./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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_bytes_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 be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-16 21:54:13,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 21:54:13,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 21:54:13,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 21:54:13,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 21:54:13,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 21:54:13,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 21:54:13,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 21:54:13,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 21:54:13,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 21:54:13,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 21:54:13,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 21:54:13,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 21:54:13,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 21:54:13,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 21:54:13,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 21:54:13,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 21:54:13,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 21:54:13,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 21:54:13,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 21:54:13,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 21:54:13,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 21:54:13,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 21:54:13,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 21:54:13,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 21:54:13,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 21:54:13,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 21:54:13,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 21:54:13,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 21:54:13,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 21:54:13,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 21:54:13,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 21:54:13,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 21:54:13,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 21:54:13,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 21:54:13,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 21:54:13,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 21:54:13,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 21:54:13,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 21:54:13,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 21:54:13,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 21:54:13,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-16 21:54:13,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 21:54:13,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 21:54:13,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 21:54:13,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 21:54:13,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 21:54:13,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 21:54:13,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 21:54:13,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 21:54:13,665 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 21:54:13,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 21:54:13,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-16 21:54:13,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 21:54:13,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 21:54:13,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 21:54:13,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 21:54:13,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 21:54:13,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 21:54:13,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 21:54:13,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 21:54:13,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 21:54:13,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 21:54:13,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 21:54:13,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 21:54:13,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 21:54:13,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 21:54:13,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-16 21:54:13,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-16 21:54:13,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 21:54:13,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 21:54:13,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 21:54:13,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 21:54:13,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-11-16 21:54:13,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 21:54:13,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 21:54:13,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 21:54:13,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 21:54:13,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 21:54:13,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-16 21:54:14,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b3eea9a/794c7c2d1fda4b99b63dd41bad7cfbb5/FLAG3322e9fe9 [2021-11-16 21:54:14,609 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 21:54:14,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-16 21:54:14,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b3eea9a/794c7c2d1fda4b99b63dd41bad7cfbb5/FLAG3322e9fe9 [2021-11-16 21:54:14,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b3eea9a/794c7c2d1fda4b99b63dd41bad7cfbb5 [2021-11-16 21:54:14,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 21:54:14,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 21:54:14,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 21:54:14,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 21:54:14,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 21:54:14,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:54:14" (1/1) ... [2021-11-16 21:54:14,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3998ae87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:14, skipping insertion in model container [2021-11-16 21:54:14,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:54:14" (1/1) ... [2021-11-16 21:54:14,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 21:54:14,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 21:54:15,133 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_bytes_harness.i[4490,4503] [2021-11-16 21:54:15,138 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_bytes_harness.i[4550,4563] [2021-11-16 21:54:15,154 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 21:54:15,159 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 21:54:15,694 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,695 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,697 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,698 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,699 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,711 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,712 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,713 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,714 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,716 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,717 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,718 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,718 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:15,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 21:54:15,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 21:54:15,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 21:54:15,947 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 21:54:15,947 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 21:54:15,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 21:54:15,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 21:54:15,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 21:54:15,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 21:54:15,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 21:54:16,053 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 21:54:16,063 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 21:54:16,097 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 21:54:16,118 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_bytes_harness.i[4490,4503] [2021-11-16 21:54:16,119 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_bytes_harness.i[4550,4563] [2021-11-16 21:54:16,120 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 21:54:16,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 21:54:16,174 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,174 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,175 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,175 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,175 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,179 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,180 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,180 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,181 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,181 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,182 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,182 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,182 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 21:54:16,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 21:54:16,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 21:54:16,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 21:54:16,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 21:54:16,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 21:54:16,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 21:54:16,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 21:54:16,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 21:54:16,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 21:54:16,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 21:54:16,230 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 21:54:16,243 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 21:54:16,358 INFO L208 MainTranslator]: Completed translation [2021-11-16 21:54:16,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16 WrapperNode [2021-11-16 21:54:16,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 21:54:16,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 21:54:16,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 21:54:16,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 21:54:16,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,460 INFO L137 Inliner]: procedures = 681, calls = 975, calls flagged for inlining = 44, calls inlined = 6, statements flattened = 59 [2021-11-16 21:54:16,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 21:54:16,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 21:54:16,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 21:54:16,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 21:54:16,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 21:54:16,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 21:54:16,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 21:54:16,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 21:54:16,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (1/1) ... [2021-11-16 21:54:16,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 21:54:16,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 21:54:16,528 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) [2021-11-16 21:54:16,550 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 [2021-11-16 21:54:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-16 21:54:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-16 21:54:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-16 21:54:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-16 21:54:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-16 21:54:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-16 21:54:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-16 21:54:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 21:54:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 21:54:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 21:54:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 21:54:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 21:54:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-16 21:54:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-16 21:54:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-11-16 21:54:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-11-16 21:54:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-16 21:54:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-16 21:54:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 21:54:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 21:54:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-16 21:54:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-16 21:54:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-16 21:54:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-16 21:54:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-16 21:54:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-16 21:54:16,805 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 21:54:16,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 21:54:16,939 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 21:54:16,945 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 21:54:16,945 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-16 21:54:16,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 09:54:16 BoogieIcfgContainer [2021-11-16 21:54:16,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 21:54:16,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 21:54:16,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 21:54:16,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 21:54:16,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:54:14" (1/3) ... [2021-11-16 21:54:16,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12fda32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:54:16, skipping insertion in model container [2021-11-16 21:54:16,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:54:16" (2/3) ... [2021-11-16 21:54:16,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12fda32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:54:16, skipping insertion in model container [2021-11-16 21:54:16,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 09:54:16" (3/3) ... [2021-11-16 21:54:16,953 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2021-11-16 21:54:16,957 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 21:54:16,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 21:54:16,993 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 21:54:16,998 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-16 21:54:16,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 21:54:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-16 21:54:17,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-16 21:54:17,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 21:54:17,032 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-16 21:54:17,033 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 21:54:17,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 21:54:17,037 INFO L85 PathProgramCache]: Analyzing trace with hash 26650354, now seen corresponding path program 1 times [2021-11-16 21:54:17,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 21:54:17,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230124810] [2021-11-16 21:54:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 21:54:17,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 21:54:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 21:54:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 21:54:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-16 21:54:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 21:54:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-16 21:54:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-16 21:54:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 21:54:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 21:54:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-16 21:54:17,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 21:54:17,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230124810] [2021-11-16 21:54:17,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230124810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 21:54:17,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 21:54:17,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-16 21:54:17,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144343099] [2021-11-16 21:54:17,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 21:54:17,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-16 21:54:17,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 21:54:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-16 21:54:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-11-16 21:54:17,892 INFO L87 Difference]: Start difference. First operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-16 21:54:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 21:54:18,453 INFO L93 Difference]: Finished difference Result 128 states and 154 transitions. [2021-11-16 21:54:18,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-16 21:54:18,456 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 55 [2021-11-16 21:54:18,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 21:54:18,465 INFO L225 Difference]: With dead ends: 128 [2021-11-16 21:54:18,466 INFO L226 Difference]: Without dead ends: 58 [2021-11-16 21:54:18,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2021-11-16 21:54:18,475 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 86 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-16 21:54:18,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 406 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-16 21:54:18,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-16 21:54:18,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-16 21:54:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.054054054054054) internal successors, (39), 38 states have internal predecessors, (39), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-16 21:54:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-11-16 21:54:18,506 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 55 [2021-11-16 21:54:18,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 21:54:18,508 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-16 21:54:18,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-16 21:54:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-11-16 21:54:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-16 21:54:18,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 21:54:18,510 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-16 21:54:18,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-16 21:54:18,511 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 21:54:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 21:54:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1047718708, now seen corresponding path program 1 times [2021-11-16 21:54:18,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 21:54:18,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962563324] [2021-11-16 21:54:18,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 21:54:18,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 21:54:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 21:54:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 21:54:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-16 21:54:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 21:54:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-16 21:54:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-16 21:54:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 21:54:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 21:54:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-16 21:54:18,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 21:54:18,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962563324] [2021-11-16 21:54:18,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962563324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 21:54:18,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 21:54:18,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-16 21:54:18,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429965471] [2021-11-16 21:54:18,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 21:54:18,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-16 21:54:18,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 21:54:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-16 21:54:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-11-16 21:54:18,972 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-16 21:54:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 21:54:19,353 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-11-16 21:54:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-16 21:54:19,354 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 55 [2021-11-16 21:54:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 21:54:19,355 INFO L225 Difference]: With dead ends: 64 [2021-11-16 21:54:19,356 INFO L226 Difference]: Without dead ends: 60 [2021-11-16 21:54:19,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-11-16 21:54:19,357 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 51 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-16 21:54:19,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 363 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-16 21:54:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-16 21:54:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-16 21:54:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-16 21:54:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2021-11-16 21:54:19,366 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 55 [2021-11-16 21:54:19,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 21:54:19,367 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2021-11-16 21:54:19,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-16 21:54:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2021-11-16 21:54:19,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-16 21:54:19,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 21:54:19,369 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-16 21:54:19,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-16 21:54:19,370 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 21:54:19,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 21:54:19,370 INFO L85 PathProgramCache]: Analyzing trace with hash -776855734, now seen corresponding path program 1 times [2021-11-16 21:54:19,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 21:54:19,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020400637] [2021-11-16 21:54:19,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 21:54:19,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 21:54:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 21:54:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 21:54:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-16 21:54:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 21:54:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-16 21:54:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-16 21:54:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 21:54:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 21:54:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-16 21:54:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-16 21:54:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-16 21:54:19,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 21:54:19,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020400637] [2021-11-16 21:54:19,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020400637] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 21:54:19,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241067494] [2021-11-16 21:54:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 21:54:19,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 21:54:19,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 21:54:19,776 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) [2021-11-16 21:54:19,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-16 21:54:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 21:54:19,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-16 21:54:19,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 21:54:20,145 INFO L354 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2021-11-16 21:54:20,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-16 21:54:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 21:54:20,215 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-16 21:54:20,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2021-11-16 21:54:27,081 INFO L354 Elim1Store]: treesize reduction 120, result has 21.6 percent of original size [2021-11-16 21:54:27,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 340 treesize of output 216 [2021-11-16 21:54:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-16 21:54:28,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 21:54:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-16 21:54:33,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241067494] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-16 21:54:33,512 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-16 21:54:33,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 30, 20] total 57 [2021-11-16 21:54:33,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769523197] [2021-11-16 21:54:33,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-16 21:54:33,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-16 21:54:33,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 21:54:33,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-16 21:54:33,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=2998, Unknown=1, NotChecked=0, Total=3192 [2021-11-16 21:54:33,516 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 57 states, 47 states have (on average 2.25531914893617) internal successors, (106), 41 states have internal predecessors, (106), 16 states have call successors, (28), 7 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2021-11-16 21:54:45,731 WARN L227 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-16 21:54:45,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 21:54:45,888 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-11-16 21:54:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-16 21:54:45,888 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 47 states have (on average 2.25531914893617) internal successors, (106), 41 states have internal predecessors, (106), 16 states have call successors, (28), 7 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) Word has length 69 [2021-11-16 21:54:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 21:54:45,889 INFO L225 Difference]: With dead ends: 64 [2021-11-16 21:54:45,889 INFO L226 Difference]: Without dead ends: 0 [2021-11-16 21:54:45,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=220, Invalid=3561, Unknown=1, NotChecked=0, Total=3782 [2021-11-16 21:54:45,891 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 21:54:45,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 299 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 192 Invalid, 0 Unknown, 72 Unchecked, 0.1s Time] [2021-11-16 21:54:45,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-16 21:54:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-16 21:54:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 21:54:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-16 21:54:45,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2021-11-16 21:54:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 21:54:45,893 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-16 21:54:45,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 47 states have (on average 2.25531914893617) internal successors, (106), 41 states have internal predecessors, (106), 16 states have call successors, (28), 7 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2021-11-16 21:54:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-16 21:54:45,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-16 21:54:45,896 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-16 21:54:45,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-16 21:54:46,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 21:54:46,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-16 21:54:46,170 INFO L858 garLoopResultBuilder]: For program point L6927-1(lines 6927 6929) no Hoare annotation was computed. [2021-11-16 21:54:46,170 INFO L854 garLoopResultBuilder]: At program point L6927(lines 6927 6929) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-11-16 21:54:46,171 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6926 6931) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-11-16 21:54:46,171 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6926 6931) no Hoare annotation was computed. [2021-11-16 21:54:46,171 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6926 6931) no Hoare annotation was computed. [2021-11-16 21:54:46,171 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-11-16 21:54:46,171 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-11-16 21:54:46,171 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-11-16 21:54:46,171 INFO L861 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6292 6296) the Hoare annotation is: true [2021-11-16 21:54:46,171 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6292 6296) no Hoare annotation was computed. [2021-11-16 21:54:46,171 INFO L861 garLoopResultBuilder]: At program point L6294(line 6294) the Hoare annotation is: true [2021-11-16 21:54:46,171 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6292 6296) no Hoare annotation was computed. [2021-11-16 21:54:46,172 INFO L861 garLoopResultBuilder]: At program point L6294-1(line 6294) the Hoare annotation is: true [2021-11-16 21:54:46,172 INFO L858 garLoopResultBuilder]: For program point L6294-2(line 6294) no Hoare annotation was computed. [2021-11-16 21:54:46,172 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-16 21:54:46,172 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-16 21:54:46,172 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-16 21:54:46,172 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-16 21:54:46,172 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6933 6935) no Hoare annotation was computed. [2021-11-16 21:54:46,172 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6933 6935) no Hoare annotation was computed. [2021-11-16 21:54:46,173 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6933 6935) the Hoare annotation is: true [2021-11-16 21:54:46,173 INFO L858 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2021-11-16 21:54:46,173 INFO L858 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2021-11-16 21:54:46,173 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6302 6307) the Hoare annotation is: true [2021-11-16 21:54:46,173 INFO L858 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2021-11-16 21:54:46,173 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6302 6307) no Hoare annotation was computed. [2021-11-16 21:54:46,173 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6302 6307) no Hoare annotation was computed. [2021-11-16 21:54:46,174 INFO L858 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2021-11-16 21:54:46,174 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-16 21:54:46,174 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-16 21:54:46,174 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-16 21:54:46,175 INFO L854 garLoopResultBuilder]: At program point L6846(line 6846) the Hoare annotation is: (and (<= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073710786165) (< 0 (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073709551616))) [2021-11-16 21:54:46,175 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-16 21:54:46,175 INFO L858 garLoopResultBuilder]: For program point L6854-5(lines 6854 6855) no Hoare annotation was computed. [2021-11-16 21:54:46,175 INFO L858 garLoopResultBuilder]: For program point L7261-2(line 7261) no Hoare annotation was computed. [2021-11-16 21:54:46,175 INFO L858 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2021-11-16 21:54:46,175 INFO L854 garLoopResultBuilder]: At program point L7261-1(line 7261) the Hoare annotation is: false [2021-11-16 21:54:46,175 INFO L858 garLoopResultBuilder]: For program point L6846-1(line 6846) no Hoare annotation was computed. [2021-11-16 21:54:46,176 INFO L854 garLoopResultBuilder]: At program point L7261(line 7261) the Hoare annotation is: false [2021-11-16 21:54:46,176 INFO L854 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2021-11-16 21:54:46,176 INFO L858 garLoopResultBuilder]: For program point L6851-1(line 6851) no Hoare annotation was computed. [2021-11-16 21:54:46,176 INFO L854 garLoopResultBuilder]: At program point L6851(line 6851) the Hoare annotation is: (and (<= 18446744073709551616 (+ (* 18446744073709551616 (div (+ (* |ULTIMATE.start_ensure_string_is_allocated_~len#1| (- 1)) 18446744073710786164) 18446744073709551616)) |ULTIMATE.start_ensure_string_is_allocated_~len#1|)) (let ((.cse0 (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616))) (<= (+ (* 18446744073709551616 .cse0) 18446744073709551616) (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ (* |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| (- 1)) 18446744073710786164 (* .cse0 18446744073709551616)) 18446744073709551616)))))) [2021-11-16 21:54:46,176 INFO L854 garLoopResultBuilder]: At program point L7262(line 7262) the Hoare annotation is: false [2021-11-16 21:54:46,176 INFO L854 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2021-11-16 21:54:46,177 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-16 21:54:46,177 INFO L854 garLoopResultBuilder]: At program point L7264(line 7264) the Hoare annotation is: (and (not (= |ULTIMATE.start_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_aws_string_bytes_harness_~str~3#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_nondet_length_#res#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res#1.base| 0))) [2021-11-16 21:54:46,177 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-16 21:54:46,177 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-16 21:54:46,178 INFO L858 garLoopResultBuilder]: For program point L6845-1(line 6845) no Hoare annotation was computed. [2021-11-16 21:54:46,178 INFO L858 garLoopResultBuilder]: For program point L7262-2(line 7262) no Hoare annotation was computed. [2021-11-16 21:54:46,178 INFO L854 garLoopResultBuilder]: At program point L6845(line 6845) the Hoare annotation is: (and (<= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073710786165) (< 0 (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073709551616))) [2021-11-16 21:54:46,179 INFO L854 garLoopResultBuilder]: At program point L7262-1(line 7262) the Hoare annotation is: false [2021-11-16 21:54:46,179 INFO L854 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2021-11-16 21:54:46,179 INFO L854 garLoopResultBuilder]: At program point L6854(line 6854) the Hoare annotation is: false [2021-11-16 21:54:46,179 INFO L858 garLoopResultBuilder]: For program point L6854-3(line 6854) no Hoare annotation was computed. [2021-11-16 21:54:46,179 INFO L854 garLoopResultBuilder]: At program point L6854-2(line 6854) the Hoare annotation is: false [2021-11-16 21:54:46,179 INFO L858 garLoopResultBuilder]: For program point L6854-1(lines 6854 6855) no Hoare annotation was computed. [2021-11-16 21:54:46,180 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-16 21:54:46,180 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-16 21:54:46,182 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-16 21:54:46,182 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-16 21:54:46,182 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-16 21:54:46,182 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-16 21:54:46,185 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-16 21:54:46,187 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-16 21:54:46,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 09:54:46 BoogieIcfgContainer [2021-11-16 21:54:46,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-16 21:54:46,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-16 21:54:46,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-16 21:54:46,201 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-16 21:54:46,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 09:54:16" (3/4) ... [2021-11-16 21:54:46,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-16 21:54:46,216 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-16 21:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-16 21:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-11-16 21:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2021-11-16 21:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-16 21:54:46,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-16 21:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-11-16 21:54:46,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-11-16 21:54:46,224 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-16 21:54:46,224 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-16 21:54:46,225 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-16 21:54:46,225 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-16 21:54:46,242 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0) [2021-11-16 21:54:46,259 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-16 21:54:46,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-16 21:54:46,260 INFO L158 Benchmark]: Toolchain (without parser) took 31422.67ms. Allocated memory was 90.2MB in the beginning and 218.1MB in the end (delta: 127.9MB). Free memory was 53.1MB in the beginning and 120.2MB in the end (delta: -67.1MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2021-11-16 21:54:46,260 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-16 21:54:46,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1520.57ms. Allocated memory was 90.2MB in the beginning and 148.9MB in the end (delta: 58.7MB). Free memory was 53.1MB in the beginning and 98.7MB in the end (delta: -45.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2021-11-16 21:54:46,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.73ms. Allocated memory is still 148.9MB. Free memory was 98.7MB in the beginning and 93.8MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-16 21:54:46,261 INFO L158 Benchmark]: Boogie Preprocessor took 29.23ms. Allocated memory is still 148.9MB. Free memory was 93.8MB in the beginning and 90.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-16 21:54:46,261 INFO L158 Benchmark]: RCFGBuilder took 455.05ms. Allocated memory is still 148.9MB. Free memory was 90.9MB in the beginning and 74.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-16 21:54:46,261 INFO L158 Benchmark]: TraceAbstraction took 29251.76ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 73.6MB in the beginning and 125.5MB in the end (delta: -51.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-16 21:54:46,262 INFO L158 Benchmark]: Witness Printer took 58.86ms. Allocated memory is still 218.1MB. Free memory was 125.5MB in the beginning and 120.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-16 21:54:46,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1520.57ms. Allocated memory was 90.2MB in the beginning and 148.9MB in the end (delta: 58.7MB). Free memory was 53.1MB in the beginning and 98.7MB in the end (delta: -45.6MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.73ms. Allocated memory is still 148.9MB. Free memory was 98.7MB in the beginning and 93.8MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.23ms. Allocated memory is still 148.9MB. Free memory was 93.8MB in the beginning and 90.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 455.05ms. Allocated memory is still 148.9MB. Free memory was 90.9MB in the beginning and 74.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 29251.76ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 73.6MB in the beginning and 125.5MB in the end (delta: -51.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 58.86ms. Allocated memory is still 218.1MB. Free memory was 125.5MB in the beginning and 120.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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 9 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.2s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 1068 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 72 IncrementalHoareTripleChecker+Unchecked, 953 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1085 IncrementalHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 115 mSDtfsCounter, 1085 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 20.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 42 PreInvPairs, 45 NumberOfFragments, 112 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 312 ConstructedInterpolants, 34 QuantifiedInterpolants, 7542 SizeOfPredicates, 30 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 72/87 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: 7264]: Loop Invariant Derived loop invariant: (((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0) - InvariantResult [Line: 6850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6844]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-16 21:54:46,319 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