./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/unreach-call.prp --file /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678b828e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c1ca7887fba9dc7f24429e89867d851418913d68 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-678b828 [2020-12-07 15:48:06,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-07 15:48:06,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-07 15:48:06,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-07 15:48:06,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-07 15:48:06,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-07 15:48:06,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-07 15:48:06,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-07 15:48:06,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-07 15:48:06,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-07 15:48:06,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-07 15:48:06,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-07 15:48:06,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-07 15:48:06,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-07 15:48:06,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-07 15:48:06,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-07 15:48:06,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-07 15:48:06,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-07 15:48:06,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-07 15:48:06,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-07 15:48:06,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-07 15:48:06,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-07 15:48:06,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-07 15:48:06,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-07 15:48:07,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-07 15:48:07,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-07 15:48:07,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-07 15:48:07,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-07 15:48:07,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-07 15:48:07,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-07 15:48:07,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-07 15:48:07,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-07 15:48:07,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-07 15:48:07,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-07 15:48:07,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-07 15:48:07,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-07 15:48:07,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-07 15:48:07,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-07 15:48:07,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-07 15:48:07,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-07 15:48:07,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-07 15:48:07,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-07 15:48:07,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-07 15:48:07,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-07 15:48:07,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-07 15:48:07,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-07 15:48:07,078 INFO L138 SettingsManager]: * Use SBE=true [2020-12-07 15:48:07,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-07 15:48:07,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-07 15:48:07,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-07 15:48:07,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-07 15:48:07,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-07 15:48:07,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-07 15:48:07,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-07 15:48:07,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-07 15:48:07,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-07 15:48:07,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-07 15:48:07,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-07 15:48:07,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-07 15:48:07,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 15:48:07,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-07 15:48:07,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-07 15:48:07,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-07 15:48:07,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-07 15:48:07,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-07 15:48:07,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-07 15:48:07,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-07 15:48:07,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1ca7887fba9dc7f24429e89867d851418913d68 [2020-12-07 15:48:07,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-07 15:48:07,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-07 15:48:07,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-07 15:48:07,636 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-07 15:48:07,637 INFO L275 PluginConnector]: CDTParser initialized [2020-12-07 15:48:07,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i [2020-12-07 15:48:07,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10decee03/6616adb74efe4842a6ebd6ccafde4d2c/FLAG50b611293 [2020-12-07 15:48:09,006 INFO L306 CDTParser]: Found 1 translation units. [2020-12-07 15:48:09,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i [2020-12-07 15:48:09,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10decee03/6616adb74efe4842a6ebd6ccafde4d2c/FLAG50b611293 [2020-12-07 15:48:09,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10decee03/6616adb74efe4842a6ebd6ccafde4d2c [2020-12-07 15:48:09,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-07 15:48:09,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-07 15:48:09,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-07 15:48:09,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-07 15:48:09,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-07 15:48:09,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:09" (1/1) ... [2020-12-07 15:48:09,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5a03bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:09, skipping insertion in model container [2020-12-07 15:48:09,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:09" (1/1) ... [2020-12-07 15:48:09,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-07 15:48:09,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-07 15:48:09,730 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i[4506,4519] [2020-12-07 15:48:09,739 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i[4566,4579] [2020-12-07 15:48:09,774 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 15:48:09,783 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 15:48:11,138 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,139 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,140 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,142 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,146 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,182 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,184 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,189 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,193 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,195 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,197 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,198 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,199 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:11,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 15:48:11,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 15:48:11,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 15:48:11,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 15:48:11,715 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 15:48:11,716 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 15:48:11,717 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 15:48:11,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 15:48:11,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 15:48:11,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 15:48:11,947 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 15:48:11,977 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,014 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,144 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,146 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 15:48:12,466 INFO L203 MainTranslator]: Completed pre-run [2020-12-07 15:48:12,505 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i[4506,4519] [2020-12-07 15:48:12,506 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_comparator_string_harness.i[4566,4579] [2020-12-07 15:48:12,509 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 15:48:12,510 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 15:48:12,578 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,579 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,583 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,584 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,585 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,592 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,593 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,595 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,596 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,597 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,598 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,599 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,599 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 15:48:12,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 15:48:12,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 15:48:12,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 15:48:12,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 15:48:12,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 15:48:12,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 15:48:12,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 15:48:12,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 15:48:12,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 15:48:12,729 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 15:48:12,742 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,748 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,862 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,863 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 15:48:12,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 15:48:14,205 INFO L208 MainTranslator]: Completed translation [2020-12-07 15:48:14,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14 WrapperNode [2020-12-07 15:48:14,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-07 15:48:14,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-07 15:48:14,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-07 15:48:14,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-07 15:48:14,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-07 15:48:14,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-07 15:48:14,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-07 15:48:14,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-07 15:48:14,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... [2020-12-07 15:48:14,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-07 15:48:14,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-07 15:48:14,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-07 15:48:14,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-07 15:48:14,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 15:48:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-07 15:48:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-07 15:48:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-07 15:48:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-07 15:48:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-07 15:48:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-07 15:48:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-07 15:48:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-07 15:48:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-07 15:48:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-07 15:48:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-07 15:48:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-07 15:48:14,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-07 15:48:25,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-07 15:48:25,452 INFO L299 CfgBuilder]: Removed 86 assume(true) statements. [2020-12-07 15:48:25,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:25 BoogieIcfgContainer [2020-12-07 15:48:25,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-07 15:48:25,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-07 15:48:25,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-07 15:48:25,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-07 15:48:25,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:48:09" (1/3) ... [2020-12-07 15:48:25,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c038c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:48:25, skipping insertion in model container [2020-12-07 15:48:25,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:14" (2/3) ... [2020-12-07 15:48:25,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c038c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:48:25, skipping insertion in model container [2020-12-07 15:48:25,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:25" (3/3) ... [2020-12-07 15:48:25,467 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_comparator_string_harness.i [2020-12-07 15:48:25,483 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-07 15:48:25,491 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-07 15:48:25,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-07 15:48:25,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-07 15:48:25,559 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-07 15:48:25,559 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-07 15:48:25,560 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-07 15:48:25,560 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-07 15:48:25,560 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-07 15:48:25,560 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-07 15:48:25,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-07 15:48:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-12-07 15:48:25,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-07 15:48:25,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:25,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:25,592 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:25,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1456766514, now seen corresponding path program 1 times [2020-12-07 15:48:25,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:25,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657206727] [2020-12-07 15:48:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:26,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657206727] [2020-12-07 15:48:26,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:26,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-07 15:48:26,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760603777] [2020-12-07 15:48:26,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-07 15:48:26,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:26,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-07 15:48:26,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 15:48:26,576 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2020-12-07 15:48:26,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:26,614 INFO L93 Difference]: Finished difference Result 232 states and 319 transitions. [2020-12-07 15:48:26,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-07 15:48:26,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2020-12-07 15:48:26,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:26,629 INFO L225 Difference]: With dead ends: 232 [2020-12-07 15:48:26,630 INFO L226 Difference]: Without dead ends: 111 [2020-12-07 15:48:26,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 15:48:26,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-07 15:48:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-12-07 15:48:26,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-07 15:48:26,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 139 transitions. [2020-12-07 15:48:26,684 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 139 transitions. Word has length 27 [2020-12-07 15:48:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:26,685 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 139 transitions. [2020-12-07 15:48:26,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-07 15:48:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 139 transitions. [2020-12-07 15:48:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-07 15:48:26,687 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:26,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:26,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-07 15:48:26,688 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:26,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:26,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1322753008, now seen corresponding path program 1 times [2020-12-07 15:48:26,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:26,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964792746] [2020-12-07 15:48:26,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:27,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964792746] [2020-12-07 15:48:27,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:27,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-07 15:48:27,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017868175] [2020-12-07 15:48:27,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-07 15:48:27,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:27,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-07 15:48:27,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-07 15:48:27,642 INFO L87 Difference]: Start difference. First operand 111 states and 139 transitions. Second operand 10 states. [2020-12-07 15:48:30,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:30,507 INFO L93 Difference]: Finished difference Result 194 states and 247 transitions. [2020-12-07 15:48:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-07 15:48:30,508 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-12-07 15:48:30,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:30,513 INFO L225 Difference]: With dead ends: 194 [2020-12-07 15:48:30,516 INFO L226 Difference]: Without dead ends: 192 [2020-12-07 15:48:30,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-12-07 15:48:30,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-12-07 15:48:30,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 181. [2020-12-07 15:48:30,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-12-07 15:48:30,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 237 transitions. [2020-12-07 15:48:30,568 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 237 transitions. Word has length 27 [2020-12-07 15:48:30,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:30,568 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 237 transitions. [2020-12-07 15:48:30,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-07 15:48:30,569 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 237 transitions. [2020-12-07 15:48:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-07 15:48:30,571 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:30,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:30,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-07 15:48:30,572 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:30,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:30,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1786794969, now seen corresponding path program 1 times [2020-12-07 15:48:30,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:30,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666000057] [2020-12-07 15:48:30,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:31,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:31,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666000057] [2020-12-07 15:48:31,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:31,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-07 15:48:31,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684162640] [2020-12-07 15:48:31,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-07 15:48:31,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:31,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-07 15:48:31,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-07 15:48:31,450 INFO L87 Difference]: Start difference. First operand 181 states and 237 transitions. Second operand 7 states. [2020-12-07 15:48:33,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:33,956 INFO L93 Difference]: Finished difference Result 473 states and 629 transitions. [2020-12-07 15:48:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-07 15:48:33,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-12-07 15:48:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:33,963 INFO L225 Difference]: With dead ends: 473 [2020-12-07 15:48:33,964 INFO L226 Difference]: Without dead ends: 456 [2020-12-07 15:48:33,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-12-07 15:48:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-12-07 15:48:34,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 187. [2020-12-07 15:48:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-07 15:48:34,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 245 transitions. [2020-12-07 15:48:34,011 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 245 transitions. Word has length 32 [2020-12-07 15:48:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:34,012 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 245 transitions. [2020-12-07 15:48:34,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-07 15:48:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 245 transitions. [2020-12-07 15:48:34,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-07 15:48:34,016 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:34,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:34,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-07 15:48:34,017 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:34,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:34,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1199988955, now seen corresponding path program 1 times [2020-12-07 15:48:34,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:34,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388281519] [2020-12-07 15:48:34,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:34,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388281519] [2020-12-07 15:48:34,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:34,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-07 15:48:34,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136108429] [2020-12-07 15:48:34,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 15:48:34,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:34,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 15:48:34,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-07 15:48:34,435 INFO L87 Difference]: Start difference. First operand 187 states and 245 transitions. Second operand 6 states. [2020-12-07 15:48:34,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:34,673 INFO L93 Difference]: Finished difference Result 473 states and 627 transitions. [2020-12-07 15:48:34,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-07 15:48:34,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-12-07 15:48:34,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:34,678 INFO L225 Difference]: With dead ends: 473 [2020-12-07 15:48:34,678 INFO L226 Difference]: Without dead ends: 456 [2020-12-07 15:48:34,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-12-07 15:48:34,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-12-07 15:48:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 187. [2020-12-07 15:48:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-07 15:48:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 245 transitions. [2020-12-07 15:48:34,694 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 245 transitions. Word has length 32 [2020-12-07 15:48:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:34,695 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 245 transitions. [2020-12-07 15:48:34,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 15:48:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 245 transitions. [2020-12-07 15:48:34,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-07 15:48:34,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:34,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:34,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-07 15:48:34,697 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:34,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:34,698 INFO L82 PathProgramCache]: Analyzing trace with hash 775677719, now seen corresponding path program 1 times [2020-12-07 15:48:34,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:34,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486138321] [2020-12-07 15:48:34,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:35,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486138321] [2020-12-07 15:48:35,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:35,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-07 15:48:35,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029373920] [2020-12-07 15:48:35,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 15:48:35,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:35,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 15:48:35,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-07 15:48:35,006 INFO L87 Difference]: Start difference. First operand 187 states and 245 transitions. Second operand 6 states. [2020-12-07 15:48:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:35,304 INFO L93 Difference]: Finished difference Result 473 states and 627 transitions. [2020-12-07 15:48:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-07 15:48:35,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-12-07 15:48:35,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:35,308 INFO L225 Difference]: With dead ends: 473 [2020-12-07 15:48:35,309 INFO L226 Difference]: Without dead ends: 456 [2020-12-07 15:48:35,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-12-07 15:48:35,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-12-07 15:48:35,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 187. [2020-12-07 15:48:35,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-07 15:48:35,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 245 transitions. [2020-12-07 15:48:35,328 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 245 transitions. Word has length 32 [2020-12-07 15:48:35,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:35,329 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 245 transitions. [2020-12-07 15:48:35,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 15:48:35,329 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 245 transitions. [2020-12-07 15:48:35,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-07 15:48:35,330 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:35,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:35,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-07 15:48:35,331 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:35,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:35,332 INFO L82 PathProgramCache]: Analyzing trace with hash 188871705, now seen corresponding path program 1 times [2020-12-07 15:48:35,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:35,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928381205] [2020-12-07 15:48:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:35,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928381205] [2020-12-07 15:48:35,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:35,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-07 15:48:35,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437576388] [2020-12-07 15:48:35,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-07 15:48:35,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:35,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-07 15:48:35,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-07 15:48:35,633 INFO L87 Difference]: Start difference. First operand 187 states and 245 transitions. Second operand 3 states. [2020-12-07 15:48:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:35,672 INFO L93 Difference]: Finished difference Result 330 states and 435 transitions. [2020-12-07 15:48:35,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-07 15:48:35,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-07 15:48:35,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:35,678 INFO L225 Difference]: With dead ends: 330 [2020-12-07 15:48:35,678 INFO L226 Difference]: Without dead ends: 303 [2020-12-07 15:48:35,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-07 15:48:35,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-07 15:48:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 237. [2020-12-07 15:48:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-07 15:48:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 307 transitions. [2020-12-07 15:48:35,700 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 307 transitions. Word has length 32 [2020-12-07 15:48:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:35,701 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 307 transitions. [2020-12-07 15:48:35,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-07 15:48:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 307 transitions. [2020-12-07 15:48:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-07 15:48:35,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:35,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:35,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-07 15:48:35,706 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:35,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1291824087, now seen corresponding path program 1 times [2020-12-07 15:48:35,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:35,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798511694] [2020-12-07 15:48:35,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:36,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798511694] [2020-12-07 15:48:36,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:36,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-07 15:48:36,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249090859] [2020-12-07 15:48:36,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-07 15:48:36,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:36,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-07 15:48:36,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-07 15:48:36,023 INFO L87 Difference]: Start difference. First operand 237 states and 307 transitions. Second operand 5 states. [2020-12-07 15:48:36,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:36,191 INFO L93 Difference]: Finished difference Result 455 states and 589 transitions. [2020-12-07 15:48:36,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-07 15:48:36,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-07 15:48:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:36,196 INFO L225 Difference]: With dead ends: 455 [2020-12-07 15:48:36,196 INFO L226 Difference]: Without dead ends: 438 [2020-12-07 15:48:36,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-07 15:48:36,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-12-07 15:48:36,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 245. [2020-12-07 15:48:36,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-12-07 15:48:36,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 317 transitions. [2020-12-07 15:48:36,216 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 317 transitions. Word has length 33 [2020-12-07 15:48:36,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:36,216 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 317 transitions. [2020-12-07 15:48:36,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-07 15:48:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 317 transitions. [2020-12-07 15:48:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-07 15:48:36,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:36,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:36,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-07 15:48:36,219 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:36,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1723279531, now seen corresponding path program 1 times [2020-12-07 15:48:36,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:36,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804171033] [2020-12-07 15:48:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:36,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804171033] [2020-12-07 15:48:36,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:36,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 15:48:36,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94801702] [2020-12-07 15:48:36,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 15:48:36,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:36,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 15:48:36,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 15:48:36,493 INFO L87 Difference]: Start difference. First operand 245 states and 317 transitions. Second operand 4 states. [2020-12-07 15:48:36,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:36,553 INFO L93 Difference]: Finished difference Result 262 states and 333 transitions. [2020-12-07 15:48:36,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 15:48:36,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-12-07 15:48:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:36,556 INFO L225 Difference]: With dead ends: 262 [2020-12-07 15:48:36,556 INFO L226 Difference]: Without dead ends: 245 [2020-12-07 15:48:36,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-07 15:48:36,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-12-07 15:48:36,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 237. [2020-12-07 15:48:36,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-07 15:48:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 305 transitions. [2020-12-07 15:48:36,577 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 305 transitions. Word has length 33 [2020-12-07 15:48:36,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:36,579 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 305 transitions. [2020-12-07 15:48:36,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 15:48:36,580 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 305 transitions. [2020-12-07 15:48:36,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-07 15:48:36,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:36,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:36,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-07 15:48:36,583 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:36,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1660410782, now seen corresponding path program 1 times [2020-12-07 15:48:36,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:36,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229633980] [2020-12-07 15:48:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:36,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229633980] [2020-12-07 15:48:36,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:36,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-07 15:48:36,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131155391] [2020-12-07 15:48:36,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-07 15:48:36,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:36,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-07 15:48:36,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-07 15:48:36,885 INFO L87 Difference]: Start difference. First operand 237 states and 305 transitions. Second operand 5 states. [2020-12-07 15:48:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:37,018 INFO L93 Difference]: Finished difference Result 258 states and 323 transitions. [2020-12-07 15:48:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-07 15:48:37,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-12-07 15:48:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:37,022 INFO L225 Difference]: With dead ends: 258 [2020-12-07 15:48:37,022 INFO L226 Difference]: Without dead ends: 241 [2020-12-07 15:48:37,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-07 15:48:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-12-07 15:48:37,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 237. [2020-12-07 15:48:37,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-07 15:48:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 303 transitions. [2020-12-07 15:48:37,050 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 303 transitions. Word has length 34 [2020-12-07 15:48:37,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:37,050 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 303 transitions. [2020-12-07 15:48:37,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-07 15:48:37,050 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 303 transitions. [2020-12-07 15:48:37,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-07 15:48:37,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:37,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:37,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-07 15:48:37,052 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:37,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:37,054 INFO L82 PathProgramCache]: Analyzing trace with hash 559336148, now seen corresponding path program 1 times [2020-12-07 15:48:37,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:37,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394796915] [2020-12-07 15:48:37,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:37,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:37,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394796915] [2020-12-07 15:48:37,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:37,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-07 15:48:37,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842744813] [2020-12-07 15:48:37,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-07 15:48:37,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:37,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-07 15:48:37,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-12-07 15:48:37,760 INFO L87 Difference]: Start difference. First operand 237 states and 303 transitions. Second operand 13 states. [2020-12-07 15:48:42,783 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2020-12-07 15:48:43,003 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-12-07 15:48:43,330 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-07 15:48:43,739 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2020-12-07 15:48:43,894 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-12-07 15:48:44,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:44,184 INFO L93 Difference]: Finished difference Result 417 states and 523 transitions. [2020-12-07 15:48:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-07 15:48:44,185 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-12-07 15:48:44,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:44,187 INFO L225 Difference]: With dead ends: 417 [2020-12-07 15:48:44,188 INFO L226 Difference]: Without dead ends: 312 [2020-12-07 15:48:44,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=356, Invalid=904, Unknown=0, NotChecked=0, Total=1260 [2020-12-07 15:48:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-12-07 15:48:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 237. [2020-12-07 15:48:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-07 15:48:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 299 transitions. [2020-12-07 15:48:44,209 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 299 transitions. Word has length 44 [2020-12-07 15:48:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:44,209 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 299 transitions. [2020-12-07 15:48:44,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-07 15:48:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 299 transitions. [2020-12-07 15:48:44,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-07 15:48:44,210 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:44,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:44,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-07 15:48:44,211 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:44,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:44,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1389763316, now seen corresponding path program 1 times [2020-12-07 15:48:44,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:44,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920938697] [2020-12-07 15:48:44,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:44,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920938697] [2020-12-07 15:48:44,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:44,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-07 15:48:44,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905510129] [2020-12-07 15:48:44,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-07 15:48:44,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:44,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-07 15:48:44,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-07 15:48:44,704 INFO L87 Difference]: Start difference. First operand 237 states and 299 transitions. Second operand 10 states. [2020-12-07 15:48:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:47,871 INFO L93 Difference]: Finished difference Result 549 states and 687 transitions. [2020-12-07 15:48:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-07 15:48:47,873 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-12-07 15:48:47,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:47,878 INFO L225 Difference]: With dead ends: 549 [2020-12-07 15:48:47,879 INFO L226 Difference]: Without dead ends: 437 [2020-12-07 15:48:47,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2020-12-07 15:48:47,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-12-07 15:48:47,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 248. [2020-12-07 15:48:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-12-07 15:48:47,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 311 transitions. [2020-12-07 15:48:47,901 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 311 transitions. Word has length 49 [2020-12-07 15:48:47,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:47,902 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 311 transitions. [2020-12-07 15:48:47,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-07 15:48:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 311 transitions. [2020-12-07 15:48:47,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-07 15:48:47,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:47,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:47,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-07 15:48:47,904 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:47,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:47,904 INFO L82 PathProgramCache]: Analyzing trace with hash -688163442, now seen corresponding path program 1 times [2020-12-07 15:48:47,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:47,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424715719] [2020-12-07 15:48:47,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:48,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424715719] [2020-12-07 15:48:48,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:48,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-07 15:48:48,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215027822] [2020-12-07 15:48:48,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-07 15:48:48,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:48,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-07 15:48:48,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-07 15:48:48,190 INFO L87 Difference]: Start difference. First operand 248 states and 311 transitions. Second operand 4 states. [2020-12-07 15:48:48,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:48,276 INFO L93 Difference]: Finished difference Result 443 states and 561 transitions. [2020-12-07 15:48:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 15:48:48,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-12-07 15:48:48,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:48,279 INFO L225 Difference]: With dead ends: 443 [2020-12-07 15:48:48,280 INFO L226 Difference]: Without dead ends: 242 [2020-12-07 15:48:48,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-07 15:48:48,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-12-07 15:48:48,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-12-07 15:48:48,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-12-07 15:48:48,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 301 transitions. [2020-12-07 15:48:48,302 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 301 transitions. Word has length 49 [2020-12-07 15:48:48,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:48,303 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 301 transitions. [2020-12-07 15:48:48,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-07 15:48:48,303 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 301 transitions. [2020-12-07 15:48:48,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-07 15:48:48,305 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 15:48:48,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 15:48:48,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-07 15:48:48,306 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 15:48:48,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 15:48:48,306 INFO L82 PathProgramCache]: Analyzing trace with hash 314555526, now seen corresponding path program 1 times [2020-12-07 15:48:48,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 15:48:48,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402451829] [2020-12-07 15:48:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 15:48:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 15:48:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 15:48:49,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402451829] [2020-12-07 15:48:49,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 15:48:49,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-07 15:48:49,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297724101] [2020-12-07 15:48:49,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 15:48:49,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 15:48:49,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 15:48:49,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-07 15:48:49,549 INFO L87 Difference]: Start difference. First operand 242 states and 301 transitions. Second operand 6 states. [2020-12-07 15:48:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 15:48:49,710 INFO L93 Difference]: Finished difference Result 242 states and 301 transitions. [2020-12-07 15:48:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-07 15:48:49,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-12-07 15:48:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 15:48:49,711 INFO L225 Difference]: With dead ends: 242 [2020-12-07 15:48:49,711 INFO L226 Difference]: Without dead ends: 0 [2020-12-07 15:48:49,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-07 15:48:49,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-07 15:48:49,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-07 15:48:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-07 15:48:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-07 15:48:49,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-12-07 15:48:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 15:48:49,713 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-07 15:48:49,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 15:48:49,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-07 15:48:49,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-07 15:48:49,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-07 15:48:49,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-07 15:48:50,093 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2020-12-07 15:48:50,336 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 32 [2020-12-07 15:48:50,344 INFO L258 CegarLoopResult]: At program point L6939-1(lines 6938 6940) the Hoare annotation is: false [2020-12-07 15:48:50,344 INFO L258 CegarLoopResult]: At program point L6939(lines 6938 6940) the Hoare annotation is: false [2020-12-07 15:48:50,344 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,344 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-07 15:48:50,344 INFO L262 CegarLoopResult]: For program point L9847-2(lines 9847 9851) no Hoare annotation was computed. [2020-12-07 15:48:50,344 INFO L262 CegarLoopResult]: For program point L9847-3(lines 9847 9855) no Hoare annotation was computed. [2020-12-07 15:48:50,344 INFO L262 CegarLoopResult]: For program point L9847-4(lines 9847 9855) no Hoare annotation was computed. [2020-12-07 15:48:50,344 INFO L262 CegarLoopResult]: For program point L9847(lines 9847 9848) no Hoare annotation was computed. [2020-12-07 15:48:50,345 INFO L262 CegarLoopResult]: For program point L6859(lines 6859 6860) no Hoare annotation was computed. [2020-12-07 15:48:50,345 INFO L258 CegarLoopResult]: At program point L9551(lines 9518 9552) the Hoare annotation is: (and (= (* (div ULTIMATE.start_aws_array_list_comparator_string_harness_~nondet_parameter_b~0 256) 256) ULTIMATE.start_aws_array_list_comparator_string_harness_~nondet_parameter_b~0) (= (select |#valid| |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base|) 1) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base| 0)) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0)) (not (= |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base| |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_b~1.base|)) (not (= 0 |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_b~1.base|))) [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L6859-5(lines 6859 6860) no Hoare annotation was computed. [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L6859-3(lines 6859 6860) no Hoare annotation was computed. [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L6859-2(lines 6859 6860) no Hoare annotation was computed. [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L9849-1(lines 9849 9850) no Hoare annotation was computed. [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L9519-2(line 9519) no Hoare annotation was computed. [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L9519(line 9519) no Hoare annotation was computed. [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L9520(line 9520) no Hoare annotation was computed. [2020-12-07 15:48:50,346 INFO L262 CegarLoopResult]: For program point L9520-2(line 9520) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L258 CegarLoopResult]: At program point L9570(lines 9554 9571) the Hoare annotation is: (let ((.cse0 (= (select |#valid| |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base|) 1)) (.cse1 (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0))) (.cse2 (not (= |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base| 0))) (.cse3 (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0))) (.cse4 (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0))) (.cse5 (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) (.cse6 (not (= |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base| |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_b~1.base|))) (.cse7 (not (= 0 |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_b~1.base|)))) (or (and .cse0 .cse1 (<= (+ |ULTIMATE.start_aws_array_list_comparator_string_#res| 1) 0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= (* (div ULTIMATE.start_aws_array_list_comparator_string_harness_~nondet_parameter_b~0 256) 256) ULTIMATE.start_aws_array_list_comparator_string_harness_~nondet_parameter_b~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L9537(line 9537) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L222-2(lines 7150 7160) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L9537-2(line 9537) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L9521(lines 9521 9523) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-07 15:48:50,347 INFO L262 CegarLoopResult]: For program point L9852(lines 9852 9854) no Hoare annotation was computed. [2020-12-07 15:48:50,348 INFO L262 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,348 INFO L262 CegarLoopResult]: For program point L223-1(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,348 INFO L262 CegarLoopResult]: For program point L223-3(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,348 INFO L262 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,349 INFO L262 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,349 INFO L262 CegarLoopResult]: For program point L223-7(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,349 INFO L262 CegarLoopResult]: For program point L9555(lines 9555 9557) no Hoare annotation was computed. [2020-12-07 15:48:50,349 INFO L262 CegarLoopResult]: For program point L223-9(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,350 INFO L262 CegarLoopResult]: For program point L223-10(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,350 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,350 INFO L258 CegarLoopResult]: At program point L6864-1(lines 6855 6865) the Hoare annotation is: false [2020-12-07 15:48:50,350 INFO L258 CegarLoopResult]: At program point L6864(lines 6855 6865) the Hoare annotation is: false [2020-12-07 15:48:50,350 INFO L262 CegarLoopResult]: For program point L9524(lines 9524 9528) no Hoare annotation was computed. [2020-12-07 15:48:50,350 INFO L262 CegarLoopResult]: For program point L9838(lines 9838 9856) no Hoare annotation was computed. [2020-12-07 15:48:50,351 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-07 15:48:50,351 INFO L262 CegarLoopResult]: For program point L210(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,351 INFO L262 CegarLoopResult]: For program point L9558(lines 9558 9562) no Hoare annotation was computed. [2020-12-07 15:48:50,351 INFO L262 CegarLoopResult]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,351 INFO L262 CegarLoopResult]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,352 INFO L262 CegarLoopResult]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,352 INFO L262 CegarLoopResult]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,352 INFO L262 CegarLoopResult]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,352 INFO L262 CegarLoopResult]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,352 INFO L262 CegarLoopResult]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,353 INFO L262 CegarLoopResult]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2020-12-07 15:48:50,353 INFO L262 CegarLoopResult]: For program point L9542(lines 9542 9544) no Hoare annotation was computed. [2020-12-07 15:48:50,353 INFO L262 CegarLoopResult]: For program point L6305-2(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,353 INFO L262 CegarLoopResult]: For program point L6305-3(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,353 INFO L262 CegarLoopResult]: For program point L6305(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,354 INFO L258 CegarLoopResult]: At program point L6305-6(lines 6301 6306) the Hoare annotation is: false [2020-12-07 15:48:50,354 INFO L262 CegarLoopResult]: For program point L6305-7(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,354 INFO L262 CegarLoopResult]: For program point L6305-5(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,354 INFO L262 CegarLoopResult]: For program point L6305-10(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,354 INFO L262 CegarLoopResult]: For program point L6305-9(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,354 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,355 INFO L262 CegarLoopResult]: For program point L6305-14(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,355 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,355 INFO L262 CegarLoopResult]: For program point L6305-12(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,356 INFO L258 CegarLoopResult]: At program point L6305-13(lines 6301 6306) the Hoare annotation is: false [2020-12-07 15:48:50,356 INFO L262 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,356 INFO L262 CegarLoopResult]: For program point L6305-19(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,356 INFO L262 CegarLoopResult]: For program point L211-4(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,356 INFO L262 CegarLoopResult]: For program point L6305-16(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,357 INFO L262 CegarLoopResult]: For program point L6305-17(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,357 INFO L262 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,357 INFO L262 CegarLoopResult]: For program point L9840(line 9840) no Hoare annotation was computed. [2020-12-07 15:48:50,357 INFO L262 CegarLoopResult]: For program point L6305-23(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,358 INFO L262 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,358 INFO L258 CegarLoopResult]: At program point L6305-20(lines 6301 6306) the Hoare annotation is: false [2020-12-07 15:48:50,358 INFO L262 CegarLoopResult]: For program point L7148(lines 7148 7161) no Hoare annotation was computed. [2020-12-07 15:48:50,358 INFO L262 CegarLoopResult]: For program point L9840-2(line 9840) no Hoare annotation was computed. [2020-12-07 15:48:50,359 INFO L262 CegarLoopResult]: For program point L6305-21(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,359 INFO L262 CegarLoopResult]: For program point L211-10(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,359 INFO L262 CegarLoopResult]: For program point L6305-26(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,359 INFO L258 CegarLoopResult]: At program point L6305-27(lines 6301 6306) the Hoare annotation is: false [2020-12-07 15:48:50,359 INFO L262 CegarLoopResult]: For program point L211-12(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,360 INFO L262 CegarLoopResult]: For program point L6305-24(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,360 INFO L258 CegarLoopResult]: At program point L261(line 261) the Hoare annotation is: false [2020-12-07 15:48:50,360 INFO L262 CegarLoopResult]: For program point L211-14(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,360 INFO L262 CegarLoopResult]: For program point L6305-30(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,361 INFO L258 CegarLoopResult]: At program point L261-1(line 261) the Hoare annotation is: false [2020-12-07 15:48:50,361 INFO L262 CegarLoopResult]: For program point L6305-31(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,361 INFO L258 CegarLoopResult]: At program point L261-2(line 261) the Hoare annotation is: false [2020-12-07 15:48:50,361 INFO L262 CegarLoopResult]: For program point L6305-28(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,362 INFO L262 CegarLoopResult]: For program point L211-16(line 211) no Hoare annotation was computed. [2020-12-07 15:48:50,362 INFO L258 CegarLoopResult]: At program point L261-3(line 261) the Hoare annotation is: false [2020-12-07 15:48:50,362 INFO L258 CegarLoopResult]: At program point L261-4(line 261) the Hoare annotation is: false [2020-12-07 15:48:50,362 INFO L258 CegarLoopResult]: At program point L6305-34(lines 6301 6306) the Hoare annotation is: false [2020-12-07 15:48:50,362 INFO L262 CegarLoopResult]: For program point L6305-35(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,363 INFO L262 CegarLoopResult]: For program point L6305-33(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,363 INFO L262 CegarLoopResult]: For program point L6305-38(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,363 INFO L265 CegarLoopResult]: At program point L9857(line 9857) the Hoare annotation is: true [2020-12-07 15:48:50,363 INFO L262 CegarLoopResult]: For program point L6305-37(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,364 INFO L262 CegarLoopResult]: For program point L6305-40(line 6305) no Hoare annotation was computed. [2020-12-07 15:48:50,364 INFO L258 CegarLoopResult]: At program point L6305-41(lines 6301 6306) the Hoare annotation is: false [2020-12-07 15:48:50,364 INFO L258 CegarLoopResult]: At program point L6852-1(lines 6849 6853) the Hoare annotation is: false [2020-12-07 15:48:50,364 INFO L258 CegarLoopResult]: At program point L6852(lines 6849 6853) the Hoare annotation is: false [2020-12-07 15:48:50,365 INFO L258 CegarLoopResult]: At program point L6935-1(lines 6931 6936) the Hoare annotation is: false [2020-12-07 15:48:50,365 INFO L258 CegarLoopResult]: At program point L6935(lines 6931 6936) the Hoare annotation is: false [2020-12-07 15:48:50,365 INFO L262 CegarLoopResult]: For program point L9545(lines 9545 9547) no Hoare annotation was computed. [2020-12-07 15:48:50,365 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-07 15:48:50,365 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2020-12-07 15:48:50,366 INFO L262 CegarLoopResult]: For program point L9529(lines 9529 9533) no Hoare annotation was computed. [2020-12-07 15:48:50,366 INFO L262 CegarLoopResult]: For program point L9563(lines 9563 9567) no Hoare annotation was computed. [2020-12-07 15:48:50,366 INFO L258 CegarLoopResult]: At program point L6294(lines 6291 6295) the Hoare annotation is: false [2020-12-07 15:48:50,366 INFO L258 CegarLoopResult]: At program point L6294-1(lines 6291 6295) the Hoare annotation is: false [2020-12-07 15:48:50,366 INFO L262 CegarLoopResult]: For program point L9548(lines 9548 9550) no Hoare annotation was computed. [2020-12-07 15:48:50,367 INFO L258 CegarLoopResult]: At program point L266(line 266) the Hoare annotation is: (and (= (select |#valid| |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base|) 1) (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 16) (not (= |ULTIMATE.start_aws_array_list_comparator_string_harness_~#str_a~1.base| 0))) [2020-12-07 15:48:50,367 INFO L258 CegarLoopResult]: At program point L266-1(line 266) the Hoare annotation is: false [2020-12-07 15:48:50,367 INFO L258 CegarLoopResult]: At program point L266-2(line 266) the Hoare annotation is: false [2020-12-07 15:48:50,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:48:50 BoogieIcfgContainer [2020-12-07 15:48:50,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-07 15:48:50,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-07 15:48:50,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-07 15:48:50,394 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-07 15:48:50,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:25" (3/4) ... [2020-12-07 15:48:50,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-07 15:48:50,428 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 138 nodes and edges [2020-12-07 15:48:50,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2020-12-07 15:48:50,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2020-12-07 15:48:50,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-07 15:48:50,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-07 15:48:50,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-07 15:48:50,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-07 15:48:50,450 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-07 15:48:50,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\valid[str_a] == 1 && !(\result == 0)) && \result + 1 <= 0) && !(str_a == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && !(str_a == str_b)) && !(0 == str_b)) || ((((((((nondet_parameter_b / 256 * 256 == nondet_parameter_b && \valid[str_a] == 1) && !(\result == 0)) && !(str_a == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && !(str_a == str_b)) && !(0 == str_b)) [2020-12-07 15:48:50,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((nondet_parameter_b / 256 * 256 == nondet_parameter_b && \valid[str_a] == 1) && !(\result == 0)) && !(str_a == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && !(str_a == str_b)) && !(0 == str_b) [2020-12-07 15:48:51,910 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-07 15:48:51,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-07 15:48:51,912 INFO L168 Benchmark]: Toolchain (without parser) took 42648.51 ms. Allocated memory was 54.5 MB in the beginning and 570.4 MB in the end (delta: 515.9 MB). Free memory was 32.9 MB in the beginning and 488.8 MB in the end (delta: -455.9 MB). Peak memory consumption was 411.6 MB. Max. memory is 16.1 GB. [2020-12-07 15:48:51,913 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 26.8 MB in the beginning and 26.7 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-07 15:48:51,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4941.44 ms. Allocated memory was 54.5 MB in the beginning and 113.2 MB in the end (delta: 58.7 MB). Free memory was 32.6 MB in the beginning and 62.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 76.8 MB. Max. memory is 16.1 GB. [2020-12-07 15:48:51,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 335.59 ms. Allocated memory is still 113.2 MB. Free memory was 62.6 MB in the beginning and 49.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-07 15:48:51,915 INFO L168 Benchmark]: Boogie Preprocessor took 196.42 ms. Allocated memory is still 113.2 MB. Free memory was 49.8 MB in the beginning and 40.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-07 15:48:51,916 INFO L168 Benchmark]: RCFGBuilder took 10713.33 ms. Allocated memory was 113.2 MB in the beginning and 474.0 MB in the end (delta: 360.7 MB). Free memory was 40.4 MB in the beginning and 139.7 MB in the end (delta: -99.3 MB). Peak memory consumption was 270.1 MB. Max. memory is 16.1 GB. [2020-12-07 15:48:51,916 INFO L168 Benchmark]: TraceAbstraction took 24935.46 ms. Allocated memory was 474.0 MB in the beginning and 570.4 MB in the end (delta: 96.5 MB). Free memory was 139.7 MB in the beginning and 398.0 MB in the end (delta: -258.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-07 15:48:51,917 INFO L168 Benchmark]: Witness Printer took 1517.65 ms. Allocated memory is still 570.4 MB. Free memory was 398.0 MB in the beginning and 488.8 MB in the end (delta: -90.8 MB). Peak memory consumption was 257.9 MB. Max. memory is 16.1 GB. [2020-12-07 15:48:51,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 26.8 MB in the beginning and 26.7 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4941.44 ms. Allocated memory was 54.5 MB in the beginning and 113.2 MB in the end (delta: 58.7 MB). Free memory was 32.6 MB in the beginning and 62.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 76.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 335.59 ms. Allocated memory is still 113.2 MB. Free memory was 62.6 MB in the beginning and 49.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 196.42 ms. Allocated memory is still 113.2 MB. Free memory was 49.8 MB in the beginning and 40.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10713.33 ms. Allocated memory was 113.2 MB in the beginning and 474.0 MB in the end (delta: 360.7 MB). Free memory was 40.4 MB in the beginning and 139.7 MB in the end (delta: -99.3 MB). Peak memory consumption was 270.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24935.46 ms. Allocated memory was 474.0 MB in the beginning and 570.4 MB in the end (delta: 96.5 MB). Free memory was 139.7 MB in the beginning and 398.0 MB in the end (delta: -258.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 1517.65 ms. Allocated memory is still 570.4 MB. Free memory was 398.0 MB in the beginning and 488.8 MB in the end (delta: -90.8 MB). Peak memory consumption was 257.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6931]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9857]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9554]: Loop Invariant Derived loop invariant: ((((((((\valid[str_a] == 1 && !(\result == 0)) && \result + 1 <= 0) && !(str_a == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && !(str_a == str_b)) && !(0 == str_b)) || ((((((((nondet_parameter_b / 256 * 256 == nondet_parameter_b && \valid[str_a] == 1) && !(\result == 0)) && !(str_a == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && !(str_a == str_b)) && !(0 == str_b)) - InvariantResult [Line: 6931]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: (\valid[str_a] == 1 && max_size == 16) && !(str_a == 0) - InvariantResult [Line: 6938]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6855]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6855]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6938]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6849]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9518]: Loop Invariant Derived loop invariant: (((((((nondet_parameter_b / 256 * 256 == nondet_parameter_b && \valid[str_a] == 1) && !(\result == 0)) && !(str_a == 0)) && !(\result == 0)) && !(\result == 0)) && !(str == 0)) && !(str_a == str_b)) && !(0 == str_b) - InvariantResult [Line: 6301]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.1s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2002 SDtfs, 7179 SDslu, 4279 SDs, 0 SdLazy, 541 SolverSat, 42 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=248occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1353 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 27 PreInvPairs, 34 NumberOfFragments, 159 HoareAnnotationTreeSize, 27 FomulaSimplifications, 8967 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 443 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 478 NumberOfCodeBlocks, 478 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 465 ConstructedInterpolants, 0 QuantifiedInterpolants, 49515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 correct! Received shutdown request...