./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_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_eq_c_str_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 b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 23:50:57,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 23:50:57,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 23:50:57,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 23:50:57,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 23:50:57,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 23:50:57,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 23:50:57,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 23:50:57,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 23:50:57,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 23:50:57,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 23:50:57,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 23:50:57,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 23:50:57,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 23:50:57,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 23:50:57,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 23:50:57,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 23:50:57,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 23:50:57,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 23:50:57,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 23:50:57,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 23:50:57,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 23:50:57,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 23:50:57,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 23:50:57,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 23:50:57,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 23:50:57,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 23:50:57,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 23:50:57,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 23:50:57,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 23:50:57,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 23:50:57,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 23:50:57,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 23:50:57,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 23:50:57,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 23:50:57,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 23:50:57,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 23:50:57,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 23:50:57,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 23:50:57,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 23:50:57,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 23:50:57,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 23:50:57,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 23:50:57,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 23:50:57,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 23:50:57,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 23:50:57,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 23:50:57,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 23:50:57,701 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 23:50:57,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 23:50:57,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 23:50:57,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 23:50:57,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 23:50:57,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 23:50:57,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 23:50:57,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 23:50:57,703 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 23:50:57,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 23:50:57,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 23:50:57,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 23:50:57,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 23:50:57,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:50:57,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 23:50:57,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 23:50:57,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 23:50:57,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 23:50:57,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 23:50:57,705 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 23:50:57,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 23:50:57,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 23:50:57,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 23:50:57,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-11-03 23:50:58,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 23:50:58,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 23:50:58,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 23:50:58,039 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 23:50:58,040 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 23:50:58,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-03 23:50:58,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bf0bf65/4a9ca36264e4424895d1a99dc52fe74f/FLAG939928865 [2021-11-03 23:50:58,794 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 23:50:58,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-03 23:50:58,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bf0bf65/4a9ca36264e4424895d1a99dc52fe74f/FLAG939928865 [2021-11-03 23:50:58,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bf0bf65/4a9ca36264e4424895d1a99dc52fe74f [2021-11-03 23:50:58,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 23:50:58,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 23:50:58,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 23:50:58,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 23:50:58,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 23:50:58,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:50:58" (1/1) ... [2021-11-03 23:50:58,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38350d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:50:58, skipping insertion in model container [2021-11-03 23:50:58,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:50:58" (1/1) ... [2021-11-03 23:50:58,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 23:50:59,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 23:50:59,270 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_eq_c_str_harness.i[4493,4506] [2021-11-03 23:50:59,280 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_eq_c_str_harness.i[4553,4566] [2021-11-03 23:50:59,306 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:50:59,313 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:50:59,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,943 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:50:59,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,238 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:51:00,239 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:51:00,241 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:51:00,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:51:00,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:51:00,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:51:00,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:51:00,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:51:00,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:51:00,258 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:51:00,426 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:51:00,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,528 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:51:00,610 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 23:51:00,638 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_eq_c_str_harness.i[4493,4506] [2021-11-03 23:51:00,639 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_eq_c_str_harness.i[4553,4566] [2021-11-03 23:51:00,640 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:51:00,641 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:51:00,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:51:00,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:51:00,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:51:00,749 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:51:00,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:51:00,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:51:00,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:51:00,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:51:00,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:51:00,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:51:00,773 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:51:00,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:51:00,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:51:01,181 INFO L208 MainTranslator]: Completed translation [2021-11-03 23:51:01,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01 WrapperNode [2021-11-03 23:51:01,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 23:51:01,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 23:51:01,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 23:51:01,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 23:51:01,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 23:51:01,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 23:51:01,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 23:51:01,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 23:51:01,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 23:51:01,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 23:51:01,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 23:51:01,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 23:51:01,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (1/1) ... [2021-11-03 23:51:01,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:51:01,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:51:01,508 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 23:51:01,533 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 23:51:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 23:51:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 23:51:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 23:51:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 23:51:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 23:51:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 23:51:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 23:51:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 23:51:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 23:51:02,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 23:51:02,158 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2021-11-03 23:51:02,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:51:02 BoogieIcfgContainer [2021-11-03 23:51:02,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 23:51:02,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 23:51:02,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 23:51:02,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 23:51:02,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 11:50:58" (1/3) ... [2021-11-03 23:51:02,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7805f4e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:51:02, skipping insertion in model container [2021-11-03 23:51:02,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:51:01" (2/3) ... [2021-11-03 23:51:02,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7805f4e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:51:02, skipping insertion in model container [2021-11-03 23:51:02,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:51:02" (3/3) ... [2021-11-03 23:51:02,171 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2021-11-03 23:51:02,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 23:51:02,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 23:51:02,227 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 23:51:02,237 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 23:51:02,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 23:51:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 80 states have (on average 1.4375) internal successors, (115), 85 states have internal predecessors, (115), 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 23:51:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 23:51:02,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:02,275 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] [2021-11-03 23:51:02,276 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:02,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:02,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1267490943, now seen corresponding path program 1 times [2021-11-03 23:51:02,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:02,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563987204] [2021-11-03 23:51:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:02,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:02,671 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 23:51:02,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:02,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563987204] [2021-11-03 23:51:02,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563987204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:02,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:02,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 23:51:02,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363581791] [2021-11-03 23:51:02,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:02,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 23:51:02,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 23:51:02,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:51:02,709 INFO L87 Difference]: Start difference. First operand has 86 states, 80 states have (on average 1.4375) internal successors, (115), 85 states have internal predecessors, (115), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 23:51:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:02,864 INFO L93 Difference]: Finished difference Result 166 states and 222 transitions. [2021-11-03 23:51:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 23:51:02,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2021-11-03 23:51:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:02,874 INFO L225 Difference]: With dead ends: 166 [2021-11-03 23:51:02,875 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 23:51:02,878 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 23:51:02,880 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.66ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:02,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 100 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 132.66ms Time] [2021-11-03 23:51:02,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 23:51:02,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 23:51:02,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 79 states have internal predecessors, (92), 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 23:51:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2021-11-03 23:51:02,912 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 22 [2021-11-03 23:51:02,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:02,913 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2021-11-03 23:51:02,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 23:51:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2021-11-03 23:51:02,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-03 23:51:02,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:02,915 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] [2021-11-03 23:51:02,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 23:51:02,915 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1009325505, now seen corresponding path program 1 times [2021-11-03 23:51:02,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:02,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737437152] [2021-11-03 23:51:02,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:02,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:03,131 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 23:51:03,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:03,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737437152] [2021-11-03 23:51:03,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737437152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:03,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:03,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:51:03,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975936552] [2021-11-03 23:51:03,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:03,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:51:03,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:03,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:51:03,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:51:03,139 INFO L87 Difference]: Start difference. First operand 80 states and 92 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 23:51:03,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:03,454 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2021-11-03 23:51:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:51:03,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-11-03 23:51:03,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:03,456 INFO L225 Difference]: With dead ends: 144 [2021-11-03 23:51:03,456 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 23:51:03,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.16ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:51:03,458 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 203.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 262.99ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:03,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 275 Unknown, 0 Unchecked, 5.44ms Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 262.99ms Time] [2021-11-03 23:51:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 23:51:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 23:51:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 79 states have internal predecessors, (91), 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 23:51:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2021-11-03 23:51:03,472 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 22 [2021-11-03 23:51:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:03,472 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-11-03 23:51:03,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 23:51:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2021-11-03 23:51:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 23:51:03,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:03,473 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, 1, 1] [2021-11-03 23:51:03,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 23:51:03,474 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:03,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2090456739, now seen corresponding path program 1 times [2021-11-03 23:51:03,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:03,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911903787] [2021-11-03 23:51:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:03,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:03,679 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 23:51:03,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:03,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911903787] [2021-11-03 23:51:03,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911903787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:03,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:03,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-03 23:51:03,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539864863] [2021-11-03 23:51:03,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:03,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 23:51:03,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 23:51:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 23:51:03,683 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 23:51:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:04,001 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2021-11-03 23:51:04,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 23:51:04,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 33 [2021-11-03 23:51:04,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:04,002 INFO L225 Difference]: With dead ends: 110 [2021-11-03 23:51:04,003 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 23:51:04,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 103.21ms TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-11-03 23:51:04,004 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 426 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 172.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.09ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 222.74ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:04,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 0 Invalid, 279 Unknown, 0 Unchecked, 4.09ms Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 222.74ms Time] [2021-11-03 23:51:04,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 23:51:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 23:51:04,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.2) internal successors, (90), 79 states have internal predecessors, (90), 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 23:51:04,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2021-11-03 23:51:04,013 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 33 [2021-11-03 23:51:04,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:04,013 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2021-11-03 23:51:04,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 23:51:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2021-11-03 23:51:04,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 23:51:04,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:04,015 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, 1, 1, 1] [2021-11-03 23:51:04,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 23:51:04,016 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:04,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:04,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1931203523, now seen corresponding path program 1 times [2021-11-03 23:51:04,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:04,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728074854] [2021-11-03 23:51:04,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:04,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:04,168 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 23:51:04,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:04,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728074854] [2021-11-03 23:51:04,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728074854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:04,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:04,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 23:51:04,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934737464] [2021-11-03 23:51:04,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:04,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 23:51:04,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:04,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 23:51:04,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:51:04,172 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 23:51:04,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:04,400 INFO L93 Difference]: Finished difference Result 132 states and 150 transitions. [2021-11-03 23:51:04,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 23:51:04,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-11-03 23:51:04,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:04,402 INFO L225 Difference]: With dead ends: 132 [2021-11-03 23:51:04,402 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 23:51:04,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.92ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 23:51:04,403 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 208.44ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:04,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 269 Unknown, 0 Unchecked, 1.64ms Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 208.44ms Time] [2021-11-03 23:51:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 23:51:04,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 23:51:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 79 states have internal predecessors, (89), 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 23:51:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2021-11-03 23:51:04,411 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 34 [2021-11-03 23:51:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:04,412 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2021-11-03 23:51:04,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 23:51:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2021-11-03 23:51:04,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 23:51:04,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:04,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:51:04,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 23:51:04,414 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:04,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash 268760160, now seen corresponding path program 1 times [2021-11-03 23:51:04,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:04,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776184178] [2021-11-03 23:51:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:04,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:04,544 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 23:51:04,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:04,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776184178] [2021-11-03 23:51:04,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776184178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:04,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:04,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-03 23:51:04,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050958993] [2021-11-03 23:51:04,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:04,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 23:51:04,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:04,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 23:51:04,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 23:51:04,547 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 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 23:51:04,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:04,840 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2021-11-03 23:51:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 23:51:04,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 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 43 [2021-11-03 23:51:04,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:04,841 INFO L225 Difference]: With dead ends: 125 [2021-11-03 23:51:04,842 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 23:51:04,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 101.90ms TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-11-03 23:51:04,843 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 359 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 165.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.45ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 200.76ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:04,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 0 Invalid, 325 Unknown, 0 Unchecked, 2.45ms Time], IncrementalHoareTripleChecker [5 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 200.76ms Time] [2021-11-03 23:51:04,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 23:51:04,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 23:51:04,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 79 states have internal predecessors, (88), 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 23:51:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2021-11-03 23:51:04,851 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 43 [2021-11-03 23:51:04,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:04,851 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2021-11-03 23:51:04,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 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 23:51:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2021-11-03 23:51:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 23:51:04,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:04,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:51:04,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 23:51:04,855 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:04,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:04,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1742888769, now seen corresponding path program 1 times [2021-11-03 23:51:04,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:04,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829395866] [2021-11-03 23:51:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:04,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:05,076 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 23:51:05,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:05,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829395866] [2021-11-03 23:51:05,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829395866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:05,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:05,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-03 23:51:05,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171546045] [2021-11-03 23:51:05,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:05,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 23:51:05,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:05,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 23:51:05,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-03 23:51:05,080 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 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 23:51:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:05,503 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2021-11-03 23:51:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 23:51:05,504 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 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 48 [2021-11-03 23:51:05,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:05,505 INFO L225 Difference]: With dead ends: 110 [2021-11-03 23:51:05,505 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 23:51:05,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 204.35ms TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-11-03 23:51:05,509 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 450 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 225.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.08ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 273.83ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:05,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 0 Invalid, 435 Unknown, 0 Unchecked, 4.08ms Time], IncrementalHoareTripleChecker [11 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 273.83ms Time] [2021-11-03 23:51:05,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 23:51:05,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 23:51:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.16) internal successors, (87), 79 states have internal predecessors, (87), 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 23:51:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2021-11-03 23:51:05,516 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 48 [2021-11-03 23:51:05,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:05,516 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2021-11-03 23:51:05,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 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 23:51:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2021-11-03 23:51:05,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 23:51:05,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:05,518 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, 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 23:51:05,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 23:51:05,518 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:05,519 INFO L85 PathProgramCache]: Analyzing trace with hash -300657421, now seen corresponding path program 1 times [2021-11-03 23:51:05,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:05,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874636127] [2021-11-03 23:51:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:05,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:05,689 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 23:51:05,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:05,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874636127] [2021-11-03 23:51:05,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874636127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:05,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:05,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-03 23:51:05,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810511394] [2021-11-03 23:51:05,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:05,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 23:51:05,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 23:51:05,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-03 23:51:05,694 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 23:51:06,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:06,104 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2021-11-03 23:51:06,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 23:51:06,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 55 [2021-11-03 23:51:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:06,105 INFO L225 Difference]: With dead ends: 129 [2021-11-03 23:51:06,105 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 23:51:06,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 181.09ms TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2021-11-03 23:51:06,106 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 399 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.42ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 263.86ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:06,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 0 Invalid, 494 Unknown, 0 Unchecked, 3.42ms Time], IncrementalHoareTripleChecker [49 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 263.86ms Time] [2021-11-03 23:51:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 23:51:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 23:51:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.1066666666666667) internal successors, (83), 79 states have internal predecessors, (83), 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 23:51:06,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2021-11-03 23:51:06,113 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 55 [2021-11-03 23:51:06,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:06,113 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2021-11-03 23:51:06,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 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 23:51:06,113 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2021-11-03 23:51:06,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 23:51:06,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:51:06,114 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, 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 23:51:06,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 23:51:06,114 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 23:51:06,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:51:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash -168490957, now seen corresponding path program 1 times [2021-11-03 23:51:06,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:51:06,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169921689] [2021-11-03 23:51:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:51:06,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:51:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:51:06,515 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 23:51:06,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:51:06,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169921689] [2021-11-03 23:51:06,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169921689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:51:06,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:51:06,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-03 23:51:06,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966678966] [2021-11-03 23:51:06,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:51:06,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 23:51:06,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:51:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 23:51:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-03 23:51:06,519 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 23:51:06,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:51:06,598 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2021-11-03 23:51:06,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 23:51:06,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-11-03 23:51:06,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:51:06,598 INFO L225 Difference]: With dead ends: 80 [2021-11-03 23:51:06,599 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 23:51:06,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 71.81ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-03 23:51:06,600 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.25ms IncrementalHoareTripleChecker+Time [2021-11-03 23:51:06,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 30.25ms Time] [2021-11-03 23:51:06,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 23:51:06,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 23:51:06,601 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 23:51:06,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 23:51:06,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-11-03 23:51:06,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:51:06,602 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 23:51:06,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 23:51:06,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 23:51:06,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 23:51:06,605 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-03 23:51:06,606 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-03 23:51:06,606 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-03 23:51:06,606 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-03 23:51:06,607 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-03 23:51:06,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 23:51:06,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 23:51:06,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 23:51:06,716 INFO L858 garLoopResultBuilder]: For program point L8095-4(lines 8095 8108) no Hoare annotation was computed. [2021-11-03 23:51:06,717 INFO L854 garLoopResultBuilder]: At program point L8095-3(lines 8095 8108) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not .cse0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2021-11-03 23:51:06,717 INFO L858 garLoopResultBuilder]: For program point L8095-2(lines 8095 8108) no Hoare annotation was computed. [2021-11-03 23:51:06,717 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,717 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 23:51:06,718 INFO L854 garLoopResultBuilder]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2021-11-03 23:51:06,718 INFO L858 garLoopResultBuilder]: For program point L8097(lines 8097 8101) no Hoare annotation was computed. [2021-11-03 23:51:06,718 INFO L854 garLoopResultBuilder]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2021-11-03 23:51:06,718 INFO L861 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-11-03 23:51:06,718 INFO L858 garLoopResultBuilder]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2021-11-03 23:51:06,718 INFO L858 garLoopResultBuilder]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2021-11-03 23:51:06,719 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-03 23:51:06,719 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-03 23:51:06,719 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-11-03 23:51:06,719 INFO L858 garLoopResultBuilder]: For program point L222-3(lines 7102 7112) no Hoare annotation was computed. [2021-11-03 23:51:06,719 INFO L858 garLoopResultBuilder]: For program point L222-4(lines 222 224) no Hoare annotation was computed. [2021-11-03 23:51:06,719 INFO L858 garLoopResultBuilder]: For program point L7589(lines 7589 7597) no Hoare annotation was computed. [2021-11-03 23:51:06,719 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 23:51:06,720 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,720 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,720 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,720 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,720 INFO L858 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,720 INFO L858 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,721 INFO L858 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,721 INFO L858 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,721 INFO L858 garLoopResultBuilder]: For program point L223-12(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,721 INFO L858 garLoopResultBuilder]: For program point L223-13(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,721 INFO L858 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-11-03 23:51:06,721 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,722 INFO L858 garLoopResultBuilder]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2021-11-03 23:51:06,722 INFO L858 garLoopResultBuilder]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2021-11-03 23:51:06,722 INFO L858 garLoopResultBuilder]: For program point L8103(lines 8103 8107) no Hoare annotation was computed. [2021-11-03 23:51:06,722 INFO L854 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2021-11-03 23:51:06,722 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,722 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 23:51:06,723 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,723 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,723 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,723 INFO L858 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,723 INFO L858 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,723 INFO L858 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,723 INFO L858 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,724 INFO L858 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,724 INFO L858 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-11-03 23:51:06,724 INFO L854 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2021-11-03 23:51:06,724 INFO L858 garLoopResultBuilder]: For program point L8915(lines 8915 8916) no Hoare annotation was computed. [2021-11-03 23:51:06,724 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,724 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,725 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,725 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,725 INFO L858 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,725 INFO L858 garLoopResultBuilder]: For program point L8915-2(lines 8915 8916) no Hoare annotation was computed. [2021-11-03 23:51:06,725 INFO L858 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,725 INFO L858 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,725 INFO L858 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,726 INFO L861 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: true [2021-11-03 23:51:06,726 INFO L858 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,726 INFO L854 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-11-03 23:51:06,726 INFO L854 garLoopResultBuilder]: At program point L261-2(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2021-11-03 23:51:06,726 INFO L858 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-11-03 23:51:06,726 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,727 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,727 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,727 INFO L854 garLoopResultBuilder]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not .cse0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2021-11-03 23:51:06,727 INFO L858 garLoopResultBuilder]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,727 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,727 INFO L858 garLoopResultBuilder]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,728 INFO L858 garLoopResultBuilder]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,728 INFO L858 garLoopResultBuilder]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2021-11-03 23:51:06,728 INFO L854 garLoopResultBuilder]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: false [2021-11-03 23:51:06,728 INFO L858 garLoopResultBuilder]: For program point L7579(line 7579) no Hoare annotation was computed. [2021-11-03 23:51:06,728 INFO L858 garLoopResultBuilder]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2021-11-03 23:51:06,728 INFO L858 garLoopResultBuilder]: For program point L7579-2(line 7579) no Hoare annotation was computed. [2021-11-03 23:51:06,729 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 23:51:06,729 INFO L858 garLoopResultBuilder]: For program point L7580(lines 7580 7588) no Hoare annotation was computed. [2021-11-03 23:51:06,729 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-03 23:51:06,729 INFO L854 garLoopResultBuilder]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2021-11-03 23:51:06,729 INFO L858 garLoopResultBuilder]: For program point L8918(lines 8918 8923) no Hoare annotation was computed. [2021-11-03 23:51:06,729 INFO L854 garLoopResultBuilder]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2021-11-03 23:51:06,730 INFO L854 garLoopResultBuilder]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2021-11-03 23:51:06,730 INFO L854 garLoopResultBuilder]: At program point L8110(lines 8078 8111) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not .cse0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2021-11-03 23:51:06,730 INFO L854 garLoopResultBuilder]: At program point L7598(lines 7577 7599) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0))) (or (and (not .cse0) (not (= |ULTIMATE.start_bounded_malloc_#res.base| 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.offset 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res.base| 0)) (not (= ULTIMATE.start_aws_string_eq_c_str_~str.base 0)) (= ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0.base 0) (not (= |ULTIMATE.start_ensure_string_is_allocated_#res.base| 0)) (not (= ULTIMATE.start_ensure_string_is_allocated_~str~0.base 0))) (and .cse0 (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)))) [2021-11-03 23:51:06,730 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-11-03 23:51:06,730 INFO L854 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.base 0) (= ULTIMATE.start_aws_string_eq_c_str_harness_~str~3.offset 0)) [2021-11-03 23:51:06,731 INFO L854 garLoopResultBuilder]: At program point L266-2(line 266) the Hoare annotation is: false [2021-11-03 23:51:06,734 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 23:51:06,736 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 23:51:06,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 11:51:06 BoogieIcfgContainer [2021-11-03 23:51:06,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 23:51:06,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 23:51:06,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 23:51:06,753 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 23:51:06,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:51:02" (3/4) ... [2021-11-03 23:51:06,757 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 23:51:06,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2021-11-03 23:51:06,771 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-03 23:51:06,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 23:51:06,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 23:51:06,795 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) [2021-11-03 23:51:06,796 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) [2021-11-03 23:51:06,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) [2021-11-03 23:51:06,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) [2021-11-03 23:51:06,938 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-03 23:51:06,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 23:51:06,939 INFO L158 Benchmark]: Toolchain (without parser) took 7996.94ms. Allocated memory was 117.4MB in the beginning and 245.4MB in the end (delta: 127.9MB). Free memory was 72.2MB in the beginning and 98.0MB in the end (delta: -25.7MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. [2021-11-03 23:51:06,939 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 26.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 23:51:06,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2252.75ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 72.0MB in the beginning and 83.9MB in the end (delta: -11.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2021-11-03 23:51:06,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 188.23ms. Allocated memory is still 146.8MB. Free memory was 83.9MB in the beginning and 74.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-03 23:51:06,940 INFO L158 Benchmark]: Boogie Preprocessor took 94.89ms. Allocated memory is still 146.8MB. Free memory was 74.7MB in the beginning and 70.0MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-03 23:51:06,941 INFO L158 Benchmark]: RCFGBuilder took 681.00ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 70.0MB in the beginning and 133.2MB in the end (delta: -63.2MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2021-11-03 23:51:06,941 INFO L158 Benchmark]: TraceAbstraction took 4588.57ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 132.2MB in the beginning and 171.9MB in the end (delta: -39.7MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2021-11-03 23:51:06,941 INFO L158 Benchmark]: Witness Printer took 185.53ms. Allocated memory is still 245.4MB. Free memory was 171.9MB in the beginning and 98.0MB in the end (delta: 74.0MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2021-11-03 23:51:06,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 26.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2252.75ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 72.0MB in the beginning and 83.9MB in the end (delta: -11.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 188.23ms. Allocated memory is still 146.8MB. Free memory was 83.9MB in the beginning and 74.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.89ms. Allocated memory is still 146.8MB. Free memory was 74.7MB in the beginning and 70.0MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 681.00ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 70.0MB in the beginning and 133.2MB in the end (delta: -63.2MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4588.57ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 132.2MB in the beginning and 171.9MB in the end (delta: -39.7MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 185.53ms. Allocated memory is still 245.4MB. Free memory was 171.9MB in the beginning and 98.0MB in the end (delta: 74.0MB). Peak memory consumption was 73.4MB. 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 - 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 - 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, 86 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4509.85ms, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 30.98ms, AutomataDifference: 2311.89ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 108.38ms, InitialAbstractionConstructionTime: 12.97ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1696 SdHoareTripleChecker+Valid, 1595.53ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1696 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1274.15ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1249 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2128 IncrementalHoareTripleChecker+Invalid, 2198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 0 mSDtfsCounter, 2128 mSolverCounterSat, 22.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 695.47ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 65.35ms AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 19 LocationsWithAnnotation, 19 PreInvPairs, 32 NumberOfFragments, 197 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 17.83ms HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 82.42ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 56.42ms SsaConstructionTime, 472.05ms SatisfiabilityAnalysisTime, 1166.97ms InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 809 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 5 specifications checked. All of them hold - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: str == 0 && str == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: str == 0 && str == 0 - InvariantResult [Line: 8078]: Loop Invariant Derived loop invariant: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: str == 0 && str == 0 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8095]: Loop Invariant Derived loop invariant: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) - InvariantResult [Line: 7577]: Loop Invariant Derived loop invariant: (((((((!(str == 0) && !(\result == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) && c_str == 0) && !(\result == 0)) && !(str == 0)) || (str == 0 && str == 0) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str == 0 && str == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-03 23:51:06,991 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