./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 c36dfa3b 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-wip.dd.seqcomp-c36dfa3 [2021-11-03 23:48:18,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 23:48:18,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 23:48:18,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 23:48:18,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 23:48:18,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 23:48:18,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 23:48:18,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 23:48:18,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 23:48:18,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 23:48:18,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 23:48:18,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 23:48:18,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 23:48:18,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 23:48:18,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 23:48:18,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 23:48:18,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 23:48:18,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 23:48:18,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 23:48:18,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 23:48:18,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 23:48:18,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 23:48:18,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 23:48:18,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 23:48:18,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 23:48:18,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 23:48:18,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 23:48:18,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 23:48:18,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 23:48:18,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 23:48:18,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 23:48:18,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 23:48:18,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 23:48:18,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 23:48:18,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 23:48:18,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 23:48:18,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 23:48:18,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 23:48:18,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 23:48:18,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 23:48:18,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 23:48:18,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 23:48:18,739 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 23:48:18,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 23:48:18,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 23:48:18,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 23:48:18,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 23:48:18,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 23:48:18,741 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 23:48:18,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 23:48:18,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 23:48:18,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 23:48:18,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 23:48:18,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 23:48:18,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 23:48:18,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 23:48:18,743 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 23:48:18,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 23:48:18,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 23:48:18,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 23:48:18,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 23:48:18,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:48:18,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 23:48:18,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 23:48:18,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 23:48:18,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 23:48:18,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 23:48:18,745 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 23:48:18,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 23:48:18,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 23:48:18,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 23:48:18,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-11-03 23:48:18,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 23:48:18,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 23:48:18,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 23:48:18,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 23:48:18,983 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 23:48:18,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-03 23:48:19,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef368b803/a456a318ec9d48fbb718369113f51a20/FLAG40eb13b40 [2021-11-03 23:48:19,593 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 23:48:19,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-03 23:48:19,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef368b803/a456a318ec9d48fbb718369113f51a20/FLAG40eb13b40 [2021-11-03 23:48:19,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef368b803/a456a318ec9d48fbb718369113f51a20 [2021-11-03 23:48:19,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 23:48:19,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 23:48:19,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 23:48:19,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 23:48:19,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 23:48:19,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:48:19" (1/1) ... [2021-11-03 23:48:19,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c59c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:19, skipping insertion in model container [2021-11-03 23:48:19,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:48:19" (1/1) ... [2021-11-03 23:48:19,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 23:48:19,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 23:48:20,102 WARN L228 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] [2021-11-03 23:48:20,111 WARN L228 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] [2021-11-03 23:48:20,127 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:48:20,138 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:48:20,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,770 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:48:20,774 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:48:20,776 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:48:20,778 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:48:20,778 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:48:20,779 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:48:20,779 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:48:20,780 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:48:20,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:48:20,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:48:20,859 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:48:20,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:48:20,879 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 23:48:20,893 WARN L228 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] [2021-11-03 23:48:20,900 WARN L228 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] [2021-11-03 23:48:20,902 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:48:20,903 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:48:20,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,970 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,979 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:20,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:48:21,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:48:21,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:48:21,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:48:21,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:48:21,026 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:48:21,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:48:21,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:48:21,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:48:21,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:48:21,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:48:21,052 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:48:21,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:48:21,187 INFO L208 MainTranslator]: Completed translation [2021-11-03 23:48:21,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21 WrapperNode [2021-11-03 23:48:21,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 23:48:21,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 23:48:21,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 23:48:21,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 23:48:21,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 23:48:21,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 23:48:21,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 23:48:21,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 23:48:21,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 23:48:21,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 23:48:21,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 23:48:21,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 23:48:21,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (1/1) ... [2021-11-03 23:48:21,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:48:21,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:48:21,409 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) [2021-11-03 23:48:21,430 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 [2021-11-03 23:48:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 23:48:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 23:48:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 23:48:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 23:48:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 23:48:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 23:48:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 23:48:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 23:48:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 23:48:21,759 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 23:48:21,760 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-11-03 23:48:21,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:48:21 BoogieIcfgContainer [2021-11-03 23:48:21,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 23:48:21,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 23:48:21,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 23:48:21,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 23:48:21,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 11:48:19" (1/3) ... [2021-11-03 23:48:21,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6923fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:48:21, skipping insertion in model container [2021-11-03 23:48:21,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:48:21" (2/3) ... [2021-11-03 23:48:21,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6923fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:48:21, skipping insertion in model container [2021-11-03 23:48:21,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:48:21" (3/3) ... [2021-11-03 23:48:21,770 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2021-11-03 23:48:21,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 23:48:21,774 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-03 23:48:21,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 23:48:21,819 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 [2021-11-03 23:48:21,820 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-03 23:48:21,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 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) [2021-11-03 23:48:21,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 23:48:21,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:48:21,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:48:21,844 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 23:48:21,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:48:21,848 INFO L85 PathProgramCache]: Analyzing trace with hash 625727524, now seen corresponding path program 1 times [2021-11-03 23:48:21,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:48:21,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344517967] [2021-11-03 23:48:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:48:21,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:48:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:48:22,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:48:22,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:48:22,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344517967] [2021-11-03 23:48:22,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344517967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:48:22,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:48:22,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 23:48:22,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739244455] [2021-11-03 23:48:22,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:48:22,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 23:48:22,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:48:22,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 23:48:22,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:48:22,139 INFO L87 Difference]: Start difference. First operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-03 23:48:22,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:48:22,230 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2021-11-03 23:48:22,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 23:48:22,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 23:48:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:48:22,238 INFO L225 Difference]: With dead ends: 76 [2021-11-03 23:48:22,239 INFO L226 Difference]: Without dead ends: 35 [2021-11-03 23:48:22,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:48:22,245 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.02ms IncrementalHoareTripleChecker+Time [2021-11-03 23:48:22,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 77.02ms Time] [2021-11-03 23:48:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-03 23:48:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-03 23:48:22,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 34 states have internal predecessors, (39), 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) [2021-11-03 23:48:22,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-03 23:48:22,279 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2021-11-03 23:48:22,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:48:22,279 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-03 23:48:22,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-03 23:48:22,280 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-03 23:48:22,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 23:48:22,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:48:22,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:48:22,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 23:48:22,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 23:48:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:48:22,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1050276392, now seen corresponding path program 1 times [2021-11-03 23:48:22,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:48:22,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840256554] [2021-11-03 23:48:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:48:22,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:48:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:48:22,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:48:22,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:48:22,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840256554] [2021-11-03 23:48:22,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840256554] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:48:22,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:48:22,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-03 23:48:22,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840642763] [2021-11-03 23:48:22,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:48:22,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 23:48:22,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:48:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 23:48:22,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-03 23:48:22,463 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-03 23:48:22,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:48:22,672 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2021-11-03 23:48:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 23:48:22,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 23:48:22,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:48:22,673 INFO L225 Difference]: With dead ends: 54 [2021-11-03 23:48:22,673 INFO L226 Difference]: Without dead ends: 35 [2021-11-03 23:48:22,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 113.99ms TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-03 23:48:22,675 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 126 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.92ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.79ms IncrementalHoareTripleChecker+Time [2021-11-03 23:48:22,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 0 Invalid, 198 Unknown, 0 Unchecked, 2.92ms Time], IncrementalHoareTripleChecker [15 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 117.79ms Time] [2021-11-03 23:48:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-03 23:48:22,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-03 23:48:22,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 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) [2021-11-03 23:48:22,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-03 23:48:22,680 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 24 [2021-11-03 23:48:22,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:48:22,680 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-03 23:48:22,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-03 23:48:22,681 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-03 23:48:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 23:48:22,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:48:22,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:48:22,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 23:48:22,682 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 23:48:22,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:48:22,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1859623018, now seen corresponding path program 1 times [2021-11-03 23:48:22,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:48:22,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934686455] [2021-11-03 23:48:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:48:22,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:48:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:48:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:48:22,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:48:22,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934686455] [2021-11-03 23:48:22,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934686455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:48:22,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:48:22,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-03 23:48:22,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160765452] [2021-11-03 23:48:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:48:22,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 23:48:22,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:48:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 23:48:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-03 23:48:22,871 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2021-11-03 23:48:23,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:48:23,162 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-11-03 23:48:23,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 23:48:23,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 23:48:23,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:48:23,165 INFO L225 Difference]: With dead ends: 35 [2021-11-03 23:48:23,165 INFO L226 Difference]: Without dead ends: 33 [2021-11-03 23:48:23,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 196.39ms TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-11-03 23:48:23,170 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 147 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.21ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.77ms IncrementalHoareTripleChecker+Time [2021-11-03 23:48:23,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 0 Invalid, 174 Unknown, 0 Unchecked, 8.21ms Time], IncrementalHoareTripleChecker [9 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 109.77ms Time] [2021-11-03 23:48:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-03 23:48:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-03 23:48:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 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) [2021-11-03 23:48:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-11-03 23:48:23,183 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2021-11-03 23:48:23,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:48:23,184 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-11-03 23:48:23,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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) [2021-11-03 23:48:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-11-03 23:48:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 23:48:23,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:48:23,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:48:23,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 23:48:23,186 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 23:48:23,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:48:23,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1676025637, now seen corresponding path program 1 times [2021-11-03 23:48:23,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:48:23,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673737530] [2021-11-03 23:48:23,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:48:23,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:48:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:48:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:48:23,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:48:23,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673737530] [2021-11-03 23:48:23,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673737530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:48:23,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:48:23,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-03 23:48:23,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274469911] [2021-11-03 23:48:23,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:48:23,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 23:48:23,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:48:23,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 23:48:23,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 23:48:23,416 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-11-03 23:48:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:48:23,455 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2021-11-03 23:48:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 23:48:23,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-03 23:48:23,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:48:23,456 INFO L225 Difference]: With dead ends: 33 [2021-11-03 23:48:23,456 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 23:48:23,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.18ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-03 23:48:23,457 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.82ms IncrementalHoareTripleChecker+Time [2021-11-03 23:48:23,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 9.82ms Time] [2021-11-03 23:48:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 23:48:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 23:48:23,458 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) [2021-11-03 23:48:23,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 23:48:23,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-11-03 23:48:23,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:48:23,458 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 23:48:23,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-11-03 23:48:23,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 23:48:23,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 23:48:23,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-03 23:48:23,461 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-03 23:48:23,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 23:48:23,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 23:48:23,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:48:23,482 INFO L854 garLoopResultBuilder]: At program point L6295(lines 6292 6296) the Hoare annotation is: false [2021-11-03 23:48:23,482 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-03 23:48:23,482 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 23:48:23,482 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-03 23:48:23,482 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point L6854(lines 6854 6855) no Hoare annotation was computed. [2021-11-03 23:48:23,483 INFO L858 garLoopResultBuilder]: For program point L6854-2(lines 6854 6855) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-03 23:48:23,484 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-03 23:48:23,485 INFO L854 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2021-11-03 23:48:23,485 INFO L854 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-11-03 23:48:23,485 INFO L858 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,485 INFO L858 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,485 INFO L854 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2021-11-03 23:48:23,485 INFO L861 garLoopResultBuilder]: At program point L7264(line 7264) the Hoare annotation is: true [2021-11-03 23:48:23,485 INFO L858 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,486 INFO L858 garLoopResultBuilder]: For program point L6306-7(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,486 INFO L858 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,486 INFO L854 garLoopResultBuilder]: At program point L6306-6(lines 6302 6307) the Hoare annotation is: false [2021-11-03 23:48:23,486 INFO L854 garLoopResultBuilder]: At program point L6934(lines 6933 6935) the Hoare annotation is: false [2021-11-03 23:48:23,486 INFO L854 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2021-11-03 23:48:23,486 INFO L858 garLoopResultBuilder]: For program point L6306-12(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,486 INFO L858 garLoopResultBuilder]: For program point L6306-9(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,486 INFO L858 garLoopResultBuilder]: For program point L6306-10(line 6306) no Hoare annotation was computed. [2021-11-03 23:48:23,487 INFO L854 garLoopResultBuilder]: At program point L6930(lines 6926 6931) the Hoare annotation is: false [2021-11-03 23:48:23,487 INFO L854 garLoopResultBuilder]: At program point L6306-13(lines 6302 6307) the Hoare annotation is: false [2021-11-03 23:48:23,487 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 1234549) [2021-11-03 23:48:23,490 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-03 23:48:23,491 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 23:48:23,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 11:48:23 BoogieIcfgContainer [2021-11-03 23:48:23,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 23:48:23,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 23:48:23,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 23:48:23,502 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 23:48:23,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:48:21" (3/4) ... [2021-11-03 23:48:23,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 23:48:23,512 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-03 23:48:23,513 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 23:48:23,513 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 23:48:23,513 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 23:48:23,542 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-03 23:48:23,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 23:48:23,543 INFO L158 Benchmark]: Toolchain (without parser) took 3758.01ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 80.2MB in the beginning and 96.8MB in the end (delta: -16.6MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2021-11-03 23:48:23,543 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory was 33.6MB in the beginning and 33.6MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 23:48:23,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1401.16ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 80.0MB in the beginning and 73.9MB in the end (delta: 6.0MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2021-11-03 23:48:23,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 139.41ms. Allocated memory is still 146.8MB. Free memory was 73.9MB in the beginning and 69.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-03 23:48:23,544 INFO L158 Benchmark]: Boogie Preprocessor took 53.07ms. Allocated memory is still 146.8MB. Free memory was 69.0MB in the beginning and 66.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-03 23:48:23,544 INFO L158 Benchmark]: RCFGBuilder took 379.11ms. Allocated memory is still 146.8MB. Free memory was 66.4MB in the beginning and 92.8MB in the end (delta: -26.4MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-11-03 23:48:23,544 INFO L158 Benchmark]: TraceAbstraction took 1739.32ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 92.4MB in the beginning and 102.0MB in the end (delta: -9.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2021-11-03 23:48:23,545 INFO L158 Benchmark]: Witness Printer took 40.53ms. Allocated memory is still 186.6MB. Free memory was 102.0MB in the beginning and 96.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-03 23:48:23,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 77.6MB. Free memory was 33.6MB in the beginning and 33.6MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1401.16ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 80.0MB in the beginning and 73.9MB in the end (delta: 6.0MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 139.41ms. Allocated memory is still 146.8MB. Free memory was 73.9MB in the beginning and 69.0MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.07ms. Allocated memory is still 146.8MB. Free memory was 69.0MB in the beginning and 66.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.11ms. Allocated memory is still 146.8MB. Free memory was 66.4MB in the beginning and 92.8MB in the end (delta: -26.4MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1739.32ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 92.4MB in the beginning and 102.0MB in the end (delta: -9.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 40.53ms. Allocated memory is still 186.6MB. Free memory was 102.0MB in the beginning and 96.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1680.32ms, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 17.21ms, AutomataDifference: 699.28ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 19.46ms, InitialAbstractionConstructionTime: 7.23ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 314.39ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 260.65ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 0 mSDtfsCounter, 405 mSolverCounterSat, 11.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 361.59ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 31.08ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 13 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 7.31ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.80ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 16.68ms SsaConstructionTime, 208.62ms SatisfiabilityAnalysisTime, 491.66ms InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: max_size == 1234549 - InvariantResult [Line: 7264]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6933]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6292]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6844]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6302]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-03 23:48:23,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE