./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_string_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 6334acf6662f715682aa436867bb49f37f46bbf05c989a8d5c50953f6022f7ef --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:52:33,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:52:33,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:52:33,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:52:33,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:52:33,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:52:33,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:52:33,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:52:33,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:52:33,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:52:33,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:52:33,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:52:33,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:52:33,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:52:33,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:52:33,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:52:33,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:52:33,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:52:33,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:52:33,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:52:33,813 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:52:33,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:52:33,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:52:33,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:52:33,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:52:33,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:52:33,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:52:33,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:52:33,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:52:33,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:52:33,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:52:33,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:52:33,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:52:33,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:52:33,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:52:33,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:52:33,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:52:33,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:52:33,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:52:33,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:52:33,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:52:33,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:52:33,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:52:33,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:52:33,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:52:33,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:52:33,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:52:33,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:52:33,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:52:33,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:52:33,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:52:33,846 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:52:33,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:52:33,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:52:33,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:52:33,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:52:33,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:52:33,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:52:33,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:52:33,847 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:52:33,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:52:33,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:52:33,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:52:33,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:52:33,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:52:33,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:52:33,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:52:33,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:52:33,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:52:33,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:52:33,849 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:52:33,850 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:52:33,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:52:33,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6334acf6662f715682aa436867bb49f37f46bbf05c989a8d5c50953f6022f7ef [2022-07-21 09:52:34,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:52:34,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:52:34,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:52:34,160 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:52:34,161 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:52:34,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i [2022-07-21 09:52:34,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7913a68e/587c8bb70a264aa2aa3dfe72a6ac19de/FLAGbcda4dfaa [2022-07-21 09:52:34,810 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:52:34,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_ignore_case_harness.i [2022-07-21 09:52:34,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7913a68e/587c8bb70a264aa2aa3dfe72a6ac19de/FLAGbcda4dfaa [2022-07-21 09:52:35,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7913a68e/587c8bb70a264aa2aa3dfe72a6ac19de [2022-07-21 09:52:35,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:52:35,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:52:35,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:52:35,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:52:35,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:52:35,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:52:35" (1/1) ... [2022-07-21 09:52:35,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a95552c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:35, skipping insertion in model container [2022-07-21 09:52:35,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:52:35" (1/1) ... [2022-07-21 09:52:35,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:52:35,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:52:35,444 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_string_eq_c_str_ignore_case_harness.i[4505,4518] [2022-07-21 09:52:35,450 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_string_eq_c_str_ignore_case_harness.i[4565,4578] [2022-07-21 09:52:36,136 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,139 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,139 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,140 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,141 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,148 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,148 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,150 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,151 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,371 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:52:36,372 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:52:36,372 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:52:36,373 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:52:36,374 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:52:36,374 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:52:36,375 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:52:36,375 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:52:36,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:52:36,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:52:36,455 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:52:36,516 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,516 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:52:36,553 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:52:36,561 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_string_eq_c_str_ignore_case_harness.i[4505,4518] [2022-07-21 09:52:36,562 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_string_eq_c_str_ignore_case_harness.i[4565,4578] [2022-07-21 09:52:36,580 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,581 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,581 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,581 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,582 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,585 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,586 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,586 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,587 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,624 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:52:36,625 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:52:36,626 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:52:36,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:52:36,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:52:36,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:52:36,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:52:36,633 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:52:36,633 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:52:36,635 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:52:36,650 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:52:36,684 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,684 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:52:36,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:52:36,842 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:52:36,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36 WrapperNode [2022-07-21 09:52:36,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:52:36,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:52:36,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:52:36,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:52:36,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:36,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:36,979 INFO L137 Inliner]: procedures = 681, calls = 2270, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 374 [2022-07-21 09:52:36,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:52:36,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:52:36,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:52:36,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:52:36,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:36,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:37,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:37,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:37,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:37,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:37,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:37,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:52:37,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:52:37,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:52:37,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:52:37,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (1/1) ... [2022-07-21 09:52:37,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:52:37,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:52:37,068 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) [2022-07-21 09:52:37,106 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 [2022-07-21 09:52:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-07-21 09:52:37,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-07-21 09:52:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-07-21 09:52:37,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-07-21 09:52:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-21 09:52:37,118 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-21 09:52:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:52:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 09:52:37,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 09:52:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:52:37,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:52:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 09:52:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:52:37,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:52:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-21 09:52:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-21 09:52:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 09:52:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 09:52:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:52:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-21 09:52:37,122 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-21 09:52:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-21 09:52:37,122 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-21 09:52:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:52:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str_ignore_case [2022-07-21 09:52:37,122 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str_ignore_case [2022-07-21 09:52:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:52:37,352 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:52:37,354 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:52:37,665 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:52:37,672 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:52:37,673 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 09:52:37,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:52:37 BoogieIcfgContainer [2022-07-21 09:52:37,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:52:37,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:52:37,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:52:37,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:52:37,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:52:35" (1/3) ... [2022-07-21 09:52:37,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605990ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:52:37, skipping insertion in model container [2022-07-21 09:52:37,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:52:36" (2/3) ... [2022-07-21 09:52:37,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605990ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:52:37, skipping insertion in model container [2022-07-21 09:52:37,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:52:37" (3/3) ... [2022-07-21 09:52:37,682 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_ignore_case_harness.i [2022-07-21 09:52:37,692 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:52:37,692 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:52:37,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:52:37,736 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@56baa317, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@524b36dc [2022-07-21 09:52:37,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 09:52:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 66 states have internal predecessors, (81), 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) [2022-07-21 09:52:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 09:52:37,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:52:37,748 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 09:52:37,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:52:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:52:37,752 INFO L85 PathProgramCache]: Analyzing trace with hash -710220105, now seen corresponding path program 1 times [2022-07-21 09:52:37,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:52:37,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462475852] [2022-07-21 09:52:37,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:52:37,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:52:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:52:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 09:52:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 09:52:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 09:52:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 09:52:38,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:52:38,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462475852] [2022-07-21 09:52:38,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462475852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:52:38,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:52:38,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 09:52:38,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881040667] [2022-07-21 09:52:38,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:52:38,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 09:52:38,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:52:38,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 09:52:38,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 09:52:38,153 INFO L87 Difference]: Start difference. First operand has 98 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 66 states have internal predecessors, (81), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 09:52:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:52:38,190 INFO L93 Difference]: Finished difference Result 187 states and 250 transitions. [2022-07-21 09:52:38,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 09:52:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-07-21 09:52:38,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:52:38,199 INFO L225 Difference]: With dead ends: 187 [2022-07-21 09:52:38,199 INFO L226 Difference]: Without dead ends: 93 [2022-07-21 09:52:38,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 09:52:38,209 INFO L413 NwaCegarLoop]: 122 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, 122 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 [2022-07-21 09:52:38,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:52:38,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-21 09:52:38,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-21 09:52:38,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 62 states have internal predecessors, (73), 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) [2022-07-21 09:52:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2022-07-21 09:52:38,247 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 116 transitions. Word has length 36 [2022-07-21 09:52:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:52:38,249 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 116 transitions. [2022-07-21 09:52:38,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 09:52:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 116 transitions. [2022-07-21 09:52:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 09:52:38,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:52:38,254 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 09:52:38,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:52:38,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:52:38,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:52:38,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1895803449, now seen corresponding path program 1 times [2022-07-21 09:52:38,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:52:38,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313469781] [2022-07-21 09:52:38,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:52:38,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:52:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:52:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 09:52:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 09:52:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 09:52:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 09:52:38,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:52:38,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313469781] [2022-07-21 09:52:38,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313469781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:52:38,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:52:38,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:52:38,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971064326] [2022-07-21 09:52:38,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:52:38,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:52:38,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:52:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:52:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:52:38,453 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-21 09:52:38,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:52:38,501 INFO L93 Difference]: Finished difference Result 136 states and 174 transitions. [2022-07-21 09:52:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 09:52:38,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2022-07-21 09:52:38,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:52:38,503 INFO L225 Difference]: With dead ends: 136 [2022-07-21 09:52:38,504 INFO L226 Difference]: Without dead ends: 93 [2022-07-21 09:52:38,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:52:38,507 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 11 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:52:38,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 351 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:52:38,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-21 09:52:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-21 09:52:38,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 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) [2022-07-21 09:52:38,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2022-07-21 09:52:38,523 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 36 [2022-07-21 09:52:38,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:52:38,523 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2022-07-21 09:52:38,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-21 09:52:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2022-07-21 09:52:38,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 09:52:38,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:52:38,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:52:38,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 09:52:38,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:52:38,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:52:38,531 INFO L85 PathProgramCache]: Analyzing trace with hash -267916698, now seen corresponding path program 1 times [2022-07-21 09:52:38,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:52:38,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324409401] [2022-07-21 09:52:38,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:52:38,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:52:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:52:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:52:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:52:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:52:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:52:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:52:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:52:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 09:52:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:52:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 09:52:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 09:52:39,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:52:39,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324409401] [2022-07-21 09:52:39,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324409401] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:52:39,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67115946] [2022-07-21 09:52:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:52:39,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:52:39,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:52:39,190 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) [2022-07-21 09:52:39,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 09:52:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:39,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 09:52:39,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:52:39,529 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 09:52:39,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:52:39,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67115946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:52:39,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:52:39,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 22 [2022-07-21 09:52:39,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665747378] [2022-07-21 09:52:39,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:52:39,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 09:52:39,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:52:39,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 09:52:39,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2022-07-21 09:52:39,535 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-21 09:52:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:52:39,698 INFO L93 Difference]: Finished difference Result 115 states and 140 transitions. [2022-07-21 09:52:39,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:52:39,699 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 70 [2022-07-21 09:52:39,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:52:39,702 INFO L225 Difference]: With dead ends: 115 [2022-07-21 09:52:39,702 INFO L226 Difference]: Without dead ends: 93 [2022-07-21 09:52:39,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-07-21 09:52:39,704 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 38 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:52:39,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 943 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:52:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-21 09:52:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-21 09:52:39,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 62 states have internal predecessors, (71), 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) [2022-07-21 09:52:39,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2022-07-21 09:52:39,716 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 70 [2022-07-21 09:52:39,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:52:39,716 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2022-07-21 09:52:39,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-21 09:52:39,716 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2022-07-21 09:52:39,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 09:52:39,717 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:52:39,717 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:52:39,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 09:52:39,935 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 [2022-07-21 09:52:39,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:52:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:52:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1941590924, now seen corresponding path program 1 times [2022-07-21 09:52:39,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:52:39,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337259026] [2022-07-21 09:52:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:52:39,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:52:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:52:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:52:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:52:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:52:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:52:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:52:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:52:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 09:52:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:52:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:52:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,080 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 09:52:40,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:52:40,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337259026] [2022-07-21 09:52:40,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337259026] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:52:40,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:52:40,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 09:52:40,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529330835] [2022-07-21 09:52:40,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:52:40,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:52:40,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:52:40,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:52:40,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:52:40,083 INFO L87 Difference]: Start difference. First operand 93 states and 114 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 09:52:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:52:40,268 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2022-07-21 09:52:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:52:40,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 71 [2022-07-21 09:52:40,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:52:40,272 INFO L225 Difference]: With dead ends: 125 [2022-07-21 09:52:40,272 INFO L226 Difference]: Without dead ends: 93 [2022-07-21 09:52:40,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:52:40,274 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 78 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:52:40,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 246 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:52:40,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-21 09:52:40,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-21 09:52:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 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) [2022-07-21 09:52:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2022-07-21 09:52:40,288 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 71 [2022-07-21 09:52:40,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:52:40,289 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2022-07-21 09:52:40,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 09:52:40,289 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2022-07-21 09:52:40,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 09:52:40,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:52:40,291 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 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] [2022-07-21 09:52:40,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:52:40,293 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:52:40,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:52:40,293 INFO L85 PathProgramCache]: Analyzing trace with hash -156781124, now seen corresponding path program 1 times [2022-07-21 09:52:40,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:52:40,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433905468] [2022-07-21 09:52:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:52:40,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:52:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:52:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:52:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:52:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:52:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:52:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:52:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:52:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 09:52:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 09:52:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 09:52:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 09:52:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:52:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 09:52:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 09:52:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 09:52:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-21 09:52:40,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:52:40,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433905468] [2022-07-21 09:52:40,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433905468] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:52:40,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712071522] [2022-07-21 09:52:40,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:52:40,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:52:40,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:52:40,834 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) [2022-07-21 09:52:40,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 09:52:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:52:41,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 09:52:41,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:52:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-21 09:52:41,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:52:41,327 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-21 09:52:41,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712071522] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:52:41,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 09:52:41,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11, 11] total 27 [2022-07-21 09:52:41,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949756331] [2022-07-21 09:52:41,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 09:52:41,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-21 09:52:41,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:52:41,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-21 09:52:41,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2022-07-21 09:52:41,332 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) [2022-07-21 09:52:41,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:52:41,843 INFO L93 Difference]: Finished difference Result 108 states and 125 transitions. [2022-07-21 09:52:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 09:52:41,844 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) Word has length 99 [2022-07-21 09:52:41,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:52:41,844 INFO L225 Difference]: With dead ends: 108 [2022-07-21 09:52:41,844 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 09:52:41,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=1336, Unknown=0, NotChecked=0, Total=1482 [2022-07-21 09:52:41,847 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:52:41,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 275 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:52:41,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 09:52:41,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 09:52:41,848 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) [2022-07-21 09:52:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 09:52:41,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2022-07-21 09:52:41,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:52:41,848 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 09:52:41,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) [2022-07-21 09:52:41,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 09:52:41,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 09:52:41,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 09:52:41,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 09:52:42,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:52:42,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 09:52:42,282 INFO L895 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-07-21 09:52:42,282 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2022-07-21 09:52:42,282 INFO L899 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2022-07-21 09:52:42,282 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-07-21 09:52:42,282 INFO L899 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2022-07-21 09:52:42,282 INFO L899 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2022-07-21 09:52:42,282 INFO L895 garLoopResultBuilder]: At program point L6808(line 6808) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (and (or (<= 0 (+ (* 18446744073709551616 (div (+ (* (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 15) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|)) .cse0) (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or .cse0 (let ((.cse1 (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (<= .cse1 (+ |ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ .cse1 15 (* (- 1) |ensure_string_is_allocated_bounded_length_~len~1#1|)) 18446744073709551616)))))) (= |old(#valid)| |#valid|))) [2022-07-21 09:52:42,282 INFO L899 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2022-07-21 09:52:42,282 INFO L895 garLoopResultBuilder]: At program point L6811-2(line 6811) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-07-21 09:52:42,282 INFO L895 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-21 09:52:42,282 INFO L899 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L895 garLoopResultBuilder]: At program point L6803(line 6803) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ (- 16) |ensure_string_is_allocated_bounded_length_~max_size#1|) 0)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-21 09:52:42,283 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6801 6805) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6801 6805) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6883 6888) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6883 6888) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L895 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseEXIT(lines 8042 8075) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L902 garLoopResultBuilder]: At program point aws_array_eq_c_str_ignore_caseENTRY(lines 8042 8075) the Hoare annotation is: true [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point L8061(lines 8061 8065) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point L8059-4(lines 8059 8072) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L902 garLoopResultBuilder]: At program point L8059-3(lines 8059 8072) the Hoare annotation is: true [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point L8059-2(lines 8059 8072) no Hoare annotation was computed. [2022-07-21 09:52:42,283 INFO L899 garLoopResultBuilder]: For program point L8047(lines 8047 8049) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L902 garLoopResultBuilder]: At program point L8044-1(line 8044) the Hoare annotation is: true [2022-07-21 09:52:42,284 INFO L902 garLoopResultBuilder]: At program point L8044(line 8044) the Hoare annotation is: true [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_str_ignore_caseFINAL(lines 8042 8075) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point L8067(lines 8067 8071) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6890 6892) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6890 6892) the Hoare annotation is: true [2022-07-21 09:52:42,284 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-21 09:52:42,284 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-21 09:52:42,284 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L7608(lines 7608 7616) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L8921(line 8921) the Hoare annotation is: false [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L8921-1(line 8921) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L7617(lines 7617 7625) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L8918(lines 8918 8922) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L7626(line 7626) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L7626-2(lines 7605 7627) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L7626-1(line 7626) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L6821-1(line 6821) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L6821(line 6821) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2022-07-21 09:52:42,285 INFO L899 garLoopResultBuilder]: For program point L8919-2(line 8919) no Hoare annotation was computed. [2022-07-21 09:52:42,285 INFO L895 garLoopResultBuilder]: At program point L8915(line 8915) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L8915-1(lines 8915 8916) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L895 garLoopResultBuilder]: At program point L8919(line 8919) the Hoare annotation is: false [2022-07-21 09:52:42,286 INFO L895 garLoopResultBuilder]: At program point L8919-1(line 8919) the Hoare annotation is: false [2022-07-21 09:52:42,286 INFO L895 garLoopResultBuilder]: At program point L6826(line 6826) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L8915-3(lines 8915 8916) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L8911(lines 8911 8923) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L6822(line 6822) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L6826-1(line 6826) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L902 garLoopResultBuilder]: At program point L8924(line 8924) the Hoare annotation is: true [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L7607(line 7607) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L7607-5(line 7607) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L895 garLoopResultBuilder]: At program point L7607-4(line 7607) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-21 09:52:42,286 INFO L895 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L7607-3(line 7607) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L8920-1(line 8920) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L895 garLoopResultBuilder]: At program point L7607-2(line 7607) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) (and (not (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_~str#1.base| 0)) (not .cse0) (= 0 |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.offset|) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~c_str~0#1.base| 0)))) [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L899 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2022-07-21 09:52:42,286 INFO L902 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2022-07-21 09:52:42,286 INFO L895 garLoopResultBuilder]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_ignore_case_harness_~str~3#1.offset| 0)) [2022-07-21 09:52:42,287 INFO L899 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2022-07-21 09:52:42,287 INFO L902 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2022-07-21 09:52:42,287 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-21 09:52:42,287 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-21 09:52:42,287 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-21 09:52:42,287 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-21 09:52:42,287 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-21 09:52:42,287 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-21 09:52:42,289 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-21 09:52:42,290 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 09:52:42,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:52:42 BoogieIcfgContainer [2022-07-21 09:52:42,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 09:52:42,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 09:52:42,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 09:52:42,309 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 09:52:42,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:52:37" (3/4) ... [2022-07-21 09:52:42,312 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 09:52:42,315 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-07-21 09:52:42,316 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-21 09:52:42,316 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-21 09:52:42,316 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-21 09:52:42,316 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str_ignore_case [2022-07-21 09:52:42,316 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-21 09:52:42,317 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-21 09:52:42,317 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-07-21 09:52:42,317 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-07-21 09:52:42,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-07-21 09:52:42,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-21 09:52:42,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 09:52:42,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 09:52:42,349 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(str == 0) && (\old(max_size) == max_size || -16 + max_size == 0)) && !(\result == 0)) && !(\old(max_size) == 16) [2022-07-21 09:52:42,445 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 09:52:42,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 09:52:42,449 INFO L158 Benchmark]: Toolchain (without parser) took 7260.03ms. Allocated memory was 79.7MB in the beginning and 203.4MB in the end (delta: 123.7MB). Free memory was 54.9MB in the beginning and 151.0MB in the end (delta: -96.1MB). Peak memory consumption was 115.5MB. Max. memory is 16.1GB. [2022-07-21 09:52:42,449 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:52:42,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1652.86ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 54.7MB in the beginning and 40.0MB in the end (delta: 14.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-07-21 09:52:42,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.14ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 39.5MB in the beginning and 83.5MB in the end (delta: -44.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 09:52:42,450 INFO L158 Benchmark]: Boogie Preprocessor took 62.33ms. Allocated memory is still 132.1MB. Free memory was 83.5MB in the beginning and 78.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 09:52:42,450 INFO L158 Benchmark]: RCFGBuilder took 632.18ms. Allocated memory is still 132.1MB. Free memory was 78.6MB in the beginning and 79.3MB in the end (delta: -683.9kB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-07-21 09:52:42,450 INFO L158 Benchmark]: TraceAbstraction took 4631.53ms. Allocated memory was 132.1MB in the beginning and 203.4MB in the end (delta: 71.3MB). Free memory was 78.7MB in the beginning and 80.4MB in the end (delta: -1.7MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2022-07-21 09:52:42,451 INFO L158 Benchmark]: Witness Printer took 139.61ms. Allocated memory is still 203.4MB. Free memory was 80.4MB in the beginning and 151.0MB in the end (delta: -70.6MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-07-21 09:52:42,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1652.86ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 54.7MB in the beginning and 40.0MB in the end (delta: 14.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.14ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 39.5MB in the beginning and 83.5MB in the end (delta: -44.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.33ms. Allocated memory is still 132.1MB. Free memory was 83.5MB in the beginning and 78.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 632.18ms. Allocated memory is still 132.1MB. Free memory was 78.6MB in the beginning and 79.3MB in the end (delta: -683.9kB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4631.53ms. Allocated memory was 132.1MB in the beginning and 203.4MB in the end (delta: 71.3MB). Free memory was 78.7MB in the beginning and 80.4MB in the end (delta: -1.7MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * Witness Printer took 139.61ms. Allocated memory is still 203.4MB. Free memory was 80.4MB in the beginning and 151.0MB in the end (delta: -70.6MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * 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, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 1937 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1455 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 731 IncrementalHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 482 mSDtfsCounter, 731 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 105 PreInvPairs, 128 NumberOfFragments, 375 HoareAnnotationTreeSize, 105 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 572 ConstructedInterpolants, 0 QuantifiedInterpolants, 1391 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1749 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 262/300 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: 8924]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8059]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7605]: Loop Invariant Derived loop invariant: (str == 0 && str == 0) || (((!(str == 0) && !(str == 0)) && 0 == c_str) && c_str == 0) - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: ((!(str == 0) && (\old(max_size) == max_size || -16 + max_size == 0)) && !(\result == 0)) && !(\old(max_size) == 16) - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: str == 0 && str == 0 RESULT: Ultimate proved your program to be correct! [2022-07-21 09:52:42,505 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