./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt --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 95135695b4ab9cb9c416390540cae35b9fbb32e4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-4e77c04 [2021-10-13 00:58:01,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:58:01,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:58:01,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:58:01,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:58:01,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:58:01,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:58:01,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:58:01,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:58:01,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:58:01,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:58:01,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:58:01,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:58:01,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:58:01,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:58:01,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:58:01,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:58:01,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:58:01,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:58:01,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:58:01,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:58:01,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:58:01,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:58:01,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:58:01,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:58:01,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:58:01,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:58:01,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:58:01,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:58:01,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:58:01,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:58:01,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:58:01,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:58:01,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:58:01,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:58:01,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:58:01,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:58:01,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:58:01,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:58:01,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:58:01,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:58:01,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-13 00:58:01,969 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:58:01,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:58:01,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:58:01,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:58:01,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:58:01,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:58:01,972 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:58:01,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:58:01,973 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:58:01,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:58:01,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:58:01,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:58:01,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:58:01,974 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:58:01,974 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:58:01,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:58:01,975 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:58:01,975 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:58:01,975 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:58:01,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:58:01,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:58:01,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:58:01,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:58:01,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:58:01,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:58:01,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:58:01,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:58:01,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:58:01,978 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_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95135695b4ab9cb9c416390540cae35b9fbb32e4 [2021-10-13 00:58:02,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:58:02,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:58:02,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:58:02,369 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:58:02,370 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:58:02,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/forester-heap/sll-token-1.i [2021-10-13 00:58:02,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/data/04b4af4a1/d6830dc3111745b08b52fe7c78a6804a/FLAG65b9bda2c [2021-10-13 00:58:03,205 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:58:03,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i [2021-10-13 00:58:03,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/data/04b4af4a1/d6830dc3111745b08b52fe7c78a6804a/FLAG65b9bda2c [2021-10-13 00:58:03,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/data/04b4af4a1/d6830dc3111745b08b52fe7c78a6804a [2021-10-13 00:58:03,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:58:03,437 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:58:03,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:03,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:58:03,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:58:03,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:03" (1/1) ... [2021-10-13 00:58:03,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286df2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:03, skipping insertion in model container [2021-10-13 00:58:03,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:03" (1/1) ... [2021-10-13 00:58:03,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:58:03,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:58:03,842 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2021-10-13 00:58:03,859 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2021-10-13 00:58:03,863 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2021-10-13 00:58:03,866 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2021-10-13 00:58:03,868 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2021-10-13 00:58:03,874 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2021-10-13 00:58:03,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:03,900 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:58:03,971 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2021-10-13 00:58:03,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2021-10-13 00:58:03,985 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2021-10-13 00:58:03,987 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2021-10-13 00:58:03,989 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2021-10-13 00:58:03,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2021-10-13 00:58:03,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:04,031 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:58:04,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04 WrapperNode [2021-10-13 00:58:04,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:04,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:58:04,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:58:04,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:58:04,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:58:04,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:58:04,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:58:04,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:58:04,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (1/1) ... [2021-10-13 00:58:04,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:58:04,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:58:04,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:58:04,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:58:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:58:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:58:04,229 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-13 00:58:04,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:58:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:58:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:58:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:58:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:58:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:58:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:58:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:58:04,231 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:58:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:58:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:58:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:58:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:58:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:58:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:58:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:58:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:58:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:58:04,234 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:58:04,234 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:58:04,234 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:58:04,234 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:58:04,234 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:58:04,235 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:58:04,235 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:58:04,235 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:58:04,235 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:58:04,235 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:58:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:58:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:58:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:58:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:58:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:58:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:58:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:58:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:58:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:58:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:58:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:58:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:58:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:58:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:58:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:58:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:58:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:58:04,239 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:58:04,240 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:58:04,240 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:58:04,240 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:58:04,240 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:58:04,240 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:58:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:58:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:58:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:58:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:58:04,241 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-13 00:58:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:58:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:58:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:58:04,242 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:58:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:58:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:58:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:58:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:58:04,243 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:58:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:58:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:58:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:58:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:58:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:58:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:58:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:58:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:58:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:58:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:58:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:58:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:58:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:58:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:58:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:58:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:58:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:58:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:58:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:58:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:58:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:58:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:58:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:58:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:58:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:58:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:58:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:58:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:58:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:58:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:58:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:58:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:58:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:58:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:58:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:58:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:58:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:58:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:58:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:58:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:58:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-13 00:58:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-13 00:58:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-13 00:58:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-13 00:58:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:58:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:58:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:58:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:58:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:58:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:58:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:58:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:58:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:58:04,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:58:04,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:58:04,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:58:04,895 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-13 00:58:04,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:04 BoogieIcfgContainer [2021-10-13 00:58:04,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:58:04,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:58:04,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:58:04,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:58:04,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:58:03" (1/3) ... [2021-10-13 00:58:04,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6f0f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:04, skipping insertion in model container [2021-10-13 00:58:04,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:04" (2/3) ... [2021-10-13 00:58:04,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6f0f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:58:04, skipping insertion in model container [2021-10-13 00:58:04,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:04" (3/3) ... [2021-10-13 00:58:04,924 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-token-1.i [2021-10-13 00:58:04,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:58:04,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-10-13 00:58:04,990 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:58:04,996 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:58:04,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-10-13 00:58:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 65 states have (on average 2.2) internal successors, (143), 119 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:58:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:58:05,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:05,030 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:05,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:05,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:05,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1985602549, now seen corresponding path program 1 times [2021-10-13 00:58:05,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:05,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033918952] [2021-10-13 00:58:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:05,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:05,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:05,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033918952] [2021-10-13 00:58:05,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033918952] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:05,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:05,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:05,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684453518] [2021-10-13 00:58:05,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:58:05,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:05,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:58:05,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:58:05,496 INFO L87 Difference]: Start difference. First operand has 124 states, 65 states have (on average 2.2) internal successors, (143), 119 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:05,884 INFO L93 Difference]: Finished difference Result 142 states and 145 transitions. [2021-10-13 00:58:05,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:58:05,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-13 00:58:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:05,903 INFO L225 Difference]: With dead ends: 142 [2021-10-13 00:58:05,903 INFO L226 Difference]: Without dead ends: 139 [2021-10-13 00:58:05,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.9ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:58:05,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-13 00:58:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2021-10-13 00:58:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 64 states have (on average 1.84375) internal successors, (118), 115 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2021-10-13 00:58:05,986 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 7 [2021-10-13 00:58:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:05,986 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2021-10-13 00:58:05,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:05,987 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2021-10-13 00:58:05,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:58:05,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:05,988 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:05,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:58:05,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:05,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:05,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1985602550, now seen corresponding path program 1 times [2021-10-13 00:58:05,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:05,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160762245] [2021-10-13 00:58:05,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:05,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:06,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:06,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160762245] [2021-10-13 00:58:06,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160762245] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:06,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:06,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:06,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324369968] [2021-10-13 00:58:06,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:58:06,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:06,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:58:06,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:58:06,155 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:06,459 INFO L93 Difference]: Finished difference Result 145 states and 147 transitions. [2021-10-13 00:58:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:58:06,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-13 00:58:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:06,466 INFO L225 Difference]: With dead ends: 145 [2021-10-13 00:58:06,467 INFO L226 Difference]: Without dead ends: 145 [2021-10-13 00:58:06,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:58:06,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-13 00:58:06,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 117. [2021-10-13 00:58:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 64 states have (on average 1.8125) internal successors, (116), 113 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2021-10-13 00:58:06,491 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 7 [2021-10-13 00:58:06,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:06,491 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2021-10-13 00:58:06,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:06,492 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2021-10-13 00:58:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:58:06,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:06,493 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:06,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:58:06,494 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr11REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:06,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:06,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1770439166, now seen corresponding path program 1 times [2021-10-13 00:58:06,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:06,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441227319] [2021-10-13 00:58:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:06,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:06,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:06,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441227319] [2021-10-13 00:58:06,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441227319] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:06,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:06,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:58:06,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445043676] [2021-10-13 00:58:06,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:58:06,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:06,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:58:06,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:58:06,674 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:06,991 INFO L93 Difference]: Finished difference Result 123 states and 126 transitions. [2021-10-13 00:58:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:58:06,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-10-13 00:58:06,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:06,994 INFO L225 Difference]: With dead ends: 123 [2021-10-13 00:58:06,994 INFO L226 Difference]: Without dead ends: 123 [2021-10-13 00:58:06,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:58:06,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-13 00:58:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2021-10-13 00:58:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.621212121212121) internal successors, (107), 102 states have internal predecessors, (107), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2021-10-13 00:58:07,004 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 12 [2021-10-13 00:58:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:07,004 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2021-10-13 00:58:07,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2021-10-13 00:58:07,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:58:07,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:07,006 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:07,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:58:07,006 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr12REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:07,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1770439165, now seen corresponding path program 1 times [2021-10-13 00:58:07,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:07,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948610675] [2021-10-13 00:58:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:07,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:07,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:07,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948610675] [2021-10-13 00:58:07,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948610675] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:07,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:07,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:58:07,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213450300] [2021-10-13 00:58:07,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:58:07,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:07,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:58:07,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:58:07,157 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:07,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:07,524 INFO L93 Difference]: Finished difference Result 188 states and 192 transitions. [2021-10-13 00:58:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:58:07,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-10-13 00:58:07,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:07,527 INFO L225 Difference]: With dead ends: 188 [2021-10-13 00:58:07,527 INFO L226 Difference]: Without dead ends: 188 [2021-10-13 00:58:07,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:58:07,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-13 00:58:07,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 137. [2021-10-13 00:58:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.4948453608247423) internal successors, (145), 133 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:07,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 148 transitions. [2021-10-13 00:58:07,543 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 148 transitions. Word has length 12 [2021-10-13 00:58:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:07,544 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 148 transitions. [2021-10-13 00:58:07,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:07,544 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 148 transitions. [2021-10-13 00:58:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:58:07,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:07,546 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:07,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:58:07,546 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr8REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:07,547 INFO L82 PathProgramCache]: Analyzing trace with hash 493695586, now seen corresponding path program 1 times [2021-10-13 00:58:07,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:07,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988876453] [2021-10-13 00:58:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:07,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:07,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:07,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988876453] [2021-10-13 00:58:07,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988876453] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:07,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:07,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:58:07,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741260484] [2021-10-13 00:58:07,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:58:07,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:07,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:58:07,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:58:07,735 INFO L87 Difference]: Start difference. First operand 137 states and 148 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:08,068 INFO L93 Difference]: Finished difference Result 136 states and 147 transitions. [2021-10-13 00:58:08,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:58:08,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-10-13 00:58:08,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:08,070 INFO L225 Difference]: With dead ends: 136 [2021-10-13 00:58:08,070 INFO L226 Difference]: Without dead ends: 136 [2021-10-13 00:58:08,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 103.6ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:58:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-13 00:58:08,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-10-13 00:58:08,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 132 states have internal predecessors, (144), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2021-10-13 00:58:08,088 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 16 [2021-10-13 00:58:08,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:08,089 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2021-10-13 00:58:08,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2021-10-13 00:58:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:58:08,090 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:08,090 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:08,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:58:08,091 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr9REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:08,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:08,091 INFO L82 PathProgramCache]: Analyzing trace with hash 493695587, now seen corresponding path program 1 times [2021-10-13 00:58:08,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:08,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102595894] [2021-10-13 00:58:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:08,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:08,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:08,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102595894] [2021-10-13 00:58:08,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102595894] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:08,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:08,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:58:08,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357428112] [2021-10-13 00:58:08,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:58:08,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:08,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:58:08,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:58:08,262 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:08,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:08,691 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2021-10-13 00:58:08,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:58:08,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-10-13 00:58:08,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:08,696 INFO L225 Difference]: With dead ends: 135 [2021-10-13 00:58:08,697 INFO L226 Difference]: Without dead ends: 135 [2021-10-13 00:58:08,697 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:58:08,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-13 00:58:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 120. [2021-10-13 00:58:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 87 states have (on average 1.4597701149425288) internal successors, (127), 116 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2021-10-13 00:58:08,702 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 16 [2021-10-13 00:58:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:08,702 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2021-10-13 00:58:08,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2021-10-13 00:58:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:58:08,703 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:08,703 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:08,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:58:08,704 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr17REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:08,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1591324516, now seen corresponding path program 1 times [2021-10-13 00:58:08,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:08,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666448307] [2021-10-13 00:58:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:08,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:08,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:08,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666448307] [2021-10-13 00:58:08,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666448307] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:08,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:08,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:58:08,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770937242] [2021-10-13 00:58:08,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:58:08,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:08,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:58:08,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:58:08,792 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:09,002 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2021-10-13 00:58:09,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:58:09,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-13 00:58:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:09,005 INFO L225 Difference]: With dead ends: 119 [2021-10-13 00:58:09,005 INFO L226 Difference]: Without dead ends: 119 [2021-10-13 00:58:09,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 41.4ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:58:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-13 00:58:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-13 00:58:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 115 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2021-10-13 00:58:09,014 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 17 [2021-10-13 00:58:09,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:09,014 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2021-10-13 00:58:09,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2021-10-13 00:58:09,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:58:09,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:09,017 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:09,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:58:09,017 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr18REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:09,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:09,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1591324517, now seen corresponding path program 1 times [2021-10-13 00:58:09,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:09,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289277399] [2021-10-13 00:58:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:09,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:09,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:09,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:09,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289277399] [2021-10-13 00:58:09,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289277399] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:09,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:09,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:58:09,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376149302] [2021-10-13 00:58:09,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:58:09,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:09,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:58:09,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:58:09,166 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:09,401 INFO L93 Difference]: Finished difference Result 118 states and 128 transitions. [2021-10-13 00:58:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:58:09,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-13 00:58:09,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:09,404 INFO L225 Difference]: With dead ends: 118 [2021-10-13 00:58:09,404 INFO L226 Difference]: Without dead ends: 118 [2021-10-13 00:58:09,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 62.3ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:58:09,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-13 00:58:09,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-13 00:58:09,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.4367816091954022) internal successors, (125), 114 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2021-10-13 00:58:09,407 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 17 [2021-10-13 00:58:09,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:09,408 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2021-10-13 00:58:09,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2021-10-13 00:58:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 00:58:09,408 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:09,409 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:09,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:58:09,409 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr10ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:09,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:09,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1995056002, now seen corresponding path program 1 times [2021-10-13 00:58:09,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:09,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975179133] [2021-10-13 00:58:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:09,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:09,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:09,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975179133] [2021-10-13 00:58:09,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975179133] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:09,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:09,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:58:09,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604107048] [2021-10-13 00:58:09,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:58:09,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:09,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:58:09,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:58:09,531 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:09,841 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2021-10-13 00:58:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:58:09,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-10-13 00:58:09,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:09,845 INFO L225 Difference]: With dead ends: 129 [2021-10-13 00:58:09,845 INFO L226 Difference]: Without dead ends: 129 [2021-10-13 00:58:09,845 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:58:09,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-13 00:58:09,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 116. [2021-10-13 00:58:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 86 states have (on average 1.430232558139535) internal successors, (123), 112 states have internal predecessors, (123), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2021-10-13 00:58:09,851 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 18 [2021-10-13 00:58:09,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:09,851 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2021-10-13 00:58:09,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:09,852 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2021-10-13 00:58:09,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 00:58:09,853 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:09,853 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:09,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:58:09,854 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr19ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:09,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:09,854 INFO L82 PathProgramCache]: Analyzing trace with hash -700314201, now seen corresponding path program 1 times [2021-10-13 00:58:09,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:09,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532912607] [2021-10-13 00:58:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:09,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:09,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:58:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:58:09,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:09,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532912607] [2021-10-13 00:58:09,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532912607] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:09,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:09,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:58:09,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728235491] [2021-10-13 00:58:09,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:58:09,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:09,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:58:09,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:58:09,925 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:10,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:10,137 INFO L93 Difference]: Finished difference Result 172 states and 177 transitions. [2021-10-13 00:58:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:58:10,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-10-13 00:58:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:58:10,139 INFO L225 Difference]: With dead ends: 172 [2021-10-13 00:58:10,139 INFO L226 Difference]: Without dead ends: 172 [2021-10-13 00:58:10,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.9ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:58:10,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-13 00:58:10,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 114. [2021-10-13 00:58:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 85 states have (on average 1.423529411764706) internal successors, (121), 110 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2021-10-13 00:58:10,148 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 20 [2021-10-13 00:58:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:58:10,149 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2021-10-13 00:58:10,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:58:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2021-10-13 00:58:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:58:10,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:58:10,154 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:10,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:58:10,154 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr29ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-13 00:58:10,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:10,155 INFO L82 PathProgramCache]: Analyzing trace with hash -202609001, now seen corresponding path program 1 times [2021-10-13 00:58:10,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:10,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417085669] [2021-10-13 00:58:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:10,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:10,217 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:10,307 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:10,308 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:58:10,309 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:58:10,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-13 00:58:10,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-13 00:58:10,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-13 00:58:10,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-13 00:58:10,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-13 00:58:10,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-13 00:58:10,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-13 00:58:10,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-13 00:58:10,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-13 00:58:10,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-13 00:58:10,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:58:10,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-10-13 00:58:10,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr12REQUIRES_VIOLATION [2021-10-13 00:58:10,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-10-13 00:58:10,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-10-13 00:58:10,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-10-13 00:58:10,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16REQUIRES_VIOLATION [2021-10-13 00:58:10,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr17REQUIRES_VIOLATION [2021-10-13 00:58:10,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr18REQUIRES_VIOLATION [2021-10-13 00:58:10,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:58:10,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr20REQUIRES_VIOLATION [2021-10-13 00:58:10,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr21REQUIRES_VIOLATION [2021-10-13 00:58:10,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr22REQUIRES_VIOLATION [2021-10-13 00:58:10,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr23REQUIRES_VIOLATION [2021-10-13 00:58:10,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:58:10,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr25REQUIRES_VIOLATION [2021-10-13 00:58:10,320 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr26REQUIRES_VIOLATION [2021-10-13 00:58:10,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr27REQUIRES_VIOLATION [2021-10-13 00:58:10,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr28REQUIRES_VIOLATION [2021-10-13 00:58:10,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr30REQUIRES_VIOLATION [2021-10-13 00:58:10,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr31REQUIRES_VIOLATION [2021-10-13 00:58:10,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr32REQUIRES_VIOLATION [2021-10-13 00:58:10,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr33REQUIRES_VIOLATION [2021-10-13 00:58:10,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:58:10,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr35REQUIRES_VIOLATION [2021-10-13 00:58:10,322 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr36REQUIRES_VIOLATION [2021-10-13 00:58:10,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr37REQUIRES_VIOLATION [2021-10-13 00:58:10,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr38REQUIRES_VIOLATION [2021-10-13 00:58:10,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr39ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,323 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr40ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr41ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr42REQUIRES_VIOLATION [2021-10-13 00:58:10,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr43REQUIRES_VIOLATION [2021-10-13 00:58:10,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 00:58:10,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr45REQUIRES_VIOLATION [2021-10-13 00:58:10,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr46REQUIRES_VIOLATION [2021-10-13 00:58:10,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr47ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr48ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr49ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr50ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr51ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr52ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 00:58:10,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr53ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:58:10,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:58:10,335 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:58:10,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:58:10 BoogieIcfgContainer [2021-10-13 00:58:10,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:58:10,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:58:10,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:58:10,368 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:58:10,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:04" (3/4) ... [2021-10-13 00:58:10,371 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 00:58:10,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:58:10,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:58:10,433 INFO L168 Benchmark]: Toolchain (without parser) took 6994.08 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 73.4 MB in the beginning and 104.3 MB in the end (delta: -30.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:58:10,433 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 113.2 MB. Free memory was 91.8 MB in the beginning and 91.7 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:58:10,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.96 ms. Allocated memory is still 113.2 MB. Free memory was 73.2 MB in the beginning and 78.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:58:10,435 INFO L168 Benchmark]: Boogie Preprocessor took 98.56 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 75.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:58:10,435 INFO L168 Benchmark]: RCFGBuilder took 773.32 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 51.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:58:10,436 INFO L168 Benchmark]: TraceAbstraction took 5458.74 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 50.7 MB in the beginning and 106.4 MB in the end (delta: -55.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:58:10,437 INFO L168 Benchmark]: Witness Printer took 63.42 ms. Allocated memory is still 144.7 MB. Free memory was 106.4 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:58:10,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 113.2 MB. Free memory was 91.8 MB in the beginning and 91.7 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 592.96 ms. Allocated memory is still 113.2 MB. Free memory was 73.2 MB in the beginning and 78.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.56 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 75.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 773.32 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 51.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5458.74 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 50.7 MB in the beginning and 106.4 MB in the end (delta: -55.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 63.42 ms. Allocated memory is still 144.7 MB. Free memory was 106.4 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1031]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) VAL [head={-1:0}] [L1005] head->data = 0 VAL [head={-1:0}] [L1007] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 VAL [head={-1:0}, x={-1:0}] [L1019] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1020] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1020] x->next->data = 2 VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1022] x = head VAL [head={-1:0}, x={-1:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1026] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1031] COND TRUE !(2 == x->data) [L1031] reach_error() VAL [head={-1:0}, x={-1:0}] - UnprovableResult [Line: 1004]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1004]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1014]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1014]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1015]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1015]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1018]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1018]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1019]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1019]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1026]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1026]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1040]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1040]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1043]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1043]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1043]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1000]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 127 locations, 54 error locations. Started 1 CEGAR loops. OverallTime: 5344.5ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 29.1ms, AutomataDifference: 3202.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 772 SDtfs, 822 SDslu, 1248 SDs, 0 SdLazy, 2292 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2084.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 647.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=4, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 153.4ms AutomataMinimizationTime, 10 MinimizatonAttempts, 202 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 51.0ms SsaConstructionTime, 279.1ms SatisfiabilityAnalysisTime, 1133.8ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:58:10,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f30bf18f-7029-4849-a5f1-ded3a133daa0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...