804 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 734 ConstructedInterpolants, 53 QuantifiedInterpolants, 303193 SizeOfPredicates, 85 NumberOfNonLiveVariables, 1112 ConjunctsInSsa, 194 ConjunctsInUnsatCore, 25 InterpolantComputations, 16 PerfectInterpolantSequences, 22/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...