/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 01:26:38,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 01:26:38,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 01:26:38,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 01:26:38,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 01:26:38,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 01:26:38,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 01:26:38,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 01:26:38,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 01:26:38,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 01:26:38,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 01:26:38,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 01:26:38,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 01:26:38,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 01:26:38,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 01:26:38,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 01:26:38,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 01:26:38,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 01:26:38,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 01:26:38,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 01:26:38,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 01:26:38,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 01:26:38,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 01:26:38,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 01:26:38,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 01:26:38,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 01:26:38,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 01:26:38,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 01:26:38,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 01:26:38,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 01:26:38,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 01:26:38,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 01:26:38,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 01:26:38,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 01:26:38,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 01:26:38,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 01:26:38,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 01:26:38,689 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 01:26:38,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 01:26:38,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 01:26:38,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 01:26:38,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 01:26:38,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 01:26:38,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 01:26:38,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 01:26:38,692 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 01:26:38,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 01:26:38,693 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 01:26:38,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 01:26:38,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 01:26:38,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 01:26:38,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 01:26:38,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 01:26:38,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 01:26:38,694 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 01:26:38,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 01:26:38,694 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 01:26:38,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 01:26:38,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 01:26:38,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 01:26:38,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 01:26:38,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:26:38,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 01:26:38,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 01:26:38,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 01:26:38,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 01:26:38,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 01:26:38,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 01:26:38,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 01:26:38,697 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 01:26:38,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 01:26:38,697 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 01:26:38,697 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 01:26:38,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 01:26:38,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 01:26:38,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 01:26:38,957 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 01:26:38,958 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 01:26:38,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2023-04-02 01:26:40,129 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 01:26:40,307 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 01:26:40,308 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2023-04-02 01:26:40,317 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed519ed04/63e7def3e8f84ec78846d75565d04022/FLAG2f53f2ec8 [2023-04-02 01:26:40,333 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed519ed04/63e7def3e8f84ec78846d75565d04022 [2023-04-02 01:26:40,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 01:26:40,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 01:26:40,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 01:26:40,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 01:26:40,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 01:26:40,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2721a9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40, skipping insertion in model container [2023-04-02 01:26:40,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 01:26:40,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 01:26:40,539 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2023-04-02 01:26:40,547 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2023-04-02 01:26:40,555 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2023-04-02 01:26:40,558 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2023-04-02 01:26:40,559 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2023-04-02 01:26:40,560 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2023-04-02 01:26:40,561 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2023-04-02 01:26:40,563 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2023-04-02 01:26:40,564 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2023-04-02 01:26:40,566 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2023-04-02 01:26:40,567 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2023-04-02 01:26:40,571 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2023-04-02 01:26:40,576 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2023-04-02 01:26:40,578 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2023-04-02 01:26:40,579 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2023-04-02 01:26:40,580 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2023-04-02 01:26:40,581 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2023-04-02 01:26:40,582 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2023-04-02 01:26:40,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:26:40,596 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 01:26:40,607 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2023-04-02 01:26:40,612 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2023-04-02 01:26:40,613 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2023-04-02 01:26:40,615 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2023-04-02 01:26:40,616 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2023-04-02 01:26:40,617 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2023-04-02 01:26:40,618 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2023-04-02 01:26:40,619 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2023-04-02 01:26:40,620 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2023-04-02 01:26:40,622 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2023-04-02 01:26:40,623 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2023-04-02 01:26:40,624 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2023-04-02 01:26:40,625 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2023-04-02 01:26:40,626 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2023-04-02 01:26:40,627 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2023-04-02 01:26:40,628 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2023-04-02 01:26:40,629 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2023-04-02 01:26:40,630 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2023-04-02 01:26:40,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:26:40,647 INFO L208 MainTranslator]: Completed translation [2023-04-02 01:26:40,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40 WrapperNode [2023-04-02 01:26:40,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 01:26:40,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 01:26:40,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 01:26:40,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 01:26:40,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,677 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 01:26:40,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 01:26:40,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 01:26:40,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 01:26:40,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (1/1) ... [2023-04-02 01:26:40,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:26:40,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:26:40,713 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) [2023-04-02 01:26:40,716 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 [2023-04-02 01:26:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 01:26:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 01:26:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 01:26:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 01:26:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 01:26:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 01:26:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 01:26:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 01:26:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 01:26:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 01:26:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 01:26:40,813 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 01:26:40,815 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 01:26:41,082 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 01:26:41,089 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 01:26:41,089 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 01:26:41,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:26:41 BoogieIcfgContainer [2023-04-02 01:26:41,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 01:26:41,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 01:26:41,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 01:26:41,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 01:26:41,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 01:26:40" (1/3) ... [2023-04-02 01:26:41,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd27f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:26:41, skipping insertion in model container [2023-04-02 01:26:41,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:26:40" (2/3) ... [2023-04-02 01:26:41,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd27f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:26:41, skipping insertion in model container [2023-04-02 01:26:41,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:26:41" (3/3) ... [2023-04-02 01:26:41,100 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2023-04-02 01:26:41,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 01:26:41,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-04-02 01:26:41,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 01:26:41,161 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4efee75b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 01:26:41,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-04-02 01:26:41,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 57 states have (on average 1.8421052631578947) internal successors, (105), 75 states have internal predecessors, (105), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 01:26:41,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-04-02 01:26:41,172 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:41,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:41,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:41,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1796468500, now seen corresponding path program 1 times [2023-04-02 01:26:41,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:41,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41517856] [2023-04-02 01:26:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:41,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:41,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:41,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41517856] [2023-04-02 01:26:41,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41517856] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:41,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:41,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 01:26:41,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142927702] [2023-04-02 01:26:41,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:41,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 01:26:41,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 01:26:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 01:26:41,618 INFO L87 Difference]: Start difference. First operand has 80 states, 57 states have (on average 1.8421052631578947) internal successors, (105), 75 states have internal predecessors, (105), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:41,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:41,846 INFO L93 Difference]: Finished difference Result 129 states and 172 transitions. [2023-04-02 01:26:41,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 01:26:41,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-04-02 01:26:41,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:41,855 INFO L225 Difference]: With dead ends: 129 [2023-04-02 01:26:41,855 INFO L226 Difference]: Without dead ends: 111 [2023-04-02 01:26:41,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:41,863 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 70 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:41,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 201 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:41,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-04-02 01:26:41,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2023-04-02 01:26:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 69 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:41,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2023-04-02 01:26:41,903 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2023-04-02 01:26:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:41,903 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2023-04-02 01:26:41,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2023-04-02 01:26:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-04-02 01:26:41,904 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:41,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:41,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 01:26:41,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr11ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:41,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:41,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1799639252, now seen corresponding path program 1 times [2023-04-02 01:26:41,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:41,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688023209] [2023-04-02 01:26:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:42,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:42,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:42,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688023209] [2023-04-02 01:26:42,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688023209] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:42,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:42,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 01:26:42,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423006288] [2023-04-02 01:26:42,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:42,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 01:26:42,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 01:26:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 01:26:42,098 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:42,306 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2023-04-02 01:26:42,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 01:26:42,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-04-02 01:26:42,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:42,309 INFO L225 Difference]: With dead ends: 111 [2023-04-02 01:26:42,309 INFO L226 Difference]: Without dead ends: 109 [2023-04-02 01:26:42,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:42,310 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 75 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:42,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 215 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:42,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-04-02 01:26:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 71. [2023-04-02 01:26:42,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 67 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2023-04-02 01:26:42,332 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 12 [2023-04-02 01:26:42,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:42,333 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2023-04-02 01:26:42,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,333 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2023-04-02 01:26:42,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-04-02 01:26:42,334 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:42,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:42,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 01:26:42,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:42,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:42,335 INFO L85 PathProgramCache]: Analyzing trace with hash -991466384, now seen corresponding path program 1 times [2023-04-02 01:26:42,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:42,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840500199] [2023-04-02 01:26:42,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:42,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:42,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:42,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840500199] [2023-04-02 01:26:42,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840500199] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:42,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:42,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:26:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204862941] [2023-04-02 01:26:42,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:42,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:26:42,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:42,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:26:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:26:42,504 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:42,656 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2023-04-02 01:26:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:26:42,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-04-02 01:26:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:42,658 INFO L225 Difference]: With dead ends: 73 [2023-04-02 01:26:42,658 INFO L226 Difference]: Without dead ends: 71 [2023-04-02 01:26:42,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:42,659 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 68 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:42,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 128 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-04-02 01:26:42,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2023-04-02 01:26:42,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 65 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2023-04-02 01:26:42,671 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 15 [2023-04-02 01:26:42,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:42,671 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2023-04-02 01:26:42,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2023-04-02 01:26:42,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-04-02 01:26:42,672 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:42,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:42,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 01:26:42,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr12ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:42,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1020772778, now seen corresponding path program 1 times [2023-04-02 01:26:42,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:42,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788792717] [2023-04-02 01:26:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:42,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:42,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788792717] [2023-04-02 01:26:42,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788792717] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:42,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:42,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:26:42,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111913433] [2023-04-02 01:26:42,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:42,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:26:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:26:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:26:42,798 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:42,940 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2023-04-02 01:26:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:26:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-04-02 01:26:42,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:42,942 INFO L225 Difference]: With dead ends: 71 [2023-04-02 01:26:42,942 INFO L226 Difference]: Without dead ends: 69 [2023-04-02 01:26:42,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:42,945 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 66 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:42,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 122 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-04-02 01:26:42,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2023-04-02 01:26:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 50 states have (on average 1.36) internal successors, (68), 63 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2023-04-02 01:26:42,965 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 15 [2023-04-02 01:26:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:42,966 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2023-04-02 01:26:42,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2023-04-02 01:26:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-02 01:26:42,968 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:42,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:42,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 01:26:42,969 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:42,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash -670683748, now seen corresponding path program 1 times [2023-04-02 01:26:42,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:42,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074389170] [2023-04-02 01:26:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:42,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:43,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:43,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074389170] [2023-04-02 01:26:43,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074389170] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:43,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:43,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 01:26:43,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984176354] [2023-04-02 01:26:43,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:43,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 01:26:43,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:43,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 01:26:43,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 01:26:43,048 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:43,147 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2023-04-02 01:26:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 01:26:43,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-04-02 01:26:43,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:43,150 INFO L225 Difference]: With dead ends: 69 [2023-04-02 01:26:43,150 INFO L226 Difference]: Without dead ends: 65 [2023-04-02 01:26:43,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:43,151 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:43,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 143 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-04-02 01:26:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2023-04-02 01:26:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 59 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2023-04-02 01:26:43,158 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 16 [2023-04-02 01:26:43,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:43,158 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2023-04-02 01:26:43,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,158 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2023-04-02 01:26:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-02 01:26:43,159 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:43,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:43,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 01:26:43,160 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr16ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:43,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:43,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1578739961, now seen corresponding path program 1 times [2023-04-02 01:26:43,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:43,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520126134] [2023-04-02 01:26:43,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:43,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:43,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:43,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520126134] [2023-04-02 01:26:43,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520126134] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:43,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:43,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:26:43,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801583742] [2023-04-02 01:26:43,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:43,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:26:43,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:43,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:26:43,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:26:43,247 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:43,419 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2023-04-02 01:26:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:26:43,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-04-02 01:26:43,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:43,421 INFO L225 Difference]: With dead ends: 108 [2023-04-02 01:26:43,422 INFO L226 Difference]: Without dead ends: 106 [2023-04-02 01:26:43,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:43,425 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 106 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:43,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 163 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:43,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-04-02 01:26:43,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 61. [2023-04-02 01:26:43,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 57 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2023-04-02 01:26:43,438 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 16 [2023-04-02 01:26:43,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:43,438 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2023-04-02 01:26:43,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2023-04-02 01:26:43,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-02 01:26:43,439 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:43,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:43,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 01:26:43,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr14ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:43,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1578753863, now seen corresponding path program 1 times [2023-04-02 01:26:43,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:43,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744502930] [2023-04-02 01:26:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:43,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:43,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:43,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744502930] [2023-04-02 01:26:43,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744502930] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:43,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:43,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:26:43,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138561596] [2023-04-02 01:26:43,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:43,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:26:43,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:43,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:26:43,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:26:43,500 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:43,626 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2023-04-02 01:26:43,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:26:43,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-04-02 01:26:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:43,627 INFO L225 Difference]: With dead ends: 93 [2023-04-02 01:26:43,627 INFO L226 Difference]: Without dead ends: 91 [2023-04-02 01:26:43,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:43,628 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 91 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:43,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 143 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:43,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-04-02 01:26:43,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 59. [2023-04-02 01:26:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2023-04-02 01:26:43,633 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2023-04-02 01:26:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:43,633 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2023-04-02 01:26:43,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2023-04-02 01:26:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-02 01:26:43,634 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:43,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:43,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 01:26:43,634 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr13ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:43,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:43,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1579181860, now seen corresponding path program 1 times [2023-04-02 01:26:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:43,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752423897] [2023-04-02 01:26:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:43,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:43,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752423897] [2023-04-02 01:26:43,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752423897] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:43,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:43,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 01:26:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238063160] [2023-04-02 01:26:43,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:43,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 01:26:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:43,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 01:26:43,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 01:26:43,685 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:43,764 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2023-04-02 01:26:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 01:26:43,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-04-02 01:26:43,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:43,765 INFO L225 Difference]: With dead ends: 61 [2023-04-02 01:26:43,765 INFO L226 Difference]: Without dead ends: 57 [2023-04-02 01:26:43,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:43,766 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 20 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:43,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-04-02 01:26:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2023-04-02 01:26:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 51 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2023-04-02 01:26:43,770 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 16 [2023-04-02 01:26:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:43,770 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2023-04-02 01:26:43,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2023-04-02 01:26:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-02 01:26:43,771 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:43,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:43,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 01:26:43,771 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr3ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:43,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:43,772 INFO L85 PathProgramCache]: Analyzing trace with hash 697862626, now seen corresponding path program 1 times [2023-04-02 01:26:43,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:43,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202112495] [2023-04-02 01:26:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:43,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:43,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:43,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202112495] [2023-04-02 01:26:43,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202112495] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:43,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:43,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:26:43,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117396888] [2023-04-02 01:26:43,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:43,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:26:43,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:43,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:26:43,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:26:43,830 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:43,940 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2023-04-02 01:26:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:26:43,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-04-02 01:26:43,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:43,941 INFO L225 Difference]: With dead ends: 74 [2023-04-02 01:26:43,941 INFO L226 Difference]: Without dead ends: 72 [2023-04-02 01:26:43,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:43,944 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 76 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:43,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 112 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:43,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-04-02 01:26:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 53. [2023-04-02 01:26:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 49 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2023-04-02 01:26:43,949 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 17 [2023-04-02 01:26:43,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:43,950 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2023-04-02 01:26:43,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:43,950 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2023-04-02 01:26:43,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-02 01:26:43,952 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:43,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:43,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 01:26:43,953 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr9ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:43,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:43,953 INFO L85 PathProgramCache]: Analyzing trace with hash 699401826, now seen corresponding path program 1 times [2023-04-02 01:26:43,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:43,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060744050] [2023-04-02 01:26:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:43,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:44,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:44,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060744050] [2023-04-02 01:26:44,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060744050] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:44,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:44,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:26:44,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101531251] [2023-04-02 01:26:44,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:44,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:26:44,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:44,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:26:44,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:26:44,031 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:44,137 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2023-04-02 01:26:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:26:44,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-04-02 01:26:44,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:44,139 INFO L225 Difference]: With dead ends: 55 [2023-04-02 01:26:44,139 INFO L226 Difference]: Without dead ends: 53 [2023-04-02 01:26:44,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:44,140 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 48 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:44,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 86 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:44,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-04-02 01:26:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2023-04-02 01:26:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.3) internal successors, (52), 47 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2023-04-02 01:26:44,144 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2023-04-02 01:26:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:44,145 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2023-04-02 01:26:44,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2023-04-02 01:26:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-02 01:26:44,147 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:44,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:44,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 01:26:44,148 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:44,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1696295318, now seen corresponding path program 1 times [2023-04-02 01:26:44,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:44,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332198948] [2023-04-02 01:26:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:44,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:44,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332198948] [2023-04-02 01:26:44,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332198948] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:44,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:44,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:26:44,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916741158] [2023-04-02 01:26:44,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:44,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:26:44,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:44,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:26:44,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:44,320 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:44,501 INFO L93 Difference]: Finished difference Result 110 states and 119 transitions. [2023-04-02 01:26:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:26:44,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-04-02 01:26:44,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:44,503 INFO L225 Difference]: With dead ends: 110 [2023-04-02 01:26:44,503 INFO L226 Difference]: Without dead ends: 108 [2023-04-02 01:26:44,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-04-02 01:26:44,504 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 75 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:44,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 229 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-04-02 01:26:44,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 56. [2023-04-02 01:26:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 45 states have (on average 1.288888888888889) internal successors, (58), 52 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2023-04-02 01:26:44,509 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 17 [2023-04-02 01:26:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:44,509 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2023-04-02 01:26:44,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2023-04-02 01:26:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-02 01:26:44,510 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:44,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:44,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 01:26:44,510 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:44,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1696726294, now seen corresponding path program 1 times [2023-04-02 01:26:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:44,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004313734] [2023-04-02 01:26:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:44,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:44,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:44,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004313734] [2023-04-02 01:26:44,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004313734] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:44,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:44,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:26:44,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072101841] [2023-04-02 01:26:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:44,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:26:44,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:26:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:44,677 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:44,845 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2023-04-02 01:26:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:26:44,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-04-02 01:26:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:44,846 INFO L225 Difference]: With dead ends: 108 [2023-04-02 01:26:44,846 INFO L226 Difference]: Without dead ends: 106 [2023-04-02 01:26:44,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-04-02 01:26:44,847 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 71 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:44,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 164 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:44,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-04-02 01:26:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 58. [2023-04-02 01:26:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 54 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2023-04-02 01:26:44,854 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 17 [2023-04-02 01:26:44,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:44,855 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2023-04-02 01:26:44,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2023-04-02 01:26:44,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-02 01:26:44,855 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:44,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:44,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 01:26:44,856 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr7ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:44,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:44,857 INFO L85 PathProgramCache]: Analyzing trace with hash 160273451, now seen corresponding path program 1 times [2023-04-02 01:26:44,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:44,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094774667] [2023-04-02 01:26:44,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:44,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:44,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:44,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:44,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094774667] [2023-04-02 01:26:44,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094774667] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:44,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:44,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:26:44,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140781597] [2023-04-02 01:26:44,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:44,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:26:44,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:44,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:26:44,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:26:44,948 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:45,071 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2023-04-02 01:26:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:26:45,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-04-02 01:26:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:45,072 INFO L225 Difference]: With dead ends: 79 [2023-04-02 01:26:45,072 INFO L226 Difference]: Without dead ends: 77 [2023-04-02 01:26:45,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:45,073 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:45,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 104 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-04-02 01:26:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 56. [2023-04-02 01:26:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2023-04-02 01:26:45,078 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 18 [2023-04-02 01:26:45,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:45,078 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2023-04-02 01:26:45,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,079 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2023-04-02 01:26:45,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-02 01:26:45,079 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:45,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:45,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 01:26:45,079 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:45,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:45,080 INFO L85 PathProgramCache]: Analyzing trace with hash 158908031, now seen corresponding path program 1 times [2023-04-02 01:26:45,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:45,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793103454] [2023-04-02 01:26:45,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:45,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:45,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:45,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793103454] [2023-04-02 01:26:45,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793103454] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:45,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:45,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:26:45,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3054831] [2023-04-02 01:26:45,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:45,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:26:45,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:45,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:26:45,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:45,208 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:45,343 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2023-04-02 01:26:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:26:45,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-04-02 01:26:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:45,345 INFO L225 Difference]: With dead ends: 90 [2023-04-02 01:26:45,345 INFO L226 Difference]: Without dead ends: 88 [2023-04-02 01:26:45,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-04-02 01:26:45,346 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:45,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 130 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-04-02 01:26:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2023-04-02 01:26:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 58 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2023-04-02 01:26:45,353 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 18 [2023-04-02 01:26:45,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:45,353 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2023-04-02 01:26:45,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2023-04-02 01:26:45,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-02 01:26:45,354 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:45,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:45,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 01:26:45,354 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:45,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash 206623281, now seen corresponding path program 1 times [2023-04-02 01:26:45,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:45,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543471979] [2023-04-02 01:26:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:45,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:45,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:45,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543471979] [2023-04-02 01:26:45,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543471979] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:45,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:45,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:26:45,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484557969] [2023-04-02 01:26:45,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:45,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:26:45,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:45,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:26:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:45,458 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:45,582 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2023-04-02 01:26:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 01:26:45,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-04-02 01:26:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:45,584 INFO L225 Difference]: With dead ends: 74 [2023-04-02 01:26:45,584 INFO L226 Difference]: Without dead ends: 70 [2023-04-02 01:26:45,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-04-02 01:26:45,585 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 30 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:45,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 107 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-04-02 01:26:45,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2023-04-02 01:26:45,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 59 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2023-04-02 01:26:45,590 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 18 [2023-04-02 01:26:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:45,590 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2023-04-02 01:26:45,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2023-04-02 01:26:45,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-04-02 01:26:45,591 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:45,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:45,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 01:26:45,591 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:45,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash 673512821, now seen corresponding path program 1 times [2023-04-02 01:26:45,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:45,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914387033] [2023-04-02 01:26:45,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:45,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:45,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:45,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914387033] [2023-04-02 01:26:45,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914387033] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:45,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:45,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:26:45,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210903546] [2023-04-02 01:26:45,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:45,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:26:45,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:45,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:26:45,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:45,719 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:45,872 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2023-04-02 01:26:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:26:45,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-04-02 01:26:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:45,874 INFO L225 Difference]: With dead ends: 91 [2023-04-02 01:26:45,874 INFO L226 Difference]: Without dead ends: 89 [2023-04-02 01:26:45,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-04-02 01:26:45,875 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 51 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:45,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 158 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:45,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-04-02 01:26:45,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 66. [2023-04-02 01:26:45,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 56 states have (on average 1.25) internal successors, (70), 62 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2023-04-02 01:26:45,882 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 19 [2023-04-02 01:26:45,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:45,882 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2023-04-02 01:26:45,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:45,883 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2023-04-02 01:26:45,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-02 01:26:45,883 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:45,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:45,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 01:26:45,884 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr5ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:45,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1908108286, now seen corresponding path program 1 times [2023-04-02 01:26:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:45,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873618318] [2023-04-02 01:26:45,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:45,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:45,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:45,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873618318] [2023-04-02 01:26:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873618318] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 01:26:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497953778] [2023-04-02 01:26:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:45,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 01:26:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 01:26:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 01:26:45,957 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:46,034 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2023-04-02 01:26:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 01:26:46,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-04-02 01:26:46,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:46,035 INFO L225 Difference]: With dead ends: 66 [2023-04-02 01:26:46,035 INFO L226 Difference]: Without dead ends: 64 [2023-04-02 01:26:46,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:46,036 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 44 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:46,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 69 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 01:26:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-04-02 01:26:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-04-02 01:26:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 60 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2023-04-02 01:26:46,042 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 20 [2023-04-02 01:26:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:46,042 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2023-04-02 01:26:46,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2023-04-02 01:26:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-02 01:26:46,043 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:46,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:46,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 01:26:46,044 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr6ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:46,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:46,045 INFO L85 PathProgramCache]: Analyzing trace with hash 978188398, now seen corresponding path program 1 times [2023-04-02 01:26:46,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:46,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491306102] [2023-04-02 01:26:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:46,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:46,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:46,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491306102] [2023-04-02 01:26:46,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491306102] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:46,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:46,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 01:26:46,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314485971] [2023-04-02 01:26:46,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:46,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 01:26:46,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:46,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 01:26:46,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 01:26:46,109 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:46,180 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2023-04-02 01:26:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 01:26:46,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-04-02 01:26:46,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:46,181 INFO L225 Difference]: With dead ends: 64 [2023-04-02 01:26:46,181 INFO L226 Difference]: Without dead ends: 60 [2023-04-02 01:26:46,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:46,182 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 15 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:46,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 97 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-04-02 01:26:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-04-02 01:26:46,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 56 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2023-04-02 01:26:46,187 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 21 [2023-04-02 01:26:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:46,187 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2023-04-02 01:26:46,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2023-04-02 01:26:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-02 01:26:46,188 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:46,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:46,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 01:26:46,189 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:46,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:46,189 INFO L85 PathProgramCache]: Analyzing trace with hash 272309526, now seen corresponding path program 1 times [2023-04-02 01:26:46,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:46,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210928286] [2023-04-02 01:26:46,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:46,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:46,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:46,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210928286] [2023-04-02 01:26:46,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210928286] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:46,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:46,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:26:46,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722962023] [2023-04-02 01:26:46,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:46,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:26:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:46,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:26:46,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:26:46,288 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:46,437 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2023-04-02 01:26:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:26:46,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-04-02 01:26:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:46,438 INFO L225 Difference]: With dead ends: 75 [2023-04-02 01:26:46,438 INFO L226 Difference]: Without dead ends: 73 [2023-04-02 01:26:46,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-04-02 01:26:46,440 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 112 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:46,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 58 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-04-02 01:26:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 55. [2023-04-02 01:26:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2023-04-02 01:26:46,448 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 22 [2023-04-02 01:26:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:46,449 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2023-04-02 01:26:46,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2023-04-02 01:26:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-02 01:26:46,449 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:46,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:46,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 01:26:46,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr17ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:46,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1682587452, now seen corresponding path program 1 times [2023-04-02 01:26:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:46,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79332019] [2023-04-02 01:26:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:46,573 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:46,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:46,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79332019] [2023-04-02 01:26:46,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79332019] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:26:46,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461227833] [2023-04-02 01:26:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:46,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:26:46,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:26:46,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:26:46,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 01:26:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:46,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-02 01:26:46,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:26:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:46,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 01:26:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 01:26:47,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461227833] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 01:26:47,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 01:26:47,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 18 [2023-04-02 01:26:47,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536828198] [2023-04-02 01:26:47,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 01:26:47,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 01:26:47,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:47,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 01:26:47,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-04-02 01:26:47,014 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:47,324 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2023-04-02 01:26:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 01:26:47,325 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-04-02 01:26:47,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:47,325 INFO L225 Difference]: With dead ends: 102 [2023-04-02 01:26:47,325 INFO L226 Difference]: Without dead ends: 100 [2023-04-02 01:26:47,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2023-04-02 01:26:47,327 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 393 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:47,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 159 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 01:26:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-04-02 01:26:47,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 51. [2023-04-02 01:26:47,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 47 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2023-04-02 01:26:47,338 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 22 [2023-04-02 01:26:47,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:47,339 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2023-04-02 01:26:47,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:47,339 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-04-02 01:26:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-02 01:26:47,339 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:47,339 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:26:47,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 01:26:47,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:26:47,540 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr15ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:47,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:47,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1683018428, now seen corresponding path program 1 times [2023-04-02 01:26:47,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:47,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878941478] [2023-04-02 01:26:47,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:47,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:47,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:47,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:47,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878941478] [2023-04-02 01:26:47,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878941478] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:26:47,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458066118] [2023-04-02 01:26:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:47,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:26:47,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:26:47,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:26:47,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 01:26:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:47,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-02 01:26:47,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:26:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:47,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 01:26:47,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 01:26:47,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458066118] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 01:26:47,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 01:26:47,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 18 [2023-04-02 01:26:47,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909370283] [2023-04-02 01:26:47,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 01:26:47,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 01:26:47,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 01:26:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-04-02 01:26:47,925 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:48,204 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2023-04-02 01:26:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 01:26:48,205 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-04-02 01:26:48,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:48,205 INFO L225 Difference]: With dead ends: 113 [2023-04-02 01:26:48,205 INFO L226 Difference]: Without dead ends: 111 [2023-04-02 01:26:48,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2023-04-02 01:26:48,207 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 352 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:48,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 140 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 01:26:48,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-04-02 01:26:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 44. [2023-04-02 01:26:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2023-04-02 01:26:48,214 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 22 [2023-04-02 01:26:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:48,214 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2023-04-02 01:26:48,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2023-04-02 01:26:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-02 01:26:48,215 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:48,216 INFO L195 NwaCegarLoop]: 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] [2023-04-02 01:26:48,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 01:26:48,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-04-02 01:26:48,421 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr4ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:48,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1184340980, now seen corresponding path program 1 times [2023-04-02 01:26:48,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:48,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592895601] [2023-04-02 01:26:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:48,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:48,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:48,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592895601] [2023-04-02 01:26:48,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592895601] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:48,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:48,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 01:26:48,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294167377] [2023-04-02 01:26:48,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:48,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 01:26:48,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:48,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 01:26:48,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:48,519 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:48,630 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2023-04-02 01:26:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:26:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-04-02 01:26:48,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:48,631 INFO L225 Difference]: With dead ends: 56 [2023-04-02 01:26:48,631 INFO L226 Difference]: Without dead ends: 54 [2023-04-02 01:26:48,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-04-02 01:26:48,633 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 91 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:48,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 49 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:26:48,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-04-02 01:26:48,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2023-04-02 01:26:48,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2023-04-02 01:26:48,639 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 23 [2023-04-02 01:26:48,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:48,640 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2023-04-02 01:26:48,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-04-02 01:26:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-02 01:26:48,640 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:26:48,640 INFO L195 NwaCegarLoop]: 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] [2023-04-02 01:26:48,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 01:26:48,641 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr10ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2023-04-02 01:26:48,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:26:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1136625730, now seen corresponding path program 1 times [2023-04-02 01:26:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:26:48,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883372359] [2023-04-02 01:26:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:26:48,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:26:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:26:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:26:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:26:48,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:26:48,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883372359] [2023-04-02 01:26:48,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883372359] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:26:48,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:26:48,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 01:26:48,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260698066] [2023-04-02 01:26:48,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:26:48,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 01:26:48,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:26:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 01:26:48,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:26:48,738 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:26:48,817 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2023-04-02 01:26:48,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 01:26:48,818 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-04-02 01:26:48,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:26:48,818 INFO L225 Difference]: With dead ends: 39 [2023-04-02 01:26:48,818 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 01:26:48,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-04-02 01:26:48,820 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 89 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 01:26:48,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 34 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 01:26:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 01:26:48,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 01:26:48,821 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) [2023-04-02 01:26:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 01:26:48,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-04-02 01:26:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:26:48,821 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 01:26:48,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 01:26:48,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 01:26:48,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 01:26:48,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 18 remaining) [2023-04-02 01:26:48,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (16 of 18 remaining) [2023-04-02 01:26:48,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (15 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONERROR_FUNCTION (14 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONERROR_FUNCTION (13 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONERROR_FUNCTION (12 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONERROR_FUNCTION (11 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONERROR_FUNCTION (10 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONERROR_FUNCTION (9 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONERROR_FUNCTION (8 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONERROR_FUNCTION (7 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONERROR_FUNCTION (6 of 18 remaining) [2023-04-02 01:26:48,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONERROR_FUNCTION (5 of 18 remaining) [2023-04-02 01:26:48,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONERROR_FUNCTION (4 of 18 remaining) [2023-04-02 01:26:48,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONERROR_FUNCTION (3 of 18 remaining) [2023-04-02 01:26:48,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONERROR_FUNCTION (2 of 18 remaining) [2023-04-02 01:26:48,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONERROR_FUNCTION (1 of 18 remaining) [2023-04-02 01:26:48,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONERROR_FUNCTION (0 of 18 remaining) [2023-04-02 01:26:48,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 01:26:48,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 01:27:09,616 WARN L223 SmtUtils]: Spent 20.79s on a formula simplification. DAG size of input: 75 DAG size of output: 45 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 01:27:17,920 WARN L223 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 87 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 01:27:39,645 WARN L223 SmtUtils]: Spent 21.72s on a formula simplification. DAG size of input: 85 DAG size of output: 37 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 01:27:39,980 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2023-04-02 01:27:39,980 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2023-04-02 01:27:39,980 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 4) no Hoare annotation was computed. [2023-04-02 01:27:39,980 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 6 8) no Hoare annotation was computed. [2023-04-02 01:27:39,980 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-04-02 01:27:39,980 INFO L899 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2023-04-02 01:27:39,980 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 114) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point L126(line 126) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 15 402) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point L366(line 366) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point L333(line 333) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2023-04-02 01:27:39,981 INFO L899 garLoopResultBuilder]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 278) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L895 garLoopResultBuilder]: At program point L284(lines 282 391) the Hoare annotation is: (and (< main_~main__t~0 main_~main__tagbuf_len~0) (let ((.cse0 (not (= main_~__VERIFIER_assert__cond~13 0)))) (or (and (= main_~__VERIFIER_assert__cond~19 1) .cse0 (not (= main_~__VERIFIER_assert__cond~18 0)) (<= 1 main_~main__t~0)) (and .cse0 (= main_~main__t~0 0) (= main_~__VERIFIER_assert__cond~12 1))))) [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point L309(line 309) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 333) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2023-04-02 01:27:39,982 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 15 402) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 309) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 15 402) the Hoare annotation is: (and (= |old(~__return_305~0)| ~__return_305~0) (= |old(~__tmp_259_0~0)| ~__tmp_259_0~0) (= |old(~__tmp_383_0~0)| ~__tmp_383_0~0)) [2023-04-02 01:27:39,983 INFO L895 garLoopResultBuilder]: At program point $Ultimate##12(lines 63 252) the Hoare annotation is: (and (<= 1 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0)) [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2023-04-02 01:27:39,983 INFO L899 garLoopResultBuilder]: For program point L278(line 278) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 366) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L902 garLoopResultBuilder]: At program point L89(lines 32 395) the Hoare annotation is: true [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L345(line 345) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2023-04-02 01:27:39,984 INFO L899 garLoopResultBuilder]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 345) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 84) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L297(line 297) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2023-04-02 01:27:39,985 INFO L895 garLoopResultBuilder]: At program point L58(lines 32 395) the Hoare annotation is: (or (and (= main_~main__t~0 0) (< 0 main_~main__tagbuf_len~0)) (and (let ((.cse0 (not (= main_~__VERIFIER_assert__cond~13 0))) (.cse1 (not (= main_~__VERIFIER_assert__cond~16 0))) (.cse2 (= main_~__VERIFIER_assert__cond~17 1)) (.cse3 (<= 1 main_~main__t~0))) (or (and (<= main_~main__t~0 1) .cse0 .cse1 .cse2 .cse3) (and (= main_~__VERIFIER_assert__cond~19 1) .cse0 .cse1 .cse2 .cse3))) (< main_~main__t~0 main_~main__tagbuf_len~0))) [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 126) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2023-04-02 01:27:39,986 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 297) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L895 garLoopResultBuilder]: At program point L167(lines 101 251) the Hoare annotation is: (and (< main_~main__t~0 main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |old(~__return_305~0)| ~__return_305~0) (= |old(~__tmp_259_0~0)| ~__tmp_259_0~0) (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__tmp_383_0~0)| ~__tmp_383_0~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-02 01:27:39,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-02 01:27:39,987 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 01:27:39,990 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:27:39,992 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 01:27:40,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 01:27:40 BoogieIcfgContainer [2023-04-02 01:27:40,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 01:27:40,006 INFO L158 Benchmark]: Toolchain (without parser) took 59669.40ms. Allocated memory was 264.2MB in the beginning and 684.7MB in the end (delta: 420.5MB). Free memory was 221.3MB in the beginning and 341.0MB in the end (delta: -119.7MB). Peak memory consumption was 400.8MB. Max. memory is 8.0GB. [2023-04-02 01:27:40,006 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 181.4MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 01:27:40,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.72ms. Allocated memory is still 264.2MB. Free memory was 221.3MB in the beginning and 204.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-04-02 01:27:40,006 INFO L158 Benchmark]: Boogie Preprocessor took 32.43ms. Allocated memory is still 264.2MB. Free memory was 204.5MB in the beginning and 202.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 01:27:40,006 INFO L158 Benchmark]: RCFGBuilder took 408.84ms. Allocated memory is still 264.2MB. Free memory was 202.8MB in the beginning and 186.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-04-02 01:27:40,007 INFO L158 Benchmark]: TraceAbstraction took 58912.62ms. Allocated memory was 264.2MB in the beginning and 684.7MB in the end (delta: 420.5MB). Free memory was 185.4MB in the beginning and 341.0MB in the end (delta: -155.6MB). Peak memory consumption was 365.1MB. Max. memory is 8.0GB. [2023-04-02 01:27:40,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 181.4MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 308.72ms. Allocated memory is still 264.2MB. Free memory was 221.3MB in the beginning and 204.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.43ms. Allocated memory is still 264.2MB. Free memory was 204.5MB in the beginning and 202.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 408.84ms. Allocated memory is still 264.2MB. Free memory was 202.8MB in the beginning and 186.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 58912.62ms. Allocated memory was 264.2MB in the beginning and 684.7MB in the end (delta: 420.5MB). Free memory was 185.4MB in the beginning and 341.0MB in the end (delta: -155.6MB). Peak memory consumption was 365.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 52]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 72]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 84]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 114]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 126]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 142]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 154]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 176]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 188]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 224]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 236]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 278]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 297]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 309]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 345]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 366]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: 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 5 procedures, 87 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 58.8s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 51.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2091 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2091 mSDsluCounter, 2936 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1939 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3676 IncrementalHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 997 mSDtfsCounter, 3676 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 149 SyntacticMatches, 2 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 508 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 126 HoareAnnotationTreeSize, 9 FomulaSimplifications, 14528118 FormulaSimplificationTreeSizeReduction, 50.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1515 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 473 ConstructedInterpolants, 0 QuantifiedInterpolants, 1921 SizeOfPredicates, 12 NumberOfNonLiveVariables, 289 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 8/24 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 18 specifications checked. All of them hold - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && ((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__t) || ((!(__VERIFIER_assert__cond == 0) && main__t == 0) && __VERIFIER_assert__cond == 1)) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (main__t == 0 && 0 < main__tagbuf_len) || ((((((main__t <= 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__t) || ((((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__t)) && main__t < main__tagbuf_len) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t RESULT: Ultimate proved your program to be correct! [2023-04-02 01:27:40,023 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...