./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c8151fb171c9b453710acc6c97ec40a00d3609946ad41877389a6ccf870db18 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:46:47,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:46:47,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:46:47,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:46:47,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:46:47,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:46:47,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:46:47,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:46:47,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:46:47,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:46:47,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:46:47,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:46:47,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:46:47,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:46:47,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:46:47,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:46:47,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:46:47,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:46:47,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:46:47,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:46:47,992 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:46:47,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:46:47,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:46:47,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:46:47,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:46:48,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:46:48,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:46:48,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:46:48,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:46:48,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:46:48,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:46:48,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:46:48,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:46:48,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:46:48,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:46:48,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:46:48,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:46:48,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:46:48,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:46:48,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:46:48,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:46:48,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:46:48,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 10:46:48,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:46:48,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:46:48,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:46:48,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:46:48,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:46:48,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:46:48,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:46:48,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:46:48,035 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:46:48,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:46:48,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:46:48,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:46:48,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:46:48,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:46:48,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:46:48,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:46:48,037 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:46:48,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:46:48,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:46:48,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:46:48,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:46:48,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:46:48,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:46:48,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:46:48,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:46:48,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:46:48,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:46:48,039 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:46:48,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:46:48,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:46:48,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8151fb171c9b453710acc6c97ec40a00d3609946ad41877389a6ccf870db18 [2022-07-12 10:46:48,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:46:48,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:46:48,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:46:48,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:46:48,210 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:46:48,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i [2022-07-12 10:46:48,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9971e77f3/5c2b01e7247c4bc7b723bfe5117a2406/FLAG6aba6bcb6 [2022-07-12 10:46:48,780 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:46:48,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i [2022-07-12 10:46:48,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9971e77f3/5c2b01e7247c4bc7b723bfe5117a2406/FLAG6aba6bcb6 [2022-07-12 10:46:49,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9971e77f3/5c2b01e7247c4bc7b723bfe5117a2406 [2022-07-12 10:46:49,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:46:49,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:46:49,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:46:49,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:46:49,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:46:49,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:46:49" (1/1) ... [2022-07-12 10:46:49,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0949ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:49, skipping insertion in model container [2022-07-12 10:46:49,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:46:49" (1/1) ... [2022-07-12 10:46:49,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:46:49,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:46:49,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i[4504,4517] [2022-07-12 10:46:49,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i[4564,4577] [2022-07-12 10:46:49,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,704 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,704 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,705 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,705 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,716 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,716 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,719 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,720 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:49,916 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 10:46:49,917 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 10:46:49,917 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 10:46:49,918 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 10:46:49,919 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 10:46:49,919 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 10:46:49,920 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 10:46:49,920 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 10:46:49,921 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 10:46:49,921 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 10:46:50,029 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 10:46:50,116 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,117 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:46:50,196 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:46:50,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i[4504,4517] [2022-07-12 10:46:50,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i[4564,4577] [2022-07-12 10:46:50,227 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,228 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,228 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,228 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,229 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,232 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,232 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,233 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,233 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 10:46:50,249 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 10:46:50,249 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 10:46:50,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 10:46:50,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 10:46:50,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 10:46:50,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 10:46:50,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 10:46:50,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 10:46:50,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 10:46:50,288 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 10:46:50,319 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,321 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:46:50,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:46:50,476 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:46:50,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50 WrapperNode [2022-07-12 10:46:50,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:46:50,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:46:50,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:46:50,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:46:50,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,598 INFO L137 Inliner]: procedures = 691, calls = 2614, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 789 [2022-07-12 10:46:50,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:46:50,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:46:50,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:46:50,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:46:50,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:46:50,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:46:50,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:46:50,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:46:50,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (1/1) ... [2022-07-12 10:46:50,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:46:50,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:46:50,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 10:46:50,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 10:46:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:46:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 10:46:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 10:46:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:46:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 10:46:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 10:46:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 10:46:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:46:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-07-12 10:46:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-07-12 10:46:50,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:46:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:46:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 10:46:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 10:46:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-12 10:46:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-12 10:46:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-12 10:46:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-12 10:46:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 10:46:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 10:46:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:46:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 10:46:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-12 10:46:50,765 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-12 10:46:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:46:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str_ignore_case [2022-07-12 10:46:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str_ignore_case [2022-07-12 10:46:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:46:50,977 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:46:50,978 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:46:51,582 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:46:51,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:46:51,587 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 10:46:51,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:46:51 BoogieIcfgContainer [2022-07-12 10:46:51,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:46:51,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:46:51,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:46:51,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:46:51,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:46:49" (1/3) ... [2022-07-12 10:46:51,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4fd10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:46:51, skipping insertion in model container [2022-07-12 10:46:51,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:46:50" (2/3) ... [2022-07-12 10:46:51,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4fd10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:46:51, skipping insertion in model container [2022-07-12 10:46:51,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:46:51" (3/3) ... [2022-07-12 10:46:51,601 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_ignore_case_harness.i [2022-07-12 10:46:51,613 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:46:51,613 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:46:51,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:46:51,668 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@54e27ca8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@43e5e62d [2022-07-12 10:46:51,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 10:46:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 58 states have internal predecessors, (69), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-12 10:46:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 10:46:51,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:46:51,678 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:46:51,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:46:51,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:46:51,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1470812839, now seen corresponding path program 1 times [2022-07-12 10:46:51,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:46:51,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046944422] [2022-07-12 10:46:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:46:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:46:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 10:46:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 10:46:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 10:46:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 10:46:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 10:46:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 10:46:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 10:46:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 10:46:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 10:46:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 10:46:52,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:46:52,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046944422] [2022-07-12 10:46:52,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046944422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:46:52,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:46:52,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 10:46:52,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340801501] [2022-07-12 10:46:52,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:46:52,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 10:46:52,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:46:52,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 10:46:52,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 10:46:52,274 INFO L87 Difference]: Start difference. First operand has 87 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 58 states have internal predecessors, (69), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 10:46:52,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:46:52,501 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2022-07-12 10:46:52,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:46:52,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 68 [2022-07-12 10:46:52,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:46:52,517 INFO L225 Difference]: With dead ends: 176 [2022-07-12 10:46:52,517 INFO L226 Difference]: Without dead ends: 87 [2022-07-12 10:46:52,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:46:52,525 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 82 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 10:46:52,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 138 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 10:46:52,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-12 10:46:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2022-07-12 10:46:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.22) internal successors, (61), 53 states have internal predecessors, (61), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-07-12 10:46:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2022-07-12 10:46:52,562 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 104 transitions. Word has length 68 [2022-07-12 10:46:52,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:46:52,562 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 104 transitions. [2022-07-12 10:46:52,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 10:46:52,563 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2022-07-12 10:46:52,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 10:46:52,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:46:52,565 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:46:52,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:46:52,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:46:52,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:46:52,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1466791209, now seen corresponding path program 1 times [2022-07-12 10:46:52,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:46:52,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261090918] [2022-07-12 10:46:52,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:46:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:46:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 10:46:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 10:46:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 10:46:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 10:46:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 10:46:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 10:46:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 10:46:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 10:46:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 10:46:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-12 10:46:52,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:46:52,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261090918] [2022-07-12 10:46:52,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261090918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:46:52,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:46:52,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 10:46:52,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645791364] [2022-07-12 10:46:52,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:46:52,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 10:46:52,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:46:52,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 10:46:52,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 10:46:52,854 INFO L87 Difference]: Start difference. First operand 82 states and 104 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 10:46:53,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:46:53,187 INFO L93 Difference]: Finished difference Result 146 states and 193 transitions. [2022-07-12 10:46:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:46:53,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 68 [2022-07-12 10:46:53,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:46:53,189 INFO L225 Difference]: With dead ends: 146 [2022-07-12 10:46:53,189 INFO L226 Difference]: Without dead ends: 101 [2022-07-12 10:46:53,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 10:46:53,190 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 89 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 10:46:53,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 10:46:53,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-12 10:46:53,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 85. [2022-07-12 10:46:53,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 55 states have internal predecessors, (63), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-12 10:46:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 108 transitions. [2022-07-12 10:46:53,198 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 108 transitions. Word has length 68 [2022-07-12 10:46:53,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:46:53,198 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 108 transitions. [2022-07-12 10:46:53,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 10:46:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 108 transitions. [2022-07-12 10:46:53,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 10:46:53,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:46:53,199 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:46:53,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 10:46:53,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:46:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:46:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash 982808921, now seen corresponding path program 1 times [2022-07-12 10:46:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:46:53,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754072511] [2022-07-12 10:46:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:46:53,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:46:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 10:46:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 10:46:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 10:46:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 10:46:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 10:46:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 10:46:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 10:46:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 10:46:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 10:46:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-12 10:46:53,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:46:53,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754072511] [2022-07-12 10:46:53,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754072511] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:46:53,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108237419] [2022-07-12 10:46:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:46:53,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:46:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:46:53,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:46:53,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 10:46:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:53,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-12 10:46:53,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:46:53,977 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-12 10:46:53,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 10:46:53,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108237419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:46:53,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 10:46:53,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-07-12 10:46:53,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92622911] [2022-07-12 10:46:53,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:46:53,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:46:53,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:46:53,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:46:53,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 10:46:53,978 INFO L87 Difference]: Start difference. First operand 85 states and 108 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 10:46:54,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:46:54,035 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2022-07-12 10:46:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:46:54,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 68 [2022-07-12 10:46:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:46:54,037 INFO L225 Difference]: With dead ends: 123 [2022-07-12 10:46:54,037 INFO L226 Difference]: Without dead ends: 82 [2022-07-12 10:46:54,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:46:54,038 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 2 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 10:46:54,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 347 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 10:46:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-07-12 10:46:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-07-12 10:46:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.18) internal successors, (59), 53 states have internal predecessors, (59), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-07-12 10:46:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 102 transitions. [2022-07-12 10:46:54,045 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 102 transitions. Word has length 68 [2022-07-12 10:46:54,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:46:54,045 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 102 transitions. [2022-07-12 10:46:54,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-12 10:46:54,046 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 102 transitions. [2022-07-12 10:46:54,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 10:46:54,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:46:54,047 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:46:54,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 10:46:54,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:46:54,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:46:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:46:54,268 INFO L85 PathProgramCache]: Analyzing trace with hash -578368298, now seen corresponding path program 1 times [2022-07-12 10:46:54,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:46:54,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102598608] [2022-07-12 10:46:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:46:54,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:46:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 10:46:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 10:46:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 10:46:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 10:46:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 10:46:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 10:46:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 10:46:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 10:46:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 10:46:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 10:46:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 10:46:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:55,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 10:46:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:46:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 10:46:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:55,059 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-12 10:46:55,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:46:55,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102598608] [2022-07-12 10:46:55,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102598608] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:46:55,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143685472] [2022-07-12 10:46:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:46:55,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:46:55,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:46:55,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:46:55,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 10:46:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:46:55,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-12 10:46:55,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:46:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-12 10:46:56,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 10:46:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-12 10:46:57,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143685472] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 10:46:57,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 10:46:57,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 28, 15] total 56 [2022-07-12 10:46:57,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019288517] [2022-07-12 10:46:57,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 10:46:57,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-07-12 10:46:57,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:46:57,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-07-12 10:46:57,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2022-07-12 10:46:57,563 INFO L87 Difference]: Start difference. First operand 82 states and 102 transitions. Second operand has 56 states, 46 states have (on average 2.391304347826087) internal successors, (110), 43 states have internal predecessors, (110), 21 states have call successors, (49), 6 states have call predecessors, (49), 12 states have return successors, (46), 21 states have call predecessors, (46), 20 states have call successors, (46) [2022-07-12 10:46:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:46:57,565 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2022-07-12 10:46:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 10:46:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 46 states have (on average 2.391304347826087) internal successors, (110), 43 states have internal predecessors, (110), 21 states have call successors, (49), 6 states have call predecessors, (49), 12 states have return successors, (46), 21 states have call predecessors, (46), 20 states have call successors, (46) Word has length 96 [2022-07-12 10:46:57,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:46:57,567 INFO L225 Difference]: With dead ends: 82 [2022-07-12 10:46:57,567 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 10:46:57,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2022-07-12 10:46:57,572 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 10:46:57,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 10:46:57,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 10:46:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 10:46:57,574 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) [2022-07-12 10:46:57,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 10:46:57,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2022-07-12 10:46:57,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:46:57,575 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 10:46:57,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 46 states have (on average 2.391304347826087) internal successors, (110), 43 states have internal predecessors, (110), 21 states have call successors, (49), 6 states have call predecessors, (49), 12 states have return successors, (46), 21 states have call predecessors, (46), 20 states have call successors, (46) [2022-07-12 10:46:57,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 10:46:57,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 10:46:57,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 10:46:57,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 10:46:57,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-12 10:46:57,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 10:46:57,842 INFO L902 garLoopResultBuilder]: At program point can_fail_mallocENTRY(lines 6899 6903) the Hoare annotation is: true [2022-07-12 10:46:57,842 INFO L899 garLoopResultBuilder]: For program point L6900-3(lines 6900 6902) no Hoare annotation was computed. [2022-07-12 10:46:57,842 INFO L902 garLoopResultBuilder]: At program point L6902(line 6902) the Hoare annotation is: true [2022-07-12 10:46:57,842 INFO L899 garLoopResultBuilder]: For program point can_fail_mallocFINAL(lines 6899 6903) no Hoare annotation was computed. [2022-07-12 10:46:57,842 INFO L899 garLoopResultBuilder]: For program point L6900-1(lines 6900 6902) no Hoare annotation was computed. [2022-07-12 10:46:57,842 INFO L899 garLoopResultBuilder]: For program point can_fail_mallocEXIT(lines 6899 6903) no Hoare annotation was computed. [2022-07-12 10:46:57,842 INFO L902 garLoopResultBuilder]: At program point L6900(line 6900) the Hoare annotation is: true [2022-07-12 10:46:57,843 INFO L899 garLoopResultBuilder]: For program point L6902-1(line 6902) no Hoare annotation was computed. [2022-07-12 10:46:57,843 INFO L902 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2022-07-12 10:46:57,843 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2022-07-12 10:46:57,843 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-07-12 10:46:57,843 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-07-12 10:46:57,843 INFO L902 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: true [2022-07-12 10:46:57,843 INFO L899 garLoopResultBuilder]: For program point L7135(lines 7135 7139) no Hoare annotation was computed. [2022-07-12 10:46:57,843 INFO L899 garLoopResultBuilder]: For program point L7137-1(line 7137) no Hoare annotation was computed. [2022-07-12 10:46:57,843 INFO L899 garLoopResultBuilder]: For program point save_byte_from_arrayEXIT(lines 7134 7140) no Hoare annotation was computed. [2022-07-12 10:46:57,844 INFO L902 garLoopResultBuilder]: At program point L7137(line 7137) the Hoare annotation is: true [2022-07-12 10:46:57,844 INFO L899 garLoopResultBuilder]: For program point L7135-2(lines 7134 7140) no Hoare annotation was computed. [2022-07-12 10:46:57,844 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2022-07-12 10:46:57,844 INFO L895 garLoopResultBuilder]: At program point save_byte_from_arrayENTRY(lines 7134 7140) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2022-07-12 10:46:57,844 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-12 10:46:57,844 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-12 10:46:57,844 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-12 10:46:57,844 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseEXIT(lines 7731 7764) no Hoare annotation was computed. [2022-07-12 10:46:57,845 INFO L899 garLoopResultBuilder]: For program point L7748-4(lines 7748 7761) no Hoare annotation was computed. [2022-07-12 10:46:57,845 INFO L902 garLoopResultBuilder]: At program point aws_array_eq_c_str_ignore_caseENTRY(lines 7731 7764) the Hoare annotation is: true [2022-07-12 10:46:57,845 INFO L902 garLoopResultBuilder]: At program point L7748-3(lines 7748 7761) the Hoare annotation is: true [2022-07-12 10:46:57,845 INFO L899 garLoopResultBuilder]: For program point L7736(lines 7736 7738) no Hoare annotation was computed. [2022-07-12 10:46:57,845 INFO L902 garLoopResultBuilder]: At program point L7733-1(line 7733) the Hoare annotation is: true [2022-07-12 10:46:57,845 INFO L902 garLoopResultBuilder]: At program point L7733(line 7733) the Hoare annotation is: true [2022-07-12 10:46:57,845 INFO L899 garLoopResultBuilder]: For program point L7756(lines 7756 7760) no Hoare annotation was computed. [2022-07-12 10:46:57,845 INFO L899 garLoopResultBuilder]: For program point L7750(lines 7750 7754) no Hoare annotation was computed. [2022-07-12 10:46:57,846 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseFINAL(lines 7731 7764) no Hoare annotation was computed. [2022-07-12 10:46:57,846 INFO L899 garLoopResultBuilder]: For program point L7748-2(lines 7748 7761) no Hoare annotation was computed. [2022-07-12 10:46:57,846 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-12 10:46:57,846 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-12 10:46:57,846 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-12 10:46:57,846 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-12 10:46:57,846 INFO L902 garLoopResultBuilder]: At program point L7130(line 7130) the Hoare annotation is: true [2022-07-12 10:46:57,846 INFO L899 garLoopResultBuilder]: For program point assert_byte_from_buffer_matchesEXIT(lines 7128 7132) no Hoare annotation was computed. [2022-07-12 10:46:57,846 INFO L902 garLoopResultBuilder]: At program point assert_byte_from_buffer_matchesENTRY(lines 7128 7132) the Hoare annotation is: true [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point L7129-2(lines 7128 7132) no Hoare annotation was computed. [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point L7129(lines 7129 7131) no Hoare annotation was computed. [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point L7130-1(line 7130) no Hoare annotation was computed. [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-12 10:46:57,847 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point L8979-1(line 8979) no Hoare annotation was computed. [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point L8971(line 8971) no Hoare annotation was computed. [2022-07-12 10:46:57,847 INFO L899 garLoopResultBuilder]: For program point L8996(lines 8996 8998) no Hoare annotation was computed. [2022-07-12 10:46:57,848 INFO L895 garLoopResultBuilder]: At program point L6820-1(line 6820) the Hoare annotation is: false [2022-07-12 10:46:57,848 INFO L902 garLoopResultBuilder]: At program point L9000(line 9000) the Hoare annotation is: true [2022-07-12 10:46:57,848 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: false [2022-07-12 10:46:57,848 INFO L899 garLoopResultBuilder]: For program point L8967(lines 8967 8999) no Hoare annotation was computed. [2022-07-12 10:46:57,848 INFO L899 garLoopResultBuilder]: For program point L8988(lines 8988 8990) no Hoare annotation was computed. [2022-07-12 10:46:57,848 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 10:46:57,849 INFO L899 garLoopResultBuilder]: For program point L8988-1(lines 8967 8999) no Hoare annotation was computed. [2022-07-12 10:46:57,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 10:46:57,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 10:46:57,849 INFO L895 garLoopResultBuilder]: At program point L8984(line 8984) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-12 10:46:57,849 INFO L895 garLoopResultBuilder]: At program point L8972(line 8972) the Hoare annotation is: false [2022-07-12 10:46:57,849 INFO L899 garLoopResultBuilder]: For program point L8972-1(lines 8972 8974) no Hoare annotation was computed. [2022-07-12 10:46:57,849 INFO L895 garLoopResultBuilder]: At program point L8997(line 8997) the Hoare annotation is: false [2022-07-12 10:46:57,849 INFO L899 garLoopResultBuilder]: For program point L6825-1(line 6825) no Hoare annotation was computed. [2022-07-12 10:46:57,850 INFO L895 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2022-07-12 10:46:57,850 INFO L899 garLoopResultBuilder]: For program point L8972-3(lines 8972 8974) no Hoare annotation was computed. [2022-07-12 10:46:57,850 INFO L899 garLoopResultBuilder]: For program point L6821(line 6821) no Hoare annotation was computed. [2022-07-12 10:46:57,850 INFO L895 garLoopResultBuilder]: At program point L8989(line 8989) the Hoare annotation is: false [2022-07-12 10:46:57,850 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 10:46:57,850 INFO L899 garLoopResultBuilder]: For program point L8993(lines 8967 8999) no Hoare annotation was computed. [2022-07-12 10:46:57,850 INFO L895 garLoopResultBuilder]: At program point L8981(line 8981) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-12 10:46:57,851 INFO L895 garLoopResultBuilder]: At program point L8981-1(line 8981) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-12 10:46:57,851 INFO L895 garLoopResultBuilder]: At program point L8985(line 8985) the Hoare annotation is: false [2022-07-12 10:46:57,851 INFO L895 garLoopResultBuilder]: At program point L6826(lines 6818 6827) the Hoare annotation is: false [2022-07-12 10:46:57,851 INFO L895 garLoopResultBuilder]: At program point L8994(line 8994) the Hoare annotation is: false [2022-07-12 10:46:57,851 INFO L895 garLoopResultBuilder]: At program point L8978(line 8978) the Hoare annotation is: (and (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_array_eq_c_str_ignore_case_harness_~c_str~0#1.offset| 0)) [2022-07-12 10:46:57,851 INFO L895 garLoopResultBuilder]: At program point L8970(line 8970) the Hoare annotation is: false [2022-07-12 10:46:57,851 INFO L899 garLoopResultBuilder]: For program point L8978-1(lines 8967 8999) no Hoare annotation was computed. [2022-07-12 10:46:57,851 INFO L895 garLoopResultBuilder]: At program point L8970-1(line 8970) the Hoare annotation is: false [2022-07-12 10:46:57,852 INFO L899 garLoopResultBuilder]: For program point L6819-1(line 6819) no Hoare annotation was computed. [2022-07-12 10:46:57,852 INFO L895 garLoopResultBuilder]: At program point L6819(line 6819) the Hoare annotation is: false [2022-07-12 10:46:57,852 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-12 10:46:57,852 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-12 10:46:57,852 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-12 10:46:57,852 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-12 10:46:57,852 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-12 10:46:57,852 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-12 10:46:57,855 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-12 10:46:57,856 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 10:46:57,860 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:57,861 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:57,861 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-12 10:46:57,861 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-12 10:46:57,864 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:57,864 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:57,864 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-12 10:46:57,865 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-12 10:46:57,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 10:46:57 BoogieIcfgContainer [2022-07-12 10:46:57,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 10:46:57,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 10:46:57,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 10:46:57,866 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 10:46:57,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:46:51" (3/4) ... [2022-07-12 10:46:57,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 10:46:57,872 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_malloc [2022-07-12 10:46:57,872 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-12 10:46:57,872 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure save_byte_from_array [2022-07-12 10:46:57,872 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-12 10:46:57,872 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-12 10:46:57,873 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str_ignore_case [2022-07-12 10:46:57,873 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-12 10:46:57,873 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-12 10:46:57,873 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2022-07-12 10:46:57,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 124 nodes and edges [2022-07-12 10:46:57,881 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-07-12 10:46:57,882 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-07-12 10:46:57,882 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-12 10:46:57,883 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-12 10:46:57,884 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-12 10:46:57,884 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 10:46:57,885 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 10:46:57,904 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$) [2022-07-12 10:46:58,209 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 10:46:58,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 10:46:58,210 INFO L158 Benchmark]: Toolchain (without parser) took 9199.32ms. Allocated memory was 115.3MB in the beginning and 350.2MB in the end (delta: 234.9MB). Free memory was 81.8MB in the beginning and 204.9MB in the end (delta: -123.2MB). Peak memory consumption was 210.5MB. Max. memory is 16.1GB. [2022-07-12 10:46:58,210 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:46:58,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1465.32ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 81.8MB in the beginning and 71.8MB in the end (delta: 10.0MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. [2022-07-12 10:46:58,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.48ms. Allocated memory is still 151.0MB. Free memory was 71.8MB in the beginning and 60.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 10:46:58,211 INFO L158 Benchmark]: Boogie Preprocessor took 94.42ms. Allocated memory is still 151.0MB. Free memory was 60.6MB in the beginning and 95.6MB in the end (delta: -35.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-07-12 10:46:58,211 INFO L158 Benchmark]: RCFGBuilder took 895.24ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 95.6MB in the beginning and 93.1MB in the end (delta: 2.5MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2022-07-12 10:46:58,211 INFO L158 Benchmark]: TraceAbstraction took 6274.73ms. Allocated memory was 230.7MB in the beginning and 276.8MB in the end (delta: 46.1MB). Free memory was 93.1MB in the beginning and 99.4MB in the end (delta: -6.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-07-12 10:46:58,212 INFO L158 Benchmark]: Witness Printer took 343.64ms. Allocated memory was 276.8MB in the beginning and 350.2MB in the end (delta: 73.4MB). Free memory was 99.4MB in the beginning and 204.9MB in the end (delta: -105.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-07-12 10:46:58,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1465.32ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 81.8MB in the beginning and 71.8MB in the end (delta: 10.0MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.48ms. Allocated memory is still 151.0MB. Free memory was 71.8MB in the beginning and 60.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.42ms. Allocated memory is still 151.0MB. Free memory was 60.6MB in the beginning and 95.6MB in the end (delta: -35.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * RCFGBuilder took 895.24ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 95.6MB in the beginning and 93.1MB in the end (delta: 2.5MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6274.73ms. Allocated memory was 230.7MB in the beginning and 276.8MB in the end (delta: 46.1MB). Free memory was 93.1MB in the beginning and 99.4MB in the end (delta: -6.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Witness Printer took 343.64ms. Allocated memory was 276.8MB in the beginning and 350.2MB in the end (delta: 73.4MB). Free memory was 99.4MB in the beginning and 204.9MB in the end (delta: -105.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 659 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 369 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 290 mSDtfsCounter, 372 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 325 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 124 PreInvPairs, 129 NumberOfFragments, 83 HoareAnnotationTreeSize, 124 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 553 ConstructedInterpolants, 0 QuantifiedInterpolants, 2306 SizeOfPredicates, 38 NumberOfNonLiveVariables, 5002 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 459/545 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 1 specifications checked. All of them hold - InvariantResult [Line: 263]: Loop Invariant [2022-07-12 10:46:58,218 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:58,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:58,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-12 10:46:58,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-12 10:46:58,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:58,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-12 10:46:58,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-12 10:46:58,219 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((\old(unknown-#memory_real-unknown) == unknown-#memory_real-unknown && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 9000]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7748]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6818]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-07-12 10:46:58,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE