./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg --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 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:22:31,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:22:31,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:22:31,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:22:31,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:22:31,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:22:31,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:22:31,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:22:31,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:22:31,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:22:31,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:22:31,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:22:31,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:22:31,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:22:31,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:22:31,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:22:31,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:22:31,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:22:31,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:22:31,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:22:31,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:22:31,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:22:31,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:22:31,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:22:31,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:22:31,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:22:31,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:22:31,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:22:31,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:22:31,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:22:31,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:22:31,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:22:31,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:22:31,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:22:31,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:22:31,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:22:31,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:22:31,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:22:31,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:22:31,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:22:31,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:22:31,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 09:22:31,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:22:31,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:22:31,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:22:31,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:22:31,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:22:31,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:22:31,709 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:22:31,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:22:31,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:22:31,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:22:31,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:22:31,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:22:31,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:22:31,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:22:31,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:22:31,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:22:31,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:22:31,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:22:31,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:22:31,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:22:31,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:22:31,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:22:31,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:22:31,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:22:31,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:22:31,714 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:22:31,714 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:22:31,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:22:31,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:22:31,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 [2021-10-28 09:22:32,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:22:32,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:22:32,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:22:32,100 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:22:32,101 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:22:32,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2021-10-28 09:22:32,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/data/a0bac7139/6e6db1e530b340208d318ddb54561929/FLAG238545e2f [2021-10-28 09:22:33,099 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:22:33,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2021-10-28 09:22:33,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/data/a0bac7139/6e6db1e530b340208d318ddb54561929/FLAG238545e2f [2021-10-28 09:22:33,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/data/a0bac7139/6e6db1e530b340208d318ddb54561929 [2021-10-28 09:22:33,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:22:33,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:22:33,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:22:33,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:22:33,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:22:33,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:22:33" (1/1) ... [2021-10-28 09:22:33,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1877c692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:33, skipping insertion in model container [2021-10-28 09:22:33,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:22:33" (1/1) ... [2021-10-28 09:22:33,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:22:33,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:22:34,043 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2021-10-28 09:22:34,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2021-10-28 09:22:34,076 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 09:22:34,083 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 09:22:34,955 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,962 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,963 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,964 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,965 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,980 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,981 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,983 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:34,984 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:35,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 09:22:35,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 09:22:35,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 09:22:35,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 09:22:35,569 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 09:22:35,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 09:22:35,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 09:22:35,571 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 09:22:35,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 09:22:35,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 09:22:35,822 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 09:22:36,021 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,022 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:22:36,128 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:22:36,144 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2021-10-28 09:22:36,159 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2021-10-28 09:22:36,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 09:22:36,163 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 09:22:36,217 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,218 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,219 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,219 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,220 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,227 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,228 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,229 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,230 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 09:22:36,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 09:22:36,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 09:22:36,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 09:22:36,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 09:22:36,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 09:22:36,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 09:22:36,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 09:22:36,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 09:22:36,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 09:22:36,301 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 09:22:36,370 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,371 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 09:22:36,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:22:36,720 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:22:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36 WrapperNode [2021-10-28 09:22:36,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:22:36,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:22:36,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:22:36,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:22:36,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:36,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:36,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:22:36,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:22:36,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:22:36,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:22:36,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:36,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:37,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:37,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:37,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:37,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:37,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:37,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:22:37,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:22:37,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:22:37,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:22:37,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (1/1) ... [2021-10-28 09:22:37,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:22:37,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:22:37,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:22:37,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:22:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:22:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:22:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:22:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:22:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:22:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:22:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:22:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:22:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:22:38,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:22:38,221 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2021-10-28 09:22:38,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:22:38 BoogieIcfgContainer [2021-10-28 09:22:38,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:22:38,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:22:38,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:22:38,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:22:38,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:22:33" (1/3) ... [2021-10-28 09:22:38,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f1988f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:22:38, skipping insertion in model container [2021-10-28 09:22:38,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:22:36" (2/3) ... [2021-10-28 09:22:38,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f1988f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:22:38, skipping insertion in model container [2021-10-28 09:22:38,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:22:38" (3/3) ... [2021-10-28 09:22:38,232 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i [2021-10-28 09:22:38,238 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:22:38,239 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 09:22:38,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:22:38,298 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:22:38,299 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 09:22:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 91 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:38,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:22:38,325 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:22:38,326 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:22:38,327 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:22:38,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:22:38,333 INFO L85 PathProgramCache]: Analyzing trace with hash 690694871, now seen corresponding path program 1 times [2021-10-28 09:22:38,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:22:38,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910955987] [2021-10-28 09:22:38,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:22:38,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:22:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:22:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:22:38,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:22:38,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910955987] [2021-10-28 09:22:38,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910955987] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:22:38,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:22:38,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:22:38,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050521954] [2021-10-28 09:22:38,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:22:38,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:22:38,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:22:38,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:22:38,817 INFO L87 Difference]: Start difference. First operand has 92 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 91 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:22:38,844 INFO L93 Difference]: Finished difference Result 178 states and 240 transitions. [2021-10-28 09:22:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:22:38,846 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 09:22:38,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:22:38,856 INFO L225 Difference]: With dead ends: 178 [2021-10-28 09:22:38,857 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 09:22:38,860 INFO L786 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 [2021-10-28 09:22:38,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 09:22:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 09:22:38,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 86 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2021-10-28 09:22:38,901 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 29 [2021-10-28 09:22:38,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:22:38,902 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2021-10-28 09:22:38,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2021-10-28 09:22:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:22:38,904 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:22:38,904 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:22:38,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:22:38,905 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:22:38,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:22:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash -72208045, now seen corresponding path program 1 times [2021-10-28 09:22:38,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:22:38,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663611177] [2021-10-28 09:22:38,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:22:38,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:22:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:22:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:22:39,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:22:39,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663611177] [2021-10-28 09:22:39,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663611177] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:22:39,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:22:39,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:22:39,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655686171] [2021-10-28 09:22:39,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:22:39,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:22:39,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:22:39,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:22:39,218 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:39,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:22:39,357 INFO L93 Difference]: Finished difference Result 223 states and 281 transitions. [2021-10-28 09:22:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:22:39,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 09:22:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:22:39,359 INFO L225 Difference]: With dead ends: 223 [2021-10-28 09:22:39,359 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 09:22:39,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:22:39,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 09:22:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 09:22:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2380952380952381) internal successors, (104), 86 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2021-10-28 09:22:39,383 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 29 [2021-10-28 09:22:39,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:22:39,383 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2021-10-28 09:22:39,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:39,385 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2021-10-28 09:22:39,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:22:39,387 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:22:39,387 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:22:39,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:22:39,388 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:22:39,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:22:39,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1845709935, now seen corresponding path program 1 times [2021-10-28 09:22:39,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:22:39,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700177491] [2021-10-28 09:22:39,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:22:39,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:22:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:22:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:22:39,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:22:39,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700177491] [2021-10-28 09:22:39,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700177491] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:22:39,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:22:39,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:22:39,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501271976] [2021-10-28 09:22:39,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:22:39,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:22:39,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:22:39,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:22:39,759 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:40,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:22:40,251 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2021-10-28 09:22:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 09:22:40,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-28 09:22:40,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:22:40,255 INFO L225 Difference]: With dead ends: 125 [2021-10-28 09:22:40,257 INFO L226 Difference]: Without dead ends: 88 [2021-10-28 09:22:40,258 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:22:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-28 09:22:40,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2021-10-28 09:22:40,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 86 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2021-10-28 09:22:40,282 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 40 [2021-10-28 09:22:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:22:40,283 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2021-10-28 09:22:40,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:40,284 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2021-10-28 09:22:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 09:22:40,288 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:22:40,288 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:22:40,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:22:40,289 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:22:40,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:22:40,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1247248327, now seen corresponding path program 1 times [2021-10-28 09:22:40,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:22:40,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340752372] [2021-10-28 09:22:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:22:40,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:22:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:22:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:22:40,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:22:40,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340752372] [2021-10-28 09:22:40,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340752372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:22:40,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:22:40,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:22:40,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489945224] [2021-10-28 09:22:40,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:22:40,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:22:40,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:22:40,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:22:40,513 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:22:40,762 INFO L93 Difference]: Finished difference Result 133 states and 159 transitions. [2021-10-28 09:22:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:22:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-28 09:22:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:22:40,764 INFO L225 Difference]: With dead ends: 133 [2021-10-28 09:22:40,764 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 09:22:40,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:22:40,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 09:22:40,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 09:22:40,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2142857142857142) internal successors, (102), 86 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2021-10-28 09:22:40,774 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 45 [2021-10-28 09:22:40,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:22:40,774 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2021-10-28 09:22:40,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2021-10-28 09:22:40,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:22:40,777 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:22:40,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:22:40,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:22:40,778 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:22:40,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:22:40,778 INFO L85 PathProgramCache]: Analyzing trace with hash 725061795, now seen corresponding path program 1 times [2021-10-28 09:22:40,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:22:40,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456258702] [2021-10-28 09:22:40,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:22:40,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:22:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:22:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:22:40,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:22:40,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456258702] [2021-10-28 09:22:40,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456258702] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:22:40,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:22:40,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:22:40,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609865417] [2021-10-28 09:22:40,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:22:40,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:22:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:22:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:22:40,984 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:41,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:22:41,387 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2021-10-28 09:22:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:22:41,388 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-28 09:22:41,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:22:41,410 INFO L225 Difference]: With dead ends: 137 [2021-10-28 09:22:41,410 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 09:22:41,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:22:41,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 09:22:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 09:22:41,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 86 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:41,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2021-10-28 09:22:41,427 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 50 [2021-10-28 09:22:41,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:22:41,427 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2021-10-28 09:22:41,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:41,428 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2021-10-28 09:22:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 09:22:41,429 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:22:41,429 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:22:41,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:22:41,430 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:22:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:22:41,431 INFO L85 PathProgramCache]: Analyzing trace with hash 584513185, now seen corresponding path program 1 times [2021-10-28 09:22:41,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:22:41,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203752098] [2021-10-28 09:22:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:22:41,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:22:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:22:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:22:41,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:22:41,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203752098] [2021-10-28 09:22:41,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203752098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:22:41,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:22:41,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:22:41,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466653731] [2021-10-28 09:22:41,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:22:41,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:22:41,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:22:41,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:22:41,825 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:41,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:22:41,879 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2021-10-28 09:22:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:22:41,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-28 09:22:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:22:41,879 INFO L225 Difference]: With dead ends: 87 [2021-10-28 09:22:41,879 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:22:41,880 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:22:41,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:22:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:22:41,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:41,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:22:41,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2021-10-28 09:22:41,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:22:41,881 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:22:41,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:22:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:22:41,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:22:41,886 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:22:41,887 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:22:41,887 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:22:41,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:22:41,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:22:41,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:41,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:22:42,034 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,035 INFO L853 garLoopResultBuilder]: At program point L8013(lines 7986 8016) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 09:22:42,035 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:22:42,035 INFO L853 garLoopResultBuilder]: At program point L6891-1(lines 6890 6892) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,035 INFO L853 garLoopResultBuilder]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2021-10-28 09:22:42,036 INFO L860 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-10-28 09:22:42,036 INFO L853 garLoopResultBuilder]: At program point L7455(lines 7437 7456) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 09:22:42,036 INFO L857 garLoopResultBuilder]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 09:22:42,036 INFO L857 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 09:22:42,036 INFO L857 garLoopResultBuilder]: For program point L6811-3(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 09:22:42,037 INFO L857 garLoopResultBuilder]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 09:22:42,037 INFO L857 garLoopResultBuilder]: For program point L7439(line 7439) no Hoare annotation was computed. [2021-10-28 09:22:42,037 INFO L857 garLoopResultBuilder]: For program point L7439-2(line 7439) no Hoare annotation was computed. [2021-10-28 09:22:42,037 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-28 09:22:42,037 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-10-28 09:22:42,038 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-10-28 09:22:42,038 INFO L857 garLoopResultBuilder]: For program point L7440-2(line 7440) no Hoare annotation was computed. [2021-10-28 09:22:42,038 INFO L857 garLoopResultBuilder]: For program point L7440(line 7440) no Hoare annotation was computed. [2021-10-28 09:22:42,038 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:22:42,038 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,039 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,039 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,039 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,040 INFO L857 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,040 INFO L857 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,041 INFO L857 garLoopResultBuilder]: For program point L7441(lines 7441 7445) no Hoare annotation was computed. [2021-10-28 09:22:42,043 INFO L857 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-10-28 09:22:42,043 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,043 INFO L857 garLoopResultBuilder]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2021-10-28 09:22:42,044 INFO L857 garLoopResultBuilder]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2021-10-28 09:22:42,044 INFO L853 garLoopResultBuilder]: At program point L8005-3(lines 8005 8011) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 09:22:42,044 INFO L857 garLoopResultBuilder]: For program point L8005-2(lines 8005 8011) no Hoare annotation was computed. [2021-10-28 09:22:42,045 INFO L853 garLoopResultBuilder]: At program point L6816-1(lines 6807 6817) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,045 INFO L853 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2021-10-28 09:22:42,045 INFO L857 garLoopResultBuilder]: For program point L8005-4(lines 8005 8011) no Hoare annotation was computed. [2021-10-28 09:22:42,051 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:22:42,051 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:22:42,051 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:22:42,052 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:22:42,052 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:22:42,052 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:22:42,052 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:22:42,052 INFO L857 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-10-28 09:22:42,053 INFO L857 garLoopResultBuilder]: For program point L210-7(lines 7997 8001) no Hoare annotation was computed. [2021-10-28 09:22:42,053 INFO L857 garLoopResultBuilder]: For program point L8006(lines 8006 8010) no Hoare annotation was computed. [2021-10-28 09:22:42,053 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,053 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,053 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,054 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,054 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,054 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,054 INFO L857 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,054 INFO L860 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: true [2021-10-28 09:22:42,054 INFO L857 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-10-28 09:22:42,057 INFO L853 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-10-28 09:22:42,057 INFO L853 garLoopResultBuilder]: At program point L261-2(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,057 INFO L853 garLoopResultBuilder]: At program point L261-3(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,058 INFO L853 garLoopResultBuilder]: At program point L261-4(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,058 INFO L857 garLoopResultBuilder]: For program point L7446(lines 7446 7454) no Hoare annotation was computed. [2021-10-28 09:22:42,058 INFO L857 garLoopResultBuilder]: For program point L8916(lines 8916 8918) no Hoare annotation was computed. [2021-10-28 09:22:42,058 INFO L857 garLoopResultBuilder]: For program point L8916-1(lines 8916 8917) no Hoare annotation was computed. [2021-10-28 09:22:42,058 INFO L857 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,059 INFO L857 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,059 INFO L857 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,059 INFO L857 garLoopResultBuilder]: For program point L8916-3(lines 8916 8917) no Hoare annotation was computed. [2021-10-28 09:22:42,059 INFO L853 garLoopResultBuilder]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 09:22:42,060 INFO L857 garLoopResultBuilder]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,060 INFO L857 garLoopResultBuilder]: For program point L8916-5(lines 8916 8918) no Hoare annotation was computed. [2021-10-28 09:22:42,060 INFO L857 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,060 INFO L857 garLoopResultBuilder]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,060 INFO L857 garLoopResultBuilder]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,062 INFO L857 garLoopResultBuilder]: For program point L6257-14(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,062 INFO L857 garLoopResultBuilder]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,062 INFO L853 garLoopResultBuilder]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 09:22:42,063 INFO L857 garLoopResultBuilder]: For program point L6257-19(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,063 INFO L857 garLoopResultBuilder]: For program point L6257-16(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,063 INFO L857 garLoopResultBuilder]: For program point L6257-17(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,063 INFO L857 garLoopResultBuilder]: For program point L6257-23(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,063 INFO L853 garLoopResultBuilder]: At program point L6257-20(lines 6253 6258) the Hoare annotation is: false [2021-10-28 09:22:42,063 INFO L857 garLoopResultBuilder]: For program point L6257-21(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,064 INFO L857 garLoopResultBuilder]: For program point L6257-26(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,064 INFO L853 garLoopResultBuilder]: At program point L6257-27(lines 6253 6258) the Hoare annotation is: false [2021-10-28 09:22:42,064 INFO L857 garLoopResultBuilder]: For program point L6257-24(line 6257) no Hoare annotation was computed. [2021-10-28 09:22:42,064 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:22:42,065 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 09:22:42,065 INFO L853 garLoopResultBuilder]: At program point L6804-1(lines 6801 6805) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,065 INFO L853 garLoopResultBuilder]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2021-10-28 09:22:42,065 INFO L853 garLoopResultBuilder]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,065 INFO L853 garLoopResultBuilder]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2021-10-28 09:22:42,066 INFO L857 garLoopResultBuilder]: For program point L8919(lines 8919 8923) no Hoare annotation was computed. [2021-10-28 09:22:42,067 INFO L853 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-10-28 09:22:42,067 INFO L853 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 09:22:42,070 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 09:22:42,072 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:22:42,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:22:42 BoogieIcfgContainer [2021-10-28 09:22:42,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:22:42,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:22:42,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:22:42,110 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:22:42,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:22:38" (3/4) ... [2021-10-28 09:22:42,114 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:22:42,142 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2021-10-28 09:22:42,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 09:22:42,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 09:22:42,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:22:42,438 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:22:42,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:22:42,441 INFO L168 Benchmark]: Toolchain (without parser) took 8882.07 ms. Allocated memory was 111.1 MB in the beginning and 237.0 MB in the end (delta: 125.8 MB). Free memory was 64.8 MB in the beginning and 140.3 MB in the end (delta: -75.6 MB). Peak memory consumption was 93.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:22:42,441 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 111.1 MB. Free memory is still 89.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:22:42,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3159.62 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 64.6 MB in the beginning and 90.4 MB in the end (delta: -25.8 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:22:42,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 252.31 ms. Allocated memory is still 146.8 MB. Free memory was 90.4 MB in the beginning and 80.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:22:42,442 INFO L168 Benchmark]: Boogie Preprocessor took 143.39 ms. Allocated memory is still 146.8 MB. Free memory was 80.4 MB in the beginning and 75.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:22:42,443 INFO L168 Benchmark]: RCFGBuilder took 1104.27 ms. Allocated memory was 146.8 MB in the beginning and 195.0 MB in the end (delta: 48.2 MB). Free memory was 75.7 MB in the beginning and 122.5 MB in the end (delta: -46.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:22:42,443 INFO L168 Benchmark]: TraceAbstraction took 3884.06 ms. Allocated memory is still 195.0 MB. Free memory was 121.4 MB in the beginning and 88.7 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:22:42,444 INFO L168 Benchmark]: Witness Printer took 329.43 ms. Allocated memory was 195.0 MB in the beginning and 237.0 MB in the end (delta: 41.9 MB). Free memory was 88.7 MB in the beginning and 140.3 MB in the end (delta: -51.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:22:42,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 111.1 MB. Free memory is still 89.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3159.62 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 64.6 MB in the beginning and 90.4 MB in the end (delta: -25.8 MB). Peak memory consumption was 68.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 252.31 ms. Allocated memory is still 146.8 MB. Free memory was 90.4 MB in the beginning and 80.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 143.39 ms. Allocated memory is still 146.8 MB. Free memory was 80.4 MB in the beginning and 75.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1104.27 ms. Allocated memory was 146.8 MB in the beginning and 195.0 MB in the end (delta: 48.2 MB). Free memory was 75.7 MB in the beginning and 122.5 MB in the end (delta: -46.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3884.06 ms. Allocated memory is still 195.0 MB. Free memory was 121.4 MB in the beginning and 88.7 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * Witness Printer took 329.43 ms. Allocated memory was 195.0 MB in the beginning and 237.0 MB in the end (delta: 41.9 MB). Free memory was 88.7 MB in the beginning and 140.3 MB in the end (delta: -51.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 463 SDtfs, 1484 SDslu, 1548 SDs, 0 SdLazy, 397 SolverSat, 77 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 47 NumberOfFragments, 143 HoareAnnotationTreeSize, 23 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8005]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 7986]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7437]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) RESULT: Ultimate proved your program to be correct! [2021-10-28 09:22:42,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d8b194-77fb-4969-a646-a64925fe5caa/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...