./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 5b36d44f 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-5b36d44 [2021-11-07 10:16:49,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:16:49,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:16:49,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:16:49,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:16:49,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:16:49,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:16:49,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:16:49,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:16:49,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:16:49,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:16:49,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:16:49,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:16:49,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:16:49,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:16:49,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:16:49,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:16:49,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:16:49,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:16:49,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:16:49,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:16:49,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:16:49,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:16:49,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:16:49,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:16:49,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:16:49,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:16:49,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:16:49,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:16:49,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:16:49,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:16:49,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:16:49,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:16:49,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:16:49,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:16:49,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:16:49,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:16:49,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:16:49,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:16:49,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:16:49,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:16:49,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:16:49,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:16:49,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:16:49,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:16:49,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:16:49,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:16:49,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:16:49,584 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:16:49,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:16:49,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:16:49,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:16:49,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:16:49,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:16:49,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:16:49,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:16:49,587 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:16:49,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:16:49,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:16:49,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:16:49,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:16:49,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:16:49,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:16:49,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:16:49,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:16:49,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:16:49,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:16:49,589 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:16:49,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:16:49,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:16:49,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:16:49,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-11-07 10:16:49,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:16:49,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:16:49,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:16:49,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:16:49,864 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:16:49,865 INFO L432 ainManager$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 [2021-11-07 10:16:49,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937d76af1/b70fdccc79964932a77ec851d4946467/FLAG49a1c681e [2021-11-07 10:16:50,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:16:50,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-11-07 10:16:50,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937d76af1/b70fdccc79964932a77ec851d4946467/FLAG49a1c681e [2021-11-07 10:16:50,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937d76af1/b70fdccc79964932a77ec851d4946467 [2021-11-07 10:16:50,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:16:50,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:16:50,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:16:50,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:16:50,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:16:50,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:16:50" (1/1) ... [2021-11-07 10:16:50,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44cd60ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:50, skipping insertion in model container [2021-11-07 10:16:50,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:16:50" (1/1) ... [2021-11-07 10:16:50,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:16:50,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:16:51,154 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] [2021-11-07 10:16:51,162 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] [2021-11-07 10:16:51,180 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:16:51,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:16:51,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:51,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,155 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:16:52,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:16:52,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:16:52,162 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:16:52,165 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:16:52,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:16:52,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:16:52,168 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:16:52,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:16:52,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:16:52,261 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:16:52,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:16:52,449 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:16:52,473 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] [2021-11-07 10:16:52,473 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] [2021-11-07 10:16:52,476 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:16:52,477 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:16:52,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:16:52,662 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:16:52,663 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:16:52,664 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:16:52,664 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:16:52,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:16:52,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:16:52,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:16:52,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:16:52,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:16:52,681 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:16:52,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:16:52,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:16:52,901 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:16:52,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52 WrapperNode [2021-11-07 10:16:52,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:16:52,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:16:52,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:16:52,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:16:52,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:52,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:16:53,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:16:53,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:16:53,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:16:53,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:16:53,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:16:53,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:16:53,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:16:53,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (1/1) ... [2021-11-07 10:16:53,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:16:53,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:16:53,211 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) [2021-11-07 10:16:53,234 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 [2021-11-07 10:16:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:16:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:16:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:16:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:16:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:16:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:16:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:16:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:16:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:16:53,951 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:16:53,951 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2021-11-07 10:16:53,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:16:53 BoogieIcfgContainer [2021-11-07 10:16:53,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:16:53,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:16:53,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:16:53,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:16:53,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:16:50" (1/3) ... [2021-11-07 10:16:53,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d99041e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:16:53, skipping insertion in model container [2021-11-07 10:16:53,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:16:52" (2/3) ... [2021-11-07 10:16:53,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d99041e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:16:53, skipping insertion in model container [2021-11-07 10:16:53,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:16:53" (3/3) ... [2021-11-07 10:16:53,961 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2021-11-07 10:16:53,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:16:53,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 10:16:54,013 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:16:54,025 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 [2021-11-07 10:16:54,026 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 10:16:54,066 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) [2021-11-07 10:16:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 10:16:54,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:54,073 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] [2021-11-07 10:16:54,074 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)] === [2021-11-07 10:16:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:54,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1267490943, now seen corresponding path program 1 times [2021-11-07 10:16:54,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:54,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953089532] [2021-11-07 10:16:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:54,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:54,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:54,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953089532] [2021-11-07 10:16:54,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953089532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:54,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:54,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:16:54,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196331475] [2021-11-07 10:16:54,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:54,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:16:54,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:54,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:16:54,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:16:54,464 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) [2021-11-07 10:16:54,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:54,495 INFO L93 Difference]: Finished difference Result 166 states and 222 transitions. [2021-11-07 10:16:54,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:16:54,497 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 [2021-11-07 10:16:54,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:54,503 INFO L225 Difference]: With dead ends: 166 [2021-11-07 10:16:54,504 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:16:54,507 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 [2021-11-07 10:16:54,512 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:54,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 2.77ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:16:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:16:54,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:16:54,549 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) [2021-11-07 10:16:54,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2021-11-07 10:16:54,555 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 22 [2021-11-07 10:16:54,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:54,555 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2021-11-07 10:16:54,555 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) [2021-11-07 10:16:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2021-11-07 10:16:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 10:16:54,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:54,562 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] [2021-11-07 10:16:54,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:16:54,563 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)] === [2021-11-07 10:16:54,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1009325505, now seen corresponding path program 1 times [2021-11-07 10:16:54,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:54,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192134172] [2021-11-07 10:16:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:54,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:54,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:54,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192134172] [2021-11-07 10:16:54,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192134172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:54,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:54,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:16:54,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496295020] [2021-11-07 10:16:54,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:54,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:16:54,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:54,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:16:54,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:16:54,733 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) [2021-11-07 10:16:54,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:54,762 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2021-11-07 10:16:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:16:54,763 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 [2021-11-07 10:16:54,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:54,764 INFO L225 Difference]: With dead ends: 144 [2021-11-07 10:16:54,764 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:16:54,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.99ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:16:54,766 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 34 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.98ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:54,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 3.52ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 12.98ms Time] [2021-11-07 10:16:54,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:16:54,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:16:54,772 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) [2021-11-07 10:16:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2021-11-07 10:16:54,773 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 22 [2021-11-07 10:16:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:54,774 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-11-07 10:16:54,774 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) [2021-11-07 10:16:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2021-11-07 10:16:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 10:16:54,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:54,775 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] [2021-11-07 10:16:54,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:16:54,776 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)] === [2021-11-07 10:16:54,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2090456739, now seen corresponding path program 1 times [2021-11-07 10:16:54,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:54,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592381637] [2021-11-07 10:16:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:54,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:54,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:54,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592381637] [2021-11-07 10:16:54,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592381637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:54,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:54,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 10:16:54,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62869237] [2021-11-07 10:16:54,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:54,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 10:16:54,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 10:16:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:16:54,912 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) [2021-11-07 10:16:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:55,083 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2021-11-07 10:16:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:16:55,084 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 [2021-11-07 10:16:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:55,085 INFO L225 Difference]: With dead ends: 110 [2021-11-07 10:16:55,085 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:16:55,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 126.93ms TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-11-07 10:16:55,086 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 426 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.84ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.41ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:55,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 227 Invalid, 52 Unknown, 0 Unchecked, 4.84ms Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 56.41ms Time] [2021-11-07 10:16:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:16:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:16:55,107 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) [2021-11-07 10:16:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2021-11-07 10:16:55,131 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 33 [2021-11-07 10:16:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:55,132 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2021-11-07 10:16:55,132 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) [2021-11-07 10:16:55,132 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2021-11-07 10:16:55,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 10:16:55,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:55,133 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] [2021-11-07 10:16:55,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:16:55,133 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)] === [2021-11-07 10:16:55,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:55,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1931203523, now seen corresponding path program 1 times [2021-11-07 10:16:55,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:55,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983226807] [2021-11-07 10:16:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:55,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:55,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:55,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983226807] [2021-11-07 10:16:55,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983226807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:55,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:55,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:16:55,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86611781] [2021-11-07 10:16:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:55,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:16:55,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:55,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:16:55,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:16:55,270 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) [2021-11-07 10:16:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:55,311 INFO L93 Difference]: Finished difference Result 132 states and 150 transitions. [2021-11-07 10:16:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:16:55,311 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 [2021-11-07 10:16:55,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:55,312 INFO L225 Difference]: With dead ends: 132 [2021-11-07 10:16:55,312 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:16:55,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.28ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:16:55,315 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 22 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.59ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:55,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 260 Invalid, 9 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 21.59ms Time] [2021-11-07 10:16:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:16:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:16:55,322 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) [2021-11-07 10:16:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2021-11-07 10:16:55,323 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 34 [2021-11-07 10:16:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:55,323 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2021-11-07 10:16:55,323 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) [2021-11-07 10:16:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2021-11-07 10:16:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 10:16:55,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:55,325 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] [2021-11-07 10:16:55,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 10:16:55,325 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)] === [2021-11-07 10:16:55,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash 268760160, now seen corresponding path program 1 times [2021-11-07 10:16:55,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:55,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042674491] [2021-11-07 10:16:55,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:55,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:55,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:55,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:55,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042674491] [2021-11-07 10:16:55,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042674491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:55,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:55,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 10:16:55,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050148580] [2021-11-07 10:16:55,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:55,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 10:16:55,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:55,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 10:16:55,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:16:55,504 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) [2021-11-07 10:16:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:55,644 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2021-11-07 10:16:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:16:55,644 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 [2021-11-07 10:16:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:55,648 INFO L225 Difference]: With dead ends: 125 [2021-11-07 10:16:55,648 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:16:55,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 104.50ms TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-11-07 10:16:55,653 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 359 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.59ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.12ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:55,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 273 Invalid, 52 Unknown, 0 Unchecked, 1.59ms Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 51.12ms Time] [2021-11-07 10:16:55,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:16:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:16:55,664 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) [2021-11-07 10:16:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2021-11-07 10:16:55,664 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 43 [2021-11-07 10:16:55,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:55,665 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2021-11-07 10:16:55,665 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) [2021-11-07 10:16:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2021-11-07 10:16:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 10:16:55,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:55,666 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] [2021-11-07 10:16:55,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 10:16:55,666 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)] === [2021-11-07 10:16:55,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1742888769, now seen corresponding path program 1 times [2021-11-07 10:16:55,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:55,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868389201] [2021-11-07 10:16:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:55,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:55,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:55,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868389201] [2021-11-07 10:16:55,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868389201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:55,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:55,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 10:16:55,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658435397] [2021-11-07 10:16:55,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:55,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 10:16:55,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 10:16:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:16:55,896 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) [2021-11-07 10:16:56,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:56,126 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2021-11-07 10:16:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 10:16:56,128 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 [2021-11-07 10:16:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:56,129 INFO L225 Difference]: With dead ends: 110 [2021-11-07 10:16:56,129 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:16:56,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 214.35ms TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-11-07 10:16:56,130 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 450 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.78ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.30ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:56,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 335 Invalid, 100 Unknown, 0 Unchecked, 1.78ms Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 78.30ms Time] [2021-11-07 10:16:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:16:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:16:56,140 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) [2021-11-07 10:16:56,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2021-11-07 10:16:56,142 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 48 [2021-11-07 10:16:56,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:56,143 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2021-11-07 10:16:56,144 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) [2021-11-07 10:16:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2021-11-07 10:16:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 10:16:56,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:56,149 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] [2021-11-07 10:16:56,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 10:16:56,150 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)] === [2021-11-07 10:16:56,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:56,151 INFO L85 PathProgramCache]: Analyzing trace with hash -300657421, now seen corresponding path program 1 times [2021-11-07 10:16:56,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:56,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111032889] [2021-11-07 10:16:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:56,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:56,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:56,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:56,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111032889] [2021-11-07 10:16:56,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111032889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:56,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:56,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 10:16:56,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915252672] [2021-11-07 10:16:56,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:56,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 10:16:56,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 10:16:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:16:56,343 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) [2021-11-07 10:16:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:56,587 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2021-11-07 10:16:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 10:16:56,587 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 [2021-11-07 10:16:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:56,588 INFO L225 Difference]: With dead ends: 129 [2021-11-07 10:16:56,588 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:16:56,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 181.40ms TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2021-11-07 10:16:56,589 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 399 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.95ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.78ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:56,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 349 Invalid, 145 Unknown, 0 Unchecked, 1.95ms Time], IncrementalHoareTripleChecker [49 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 100.78ms Time] [2021-11-07 10:16:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:16:56,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:16:56,594 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) [2021-11-07 10:16:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2021-11-07 10:16:56,594 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 55 [2021-11-07 10:16:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:56,595 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2021-11-07 10:16:56,595 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) [2021-11-07 10:16:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2021-11-07 10:16:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 10:16:56,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:56,596 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] [2021-11-07 10:16:56,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 10:16:56,596 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)] === [2021-11-07 10:16:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash -168490957, now seen corresponding path program 1 times [2021-11-07 10:16:56,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:56,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073044359] [2021-11-07 10:16:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:56,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:56,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:56,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073044359] [2021-11-07 10:16:56,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073044359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:56,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:56,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:16:56,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990598413] [2021-11-07 10:16:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:56,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:16:56,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:56,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:16:56,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:16:56,993 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) [2021-11-07 10:16:57,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:57,045 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2021-11-07 10:16:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:16:57,045 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 [2021-11-07 10:16:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:57,045 INFO L225 Difference]: With dead ends: 80 [2021-11-07 10:16:57,045 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 10:16:57,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 77.50ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:16:57,046 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.49ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:57,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.13ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 8.49ms Time] [2021-11-07 10:16:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 10:16:57,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 10:16:57,047 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) [2021-11-07 10:16:57,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 10:16:57,048 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-11-07 10:16:57,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:57,048 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 10:16:57,048 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) [2021-11-07 10:16:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 10:16:57,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 10:16:57,051 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-07 10:16:57,051 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-07 10:16:57,051 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-07 10:16:57,052 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-07 10:16:57,052 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-07 10:16:57,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 10:16:57,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 10:16:57,158 INFO L858 garLoopResultBuilder]: For program point L8095-4(lines 8095 8108) no Hoare annotation was computed. [2021-11-07 10:16:57,158 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)))) [2021-11-07 10:16:57,158 INFO L858 garLoopResultBuilder]: For program point L8095-2(lines 8095 8108) no Hoare annotation was computed. [2021-11-07 10:16:57,159 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,159 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 10:16:57,159 INFO L854 garLoopResultBuilder]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2021-11-07 10:16:57,159 INFO L858 garLoopResultBuilder]: For program point L8097(lines 8097 8101) no Hoare annotation was computed. [2021-11-07 10:16:57,159 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)) [2021-11-07 10:16:57,160 INFO L861 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-11-07 10:16:57,160 INFO L858 garLoopResultBuilder]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2021-11-07 10:16:57,160 INFO L858 garLoopResultBuilder]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2021-11-07 10:16:57,160 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-07 10:16:57,160 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-07 10:16:57,160 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-11-07 10:16:57,161 INFO L858 garLoopResultBuilder]: For program point L222-3(lines 7102 7112) no Hoare annotation was computed. [2021-11-07 10:16:57,161 INFO L858 garLoopResultBuilder]: For program point L222-4(lines 222 224) no Hoare annotation was computed. [2021-11-07 10:16:57,161 INFO L858 garLoopResultBuilder]: For program point L7589(lines 7589 7597) no Hoare annotation was computed. [2021-11-07 10:16:57,161 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 10:16:57,161 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,161 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,162 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,162 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,162 INFO L858 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,162 INFO L858 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,162 INFO L858 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,162 INFO L858 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,163 INFO L858 garLoopResultBuilder]: For program point L223-12(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,163 INFO L858 garLoopResultBuilder]: For program point L223-13(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,163 INFO L858 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-11-07 10:16:57,163 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,163 INFO L858 garLoopResultBuilder]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2021-11-07 10:16:57,163 INFO L858 garLoopResultBuilder]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2021-11-07 10:16:57,164 INFO L858 garLoopResultBuilder]: For program point L8103(lines 8103 8107) no Hoare annotation was computed. [2021-11-07 10:16:57,164 INFO L854 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2021-11-07 10:16:57,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,164 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 10:16:57,164 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,164 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,165 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,165 INFO L858 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,165 INFO L858 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,165 INFO L858 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,165 INFO L858 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,165 INFO L858 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,166 INFO L858 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:16:57,166 INFO L854 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2021-11-07 10:16:57,166 INFO L858 garLoopResultBuilder]: For program point L8915(lines 8915 8916) no Hoare annotation was computed. [2021-11-07 10:16:57,166 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,166 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,167 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,167 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,167 INFO L858 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,167 INFO L858 garLoopResultBuilder]: For program point L8915-2(lines 8915 8916) no Hoare annotation was computed. [2021-11-07 10:16:57,167 INFO L858 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,167 INFO L858 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,168 INFO L858 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,168 INFO L861 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: true [2021-11-07 10:16:57,168 INFO L858 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,168 INFO L854 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-11-07 10:16:57,168 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)) [2021-11-07 10:16:57,168 INFO L858 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-11-07 10:16:57,168 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,169 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,169 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,169 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)))) [2021-11-07 10:16:57,169 INFO L858 garLoopResultBuilder]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,169 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,169 INFO L858 garLoopResultBuilder]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,170 INFO L858 garLoopResultBuilder]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,170 INFO L858 garLoopResultBuilder]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2021-11-07 10:16:57,170 INFO L854 garLoopResultBuilder]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: false [2021-11-07 10:16:57,170 INFO L858 garLoopResultBuilder]: For program point L7579(line 7579) no Hoare annotation was computed. [2021-11-07 10:16:57,170 INFO L858 garLoopResultBuilder]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2021-11-07 10:16:57,170 INFO L858 garLoopResultBuilder]: For program point L7579-2(line 7579) no Hoare annotation was computed. [2021-11-07 10:16:57,170 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 10:16:57,171 INFO L858 garLoopResultBuilder]: For program point L7580(lines 7580 7588) no Hoare annotation was computed. [2021-11-07 10:16:57,171 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 10:16:57,171 INFO L854 garLoopResultBuilder]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2021-11-07 10:16:57,171 INFO L858 garLoopResultBuilder]: For program point L8918(lines 8918 8923) no Hoare annotation was computed. [2021-11-07 10:16:57,171 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)) [2021-11-07 10:16:57,171 INFO L854 garLoopResultBuilder]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2021-11-07 10:16:57,172 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)))) [2021-11-07 10:16:57,172 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)))) [2021-11-07 10:16:57,172 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-11-07 10:16:57,172 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)) [2021-11-07 10:16:57,172 INFO L854 garLoopResultBuilder]: At program point L266-2(line 266) the Hoare annotation is: false [2021-11-07 10:16:57,175 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:16:57,177 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 10:16:57,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:16:57 BoogieIcfgContainer [2021-11-07 10:16:57,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 10:16:57,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 10:16:57,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 10:16:57,206 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 10:16:57,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:16:53" (3/4) ... [2021-11-07 10:16:57,209 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 10:16:57,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2021-11-07 10:16:57,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-07 10:16:57,222 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 10:16:57,223 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 10:16:57,243 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) [2021-11-07 10:16:57,244 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) [2021-11-07 10:16:57,245 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) [2021-11-07 10:16:57,245 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) [2021-11-07 10:16:57,383 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-07 10:16:57,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 10:16:57,384 INFO L158 Benchmark]: Toolchain (without parser) took 6629.02ms. Allocated memory was 86.0MB in the beginning and 251.7MB in the end (delta: 165.7MB). Free memory was 44.8MB in the beginning and 180.7MB in the end (delta: -135.8MB). Peak memory consumption was 124.1MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,385 INFO L158 Benchmark]: CDTParser took 7.57ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 58.1MB in the end (delta: -15.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2143.71ms. Allocated memory was 86.0MB in the beginning and 199.2MB in the end (delta: 113.2MB). Free memory was 44.6MB in the beginning and 150.2MB in the end (delta: -105.6MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 171.95ms. Allocated memory is still 199.2MB. Free memory was 150.2MB in the beginning and 140.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,385 INFO L158 Benchmark]: Boogie Preprocessor took 100.61ms. Allocated memory is still 199.2MB. Free memory was 140.8MB in the beginning and 135.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,386 INFO L158 Benchmark]: RCFGBuilder took 776.78ms. Allocated memory is still 199.2MB. Free memory was 135.5MB in the beginning and 94.6MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,386 INFO L158 Benchmark]: TraceAbstraction took 3250.19ms. Allocated memory was 199.2MB in the beginning and 251.7MB in the end (delta: 52.4MB). Free memory was 93.6MB in the beginning and 142.4MB in the end (delta: -48.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,386 INFO L158 Benchmark]: Witness Printer took 177.94ms. Allocated memory is still 251.7MB. Free memory was 142.4MB in the beginning and 180.7MB in the end (delta: -38.2MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2021-11-07 10:16:57,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 7.57ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 58.1MB in the end (delta: -15.0MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2143.71ms. Allocated memory was 86.0MB in the beginning and 199.2MB in the end (delta: 113.2MB). Free memory was 44.6MB in the beginning and 150.2MB in the end (delta: -105.6MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 171.95ms. Allocated memory is still 199.2MB. Free memory was 150.2MB in the beginning and 140.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.61ms. Allocated memory is still 199.2MB. Free memory was 140.8MB in the beginning and 135.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 776.78ms. Allocated memory is still 199.2MB. Free memory was 135.5MB in the beginning and 94.6MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3250.19ms. Allocated memory was 199.2MB in the beginning and 251.7MB in the end (delta: 52.4MB). Free memory was 93.6MB in the beginning and 142.4MB in the end (delta: -48.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 177.94ms. Allocated memory is still 251.7MB. Free memory was 142.4MB in the beginning and 180.7MB in the end (delta: -38.2MB). Peak memory consumption was 56.6MB. 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: 3164.97ms, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 27.42ms, AutomataDifference: 1029.58ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 104.93ms, InitialAbstractionConstructionTime: 34.43ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1696 SdHoareTripleChecker+Valid, 329.68ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1696 mSDsluCounter, 1817 SdHoareTripleChecker+Invalid, 257.58ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1245 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 572 mSDtfsCounter, 307 mSolverCounterSat, 18.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 725.98ms 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: 106.27ms AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 19 LocationsWithAnnotation, 19 PreInvPairs, 32 NumberOfFragments, 197 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 6.48ms HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 88.02ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 47.83ms SsaConstructionTime, 472.65ms SatisfiabilityAnalysisTime, 1049.48ms InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 304 ConstructedInterpolants, 0 QuantifiedInterpolants, 828 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! [2021-11-07 10:16:57,430 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