./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 eb692b52 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-?-eb692b5 [2022-07-19 21:49:33,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:49:33,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:49:33,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:49:33,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:49:33,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:49:33,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:49:33,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:49:33,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:49:33,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:49:33,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:49:33,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:49:33,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:49:33,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:49:33,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:49:33,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:49:33,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:49:33,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:49:33,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:49:33,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:49:33,371 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:49:33,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:49:33,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:49:33,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:49:33,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:49:33,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:49:33,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:49:33,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:49:33,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:49:33,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:49:33,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:49:33,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:49:33,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:49:33,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:49:33,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:49:33,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:49:33,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:49:33,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:49:33,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:49:33,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:49:33,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:49:33,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:49:33,387 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 21:49:33,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:49:33,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:49:33,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:49:33,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:49:33,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:49:33,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:49:33,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:49:33,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:49:33,412 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:49:33,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:49:33,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:49:33,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:49:33,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:49:33,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:49:33,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:49:33,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:49:33,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:49:33,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:49:33,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:49:33,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:49:33,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:49:33,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:49:33,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:49:33,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:49:33,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:49:33,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:49:33,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:49:33,415 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:49:33,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:49:33,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:49:33,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8151fb171c9b453710acc6c97ec40a00d3609946ad41877389a6ccf870db18 [2022-07-19 21:49:33,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:49:33,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:49:33,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:49:33,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:49:33,578 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:49:33,579 INFO L432 ainManager$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 [2022-07-19 21:49:33,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9f0dd66/e32203d3a0694c489c79b94e25d21a11/FLAG02c90ccd8 [2022-07-19 21:49:34,173 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:49:34,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_ignore_case_harness.i [2022-07-19 21:49:34,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9f0dd66/e32203d3a0694c489c79b94e25d21a11/FLAG02c90ccd8 [2022-07-19 21:49:34,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9f0dd66/e32203d3a0694c489c79b94e25d21a11 [2022-07-19 21:49:34,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:49:34,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:49:34,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:49:34,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:49:34,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:49:34,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:49:34" (1/1) ... [2022-07-19 21:49:34,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f761b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:34, skipping insertion in model container [2022-07-19 21:49:34,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:49:34" (1/1) ... [2022-07-19 21:49:34,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:49:34,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:49:34,913 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] [2022-07-19 21:49:34,919 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] [2022-07-19 21:49:35,449 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,456 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,458 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,458 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,459 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,468 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,471 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,481 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,482 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,688 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:49:35,688 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:49:35,689 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:49:35,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:49:35,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:49:35,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:49:35,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:49:35,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:49:35,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:49:35,693 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:49:35,779 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:49:35,871 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,877 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:35,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:49:35,982 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:49:35,998 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] [2022-07-19 21:49:35,998 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] [2022-07-19 21:49:36,072 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,072 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,072 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,073 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,073 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,087 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,087 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,088 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,088 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,128 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:49:36,129 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:49:36,129 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:49:36,129 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:49:36,130 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:49:36,130 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:49:36,131 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:49:36,131 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:49:36,131 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:49:36,132 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:49:36,147 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:49:36,201 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,203 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:36,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:49:36,385 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:49:36,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36 WrapperNode [2022-07-19 21:49:36,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:49:36,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:49:36,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:49:36,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:49:36,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,550 INFO L137 Inliner]: procedures = 691, calls = 2614, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 789 [2022-07-19 21:49:36,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:49:36,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:49:36,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:49:36,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:49:36,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:49:36,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:49:36,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:49:36,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:49:36,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (1/1) ... [2022-07-19 21:49:36,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:49:36,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:49:36,675 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) [2022-07-19 21:49:36,692 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 [2022-07-19 21:49:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:49:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-19 21:49:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-19 21:49:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:49:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 21:49:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 21:49:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 21:49:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:49:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-07-19 21:49:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-07-19 21:49:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:49:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:49:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-19 21:49:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-19 21:49:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-19 21:49:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-19 21:49:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-19 21:49:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-19 21:49:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 21:49:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 21:49:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:49:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 21:49:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-19 21:49:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-19 21:49:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:49:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str_ignore_case [2022-07-19 21:49:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str_ignore_case [2022-07-19 21:49:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:49:36,951 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:49:36,953 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:49:37,633 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:49:37,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:49:37,638 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 21:49:37,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:49:37 BoogieIcfgContainer [2022-07-19 21:49:37,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:49:37,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:49:37,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:49:37,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:49:37,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:49:34" (1/3) ... [2022-07-19 21:49:37,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0f3896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:49:37, skipping insertion in model container [2022-07-19 21:49:37,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:36" (2/3) ... [2022-07-19 21:49:37,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0f3896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:49:37, skipping insertion in model container [2022-07-19 21:49:37,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:49:37" (3/3) ... [2022-07-19 21:49:37,646 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_ignore_case_harness.i [2022-07-19 21:49:37,656 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:49:37,656 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 21:49:37,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:49:37,708 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@770ba2f1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c31dcab [2022-07-19 21:49:37,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 21:49:37,711 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) [2022-07-19 21:49:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 21:49:37,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:49:37,720 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] [2022-07-19 21:49:37,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:49:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:49:37,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1470812839, now seen corresponding path program 1 times [2022-07-19 21:49:37,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:49:37,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399160208] [2022-07-19 21:49:37,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:37,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:49:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:49:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 21:49:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 21:49:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 21:49:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 21:49:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 21:49:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 21:49:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 21:49:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:49:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-19 21:49:38,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:49:38,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399160208] [2022-07-19 21:49:38,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399160208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:49:38,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:49:38,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 21:49:38,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594865480] [2022-07-19 21:49:38,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:49:38,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 21:49:38,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:49:38,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 21:49:38,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 21:49:38,266 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) [2022-07-19 21:49:38,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:49:38,494 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2022-07-19 21:49:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 21:49:38,496 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 [2022-07-19 21:49:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:49:38,503 INFO L225 Difference]: With dead ends: 176 [2022-07-19 21:49:38,503 INFO L226 Difference]: Without dead ends: 87 [2022-07-19 21:49:38,506 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 [2022-07-19 21:49:38,508 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 82 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-19 21:49:38,509 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] [2022-07-19 21:49:38,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-19 21:49:38,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2022-07-19 21:49:38,538 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) [2022-07-19 21:49:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2022-07-19 21:49:38,541 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 104 transitions. Word has length 68 [2022-07-19 21:49:38,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:49:38,541 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 104 transitions. [2022-07-19 21:49:38,542 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) [2022-07-19 21:49:38,542 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2022-07-19 21:49:38,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 21:49:38,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:49:38,544 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] [2022-07-19 21:49:38,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:49:38,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:49:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:49:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1466791209, now seen corresponding path program 1 times [2022-07-19 21:49:38,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:49:38,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119310877] [2022-07-19 21:49:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:38,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:49:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:49:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 21:49:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 21:49:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 21:49:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 21:49:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 21:49:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 21:49:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 21:49:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:49:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:38,798 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-19 21:49:38,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:49:38,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119310877] [2022-07-19 21:49:38,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119310877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:49:38,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:49:38,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:49:38,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729523339] [2022-07-19 21:49:38,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:49:38,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:49:38,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:49:38,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:49:38,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:49:38,802 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) [2022-07-19 21:49:39,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:49:39,116 INFO L93 Difference]: Finished difference Result 146 states and 193 transitions. [2022-07-19 21:49:39,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 21:49:39,116 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 [2022-07-19 21:49:39,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:49:39,118 INFO L225 Difference]: With dead ends: 146 [2022-07-19 21:49:39,118 INFO L226 Difference]: Without dead ends: 101 [2022-07-19 21:49:39,119 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 [2022-07-19 21:49:39,119 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 [2022-07-19 21:49:39,120 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] [2022-07-19 21:49:39,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-19 21:49:39,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 85. [2022-07-19 21:49:39,128 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) [2022-07-19 21:49:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 108 transitions. [2022-07-19 21:49:39,129 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 108 transitions. Word has length 68 [2022-07-19 21:49:39,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:49:39,129 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 108 transitions. [2022-07-19 21:49:39,129 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) [2022-07-19 21:49:39,129 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 108 transitions. [2022-07-19 21:49:39,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 21:49:39,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:49:39,131 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] [2022-07-19 21:49:39,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 21:49:39,131 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:49:39,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:49:39,131 INFO L85 PathProgramCache]: Analyzing trace with hash 982808921, now seen corresponding path program 1 times [2022-07-19 21:49:39,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:49:39,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731415674] [2022-07-19 21:49:39,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:39,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:49:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:49:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 21:49:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 21:49:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 21:49:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 21:49:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 21:49:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 21:49:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 21:49:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:49:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-19 21:49:39,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:49:39,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731415674] [2022-07-19 21:49:39,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731415674] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:49:39,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770161216] [2022-07-19 21:49:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:39,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:49:39,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:49:39,559 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) [2022-07-19 21:49:39,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 21:49:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:39,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-19 21:49:39,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:49:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-19 21:49:40,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:49:40,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770161216] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:49:40,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:49:40,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-07-19 21:49:40,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233068041] [2022-07-19 21:49:40,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:49:40,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 21:49:40,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:49:40,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 21:49:40,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-19 21:49:40,029 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) [2022-07-19 21:49:40,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:49:40,127 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2022-07-19 21:49:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 21:49:40,128 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 [2022-07-19 21:49:40,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:49:40,129 INFO L225 Difference]: With dead ends: 123 [2022-07-19 21:49:40,129 INFO L226 Difference]: Without dead ends: 82 [2022-07-19 21:49:40,130 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 [2022-07-19 21:49:40,130 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 21:49:40,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 347 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 21:49:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-07-19 21:49:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-07-19 21:49:40,136 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) [2022-07-19 21:49:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 102 transitions. [2022-07-19 21:49:40,137 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 102 transitions. Word has length 68 [2022-07-19 21:49:40,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:49:40,138 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 102 transitions. [2022-07-19 21:49:40,138 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) [2022-07-19 21:49:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 102 transitions. [2022-07-19 21:49:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 21:49:40,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:49:40,139 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] [2022-07-19 21:49:40,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 21:49:40,356 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 [2022-07-19 21:49:40,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:49:40,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:49:40,357 INFO L85 PathProgramCache]: Analyzing trace with hash -578368298, now seen corresponding path program 1 times [2022-07-19 21:49:40,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:49:40,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773567277] [2022-07-19 21:49:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:40,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:49:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:40,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:49:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 21:49:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:40,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:40,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 21:49:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 21:49:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:40,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 21:49:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-19 21:49:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 21:49:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 21:49:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 21:49:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 21:49:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 21:49:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 21:49:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 21:49:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:49:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-19 21:49:41,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:49:41,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773567277] [2022-07-19 21:49:41,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773567277] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:49:41,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549252985] [2022-07-19 21:49:41,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:41,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:49:41,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:49:41,224 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) [2022-07-19 21:49:41,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 21:49:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:41,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 81 conjunts are in the unsatisfiable core [2022-07-19 21:49:41,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:49:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-19 21:49:42,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 21:49:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-19 21:49:43,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549252985] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 21:49:43,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 21:49:43,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 28, 15] total 56 [2022-07-19 21:49:43,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235086416] [2022-07-19 21:49:43,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 21:49:43,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-07-19 21:49:43,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:49:43,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-07-19 21:49:43,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2022-07-19 21:49:43,882 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) [2022-07-19 21:49:43,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:49:43,884 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2022-07-19 21:49:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 21:49:43,885 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 [2022-07-19 21:49:43,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:49:43,885 INFO L225 Difference]: With dead ends: 82 [2022-07-19 21:49:43,885 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 21:49:43,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2022-07-19 21:49:43,889 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 [2022-07-19 21:49:43,890 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] [2022-07-19 21:49:43,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 21:49:43,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 21:49:43,891 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) [2022-07-19 21:49:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 21:49:43,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2022-07-19 21:49:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:49:43,892 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 21:49:43,892 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) [2022-07-19 21:49:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 21:49:43,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 21:49:43,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 21:49:43,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 21:49:44,114 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 [2022-07-19 21:49:44,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 21:49:44,167 INFO L902 garLoopResultBuilder]: At program point can_fail_mallocENTRY(lines 6899 6903) the Hoare annotation is: true [2022-07-19 21:49:44,167 INFO L899 garLoopResultBuilder]: For program point L6900-3(lines 6900 6902) no Hoare annotation was computed. [2022-07-19 21:49:44,168 INFO L902 garLoopResultBuilder]: At program point L6902(line 6902) the Hoare annotation is: true [2022-07-19 21:49:44,168 INFO L899 garLoopResultBuilder]: For program point can_fail_mallocFINAL(lines 6899 6903) no Hoare annotation was computed. [2022-07-19 21:49:44,168 INFO L899 garLoopResultBuilder]: For program point L6900-1(lines 6900 6902) no Hoare annotation was computed. [2022-07-19 21:49:44,168 INFO L899 garLoopResultBuilder]: For program point can_fail_mallocEXIT(lines 6899 6903) no Hoare annotation was computed. [2022-07-19 21:49:44,169 INFO L902 garLoopResultBuilder]: At program point L6900(line 6900) the Hoare annotation is: true [2022-07-19 21:49:44,169 INFO L899 garLoopResultBuilder]: For program point L6902-1(line 6902) no Hoare annotation was computed. [2022-07-19 21:49:44,169 INFO L902 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2022-07-19 21:49:44,169 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2022-07-19 21:49:44,169 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-07-19 21:49:44,170 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-07-19 21:49:44,170 INFO L902 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: true [2022-07-19 21:49:44,170 INFO L899 garLoopResultBuilder]: For program point L7135(lines 7135 7139) no Hoare annotation was computed. [2022-07-19 21:49:44,170 INFO L899 garLoopResultBuilder]: For program point L7137-1(line 7137) no Hoare annotation was computed. [2022-07-19 21:49:44,171 INFO L899 garLoopResultBuilder]: For program point save_byte_from_arrayEXIT(lines 7134 7140) no Hoare annotation was computed. [2022-07-19 21:49:44,171 INFO L902 garLoopResultBuilder]: At program point L7137(line 7137) the Hoare annotation is: true [2022-07-19 21:49:44,171 INFO L899 garLoopResultBuilder]: For program point L7135-2(lines 7134 7140) no Hoare annotation was computed. [2022-07-19 21:49:44,171 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)|)) [2022-07-19 21:49:44,171 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)|)) [2022-07-19 21:49:44,171 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-19 21:49:44,171 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-19 21:49:44,171 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-19 21:49:44,172 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseEXIT(lines 7731 7764) no Hoare annotation was computed. [2022-07-19 21:49:44,172 INFO L899 garLoopResultBuilder]: For program point L7748-4(lines 7748 7761) no Hoare annotation was computed. [2022-07-19 21:49:44,172 INFO L902 garLoopResultBuilder]: At program point aws_array_eq_c_str_ignore_caseENTRY(lines 7731 7764) the Hoare annotation is: true [2022-07-19 21:49:44,172 INFO L902 garLoopResultBuilder]: At program point L7748-3(lines 7748 7761) the Hoare annotation is: true [2022-07-19 21:49:44,172 INFO L899 garLoopResultBuilder]: For program point L7736(lines 7736 7738) no Hoare annotation was computed. [2022-07-19 21:49:44,172 INFO L902 garLoopResultBuilder]: At program point L7733-1(line 7733) the Hoare annotation is: true [2022-07-19 21:49:44,172 INFO L902 garLoopResultBuilder]: At program point L7733(line 7733) the Hoare annotation is: true [2022-07-19 21:49:44,172 INFO L899 garLoopResultBuilder]: For program point L7756(lines 7756 7760) no Hoare annotation was computed. [2022-07-19 21:49:44,173 INFO L899 garLoopResultBuilder]: For program point L7750(lines 7750 7754) no Hoare annotation was computed. [2022-07-19 21:49:44,173 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseFINAL(lines 7731 7764) no Hoare annotation was computed. [2022-07-19 21:49:44,173 INFO L899 garLoopResultBuilder]: For program point L7748-2(lines 7748 7761) no Hoare annotation was computed. [2022-07-19 21:49:44,173 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-19 21:49:44,173 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-19 21:49:44,173 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-19 21:49:44,173 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-19 21:49:44,173 INFO L902 garLoopResultBuilder]: At program point L7130(line 7130) the Hoare annotation is: true [2022-07-19 21:49:44,173 INFO L899 garLoopResultBuilder]: For program point assert_byte_from_buffer_matchesEXIT(lines 7128 7132) no Hoare annotation was computed. [2022-07-19 21:49:44,174 INFO L902 garLoopResultBuilder]: At program point assert_byte_from_buffer_matchesENTRY(lines 7128 7132) the Hoare annotation is: true [2022-07-19 21:49:44,174 INFO L899 garLoopResultBuilder]: For program point L7129-2(lines 7128 7132) no Hoare annotation was computed. [2022-07-19 21:49:44,176 INFO L899 garLoopResultBuilder]: For program point L7129(lines 7129 7131) no Hoare annotation was computed. [2022-07-19 21:49:44,176 INFO L899 garLoopResultBuilder]: For program point L7130-1(line 7130) no Hoare annotation was computed. [2022-07-19 21:49:44,176 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-19 21:49:44,176 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-19 21:49:44,176 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-19 21:49:44,177 INFO L899 garLoopResultBuilder]: For program point L8979-1(line 8979) no Hoare annotation was computed. [2022-07-19 21:49:44,177 INFO L899 garLoopResultBuilder]: For program point L8971(line 8971) no Hoare annotation was computed. [2022-07-19 21:49:44,177 INFO L899 garLoopResultBuilder]: For program point L8996(lines 8996 8998) no Hoare annotation was computed. [2022-07-19 21:49:44,177 INFO L895 garLoopResultBuilder]: At program point L6820-1(line 6820) the Hoare annotation is: false [2022-07-19 21:49:44,177 INFO L902 garLoopResultBuilder]: At program point L9000(line 9000) the Hoare annotation is: true [2022-07-19 21:49:44,177 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: false [2022-07-19 21:49:44,177 INFO L899 garLoopResultBuilder]: For program point L8967(lines 8967 8999) no Hoare annotation was computed. [2022-07-19 21:49:44,177 INFO L899 garLoopResultBuilder]: For program point L8988(lines 8988 8990) no Hoare annotation was computed. [2022-07-19 21:49:44,177 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 21:49:44,178 INFO L899 garLoopResultBuilder]: For program point L8988-1(lines 8967 8999) no Hoare annotation was computed. [2022-07-19 21:49:44,178 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 21:49:44,178 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 21:49:44,178 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)) [2022-07-19 21:49:44,178 INFO L895 garLoopResultBuilder]: At program point L8972(line 8972) the Hoare annotation is: false [2022-07-19 21:49:44,178 INFO L899 garLoopResultBuilder]: For program point L8972-1(lines 8972 8974) no Hoare annotation was computed. [2022-07-19 21:49:44,178 INFO L895 garLoopResultBuilder]: At program point L8997(line 8997) the Hoare annotation is: false [2022-07-19 21:49:44,178 INFO L899 garLoopResultBuilder]: For program point L6825-1(line 6825) no Hoare annotation was computed. [2022-07-19 21:49:44,179 INFO L895 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2022-07-19 21:49:44,179 INFO L899 garLoopResultBuilder]: For program point L8972-3(lines 8972 8974) no Hoare annotation was computed. [2022-07-19 21:49:44,179 INFO L899 garLoopResultBuilder]: For program point L6821(line 6821) no Hoare annotation was computed. [2022-07-19 21:49:44,179 INFO L895 garLoopResultBuilder]: At program point L8989(line 8989) the Hoare annotation is: false [2022-07-19 21:49:44,179 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 21:49:44,180 INFO L899 garLoopResultBuilder]: For program point L8993(lines 8967 8999) no Hoare annotation was computed. [2022-07-19 21:49:44,180 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)) [2022-07-19 21:49:44,180 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)) [2022-07-19 21:49:44,180 INFO L895 garLoopResultBuilder]: At program point L8985(line 8985) the Hoare annotation is: false [2022-07-19 21:49:44,180 INFO L895 garLoopResultBuilder]: At program point L6826(lines 6818 6827) the Hoare annotation is: false [2022-07-19 21:49:44,180 INFO L895 garLoopResultBuilder]: At program point L8994(line 8994) the Hoare annotation is: false [2022-07-19 21:49:44,180 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)) [2022-07-19 21:49:44,180 INFO L895 garLoopResultBuilder]: At program point L8970(line 8970) the Hoare annotation is: false [2022-07-19 21:49:44,181 INFO L899 garLoopResultBuilder]: For program point L8978-1(lines 8967 8999) no Hoare annotation was computed. [2022-07-19 21:49:44,181 INFO L895 garLoopResultBuilder]: At program point L8970-1(line 8970) the Hoare annotation is: false [2022-07-19 21:49:44,181 INFO L899 garLoopResultBuilder]: For program point L6819-1(line 6819) no Hoare annotation was computed. [2022-07-19 21:49:44,181 INFO L895 garLoopResultBuilder]: At program point L6819(line 6819) the Hoare annotation is: false [2022-07-19 21:49:44,181 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-19 21:49:44,181 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-19 21:49:44,181 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-19 21:49:44,181 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-19 21:49:44,182 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-19 21:49:44,182 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-19 21:49:44,184 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-19 21:49:44,185 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 21:49:44,191 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,191 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,191 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-19 21:49:44,192 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-19 21:49:44,195 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,195 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,195 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-19 21:49:44,195 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-19 21:49:44,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:49:44 BoogieIcfgContainer [2022-07-19 21:49:44,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 21:49:44,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 21:49:44,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 21:49:44,199 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 21:49:44,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:49:37" (3/4) ... [2022-07-19 21:49:44,201 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 21:49:44,205 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_malloc [2022-07-19 21:49:44,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-19 21:49:44,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure save_byte_from_array [2022-07-19 21:49:44,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-19 21:49:44,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-19 21:49:44,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str_ignore_case [2022-07-19 21:49:44,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-19 21:49:44,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-19 21:49:44,207 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2022-07-19 21:49:44,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 124 nodes and edges [2022-07-19 21:49:44,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-07-19 21:49:44,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-07-19 21:49:44,218 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-19 21:49:44,218 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-19 21:49:44,219 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-19 21:49:44,220 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 21:49:44,220 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 21:49:44,240 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_$Pointer$) [2022-07-19 21:49:44,559 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 21:49:44,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 21:49:44,560 INFO L158 Benchmark]: Toolchain (without parser) took 9953.90ms. Allocated memory was 125.8MB in the beginning and 314.6MB in the end (delta: 188.7MB). Free memory was 86.3MB in the beginning and 187.3MB in the end (delta: -101.1MB). Peak memory consumption was 225.0MB. Max. memory is 16.1GB. [2022-07-19 21:49:44,560 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 44.0MB in the beginning and 44.0MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:49:44,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1778.16ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 86.0MB in the beginning and 75.4MB in the end (delta: 10.6MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2022-07-19 21:49:44,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.28ms. Allocated memory is still 174.1MB. Free memory was 75.4MB in the beginning and 117.3MB in the end (delta: -41.8MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-07-19 21:49:44,562 INFO L158 Benchmark]: Boogie Preprocessor took 85.98ms. Allocated memory is still 174.1MB. Free memory was 117.3MB in the beginning and 111.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 21:49:44,564 INFO L158 Benchmark]: RCFGBuilder took 998.35ms. Allocated memory is still 174.1MB. Free memory was 111.0MB in the beginning and 98.7MB in the end (delta: 12.2MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2022-07-19 21:49:44,565 INFO L158 Benchmark]: TraceAbstraction took 6556.45ms. Allocated memory was 174.1MB in the beginning and 314.6MB in the end (delta: 140.5MB). Free memory was 98.7MB in the beginning and 126.5MB in the end (delta: -27.8MB). Peak memory consumption was 112.8MB. Max. memory is 16.1GB. [2022-07-19 21:49:44,565 INFO L158 Benchmark]: Witness Printer took 361.01ms. Allocated memory is still 314.6MB. Free memory was 126.5MB in the beginning and 187.3MB in the end (delta: -60.8MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-07-19 21:49:44,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory was 44.0MB in the beginning and 44.0MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1778.16ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 86.0MB in the beginning and 75.4MB in the end (delta: 10.6MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 168.28ms. Allocated memory is still 174.1MB. Free memory was 75.4MB in the beginning and 117.3MB in the end (delta: -41.8MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.98ms. Allocated memory is still 174.1MB. Free memory was 117.3MB in the beginning and 111.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 998.35ms. Allocated memory is still 174.1MB. Free memory was 111.0MB in the beginning and 98.7MB in the end (delta: 12.2MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6556.45ms. Allocated memory was 174.1MB in the beginning and 314.6MB in the end (delta: 140.5MB). Free memory was 98.7MB in the beginning and 126.5MB in the end (delta: -27.8MB). Peak memory consumption was 112.8MB. Max. memory is 16.1GB. * Witness Printer took 361.01ms. Allocated memory is still 314.6MB. Free memory was 126.5MB in the beginning and 187.3MB in the end (delta: -60.8MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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: 6.5s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, 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, 1.5s 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, 1.0s SatisfiabilityAnalysisTime, 3.7s 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 [2022-07-19 21:49:44,573 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,573 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,573 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-19 21:49:44,574 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-19 21:49:44,574 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,574 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-07-19 21:49:44,574 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-07-19 21:49:44,574 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! [2022-07-19 21:49:44,620 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