/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/product-lines/email_spec0_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:55:15,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:55:15,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:55:15,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:55:15,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:55:15,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:55:15,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:55:15,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:55:15,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:55:15,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:55:15,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:55:15,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:55:15,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:55:15,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:55:15,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:55:15,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:55:15,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:55:15,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:55:15,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:55:15,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:55:15,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:55:15,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:55:15,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:55:15,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:55:15,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:55:15,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:55:15,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:55:15,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:55:15,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:55:15,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:55:15,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:55:15,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:55:15,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:55:15,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:55:15,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:55:15,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:55:15,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:55:15,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:55:15,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:55:15,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:55:15,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:55:15,736 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 [2023-03-31 00:55:15,773 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:55:15,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:55:15,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:55:15,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:55:15,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:55:15,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:55:15,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:55:15,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:55:15,777 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:55:15,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:55:15,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:55:15,779 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:55:15,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:55:15,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:55:15,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:55:15,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:55:15,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:55:15,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:55:15,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:55:15,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:55:15,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:55:15,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:55:15,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:55:15,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:55:15,780 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:55:15,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:55:15,781 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:55:15,781 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:55:16,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:55:16,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:55:16,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:55:16,060 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:55:16,060 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:55:16,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2023-03-31 00:55:17,248 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:55:17,559 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:55:17,559 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2023-03-31 00:55:17,579 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/920e23e90/a493970d3ca44b4aafd71f92694936d7/FLAG3dd1fffac [2023-03-31 00:55:17,594 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/920e23e90/a493970d3ca44b4aafd71f92694936d7 [2023-03-31 00:55:17,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:55:17,598 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:55:17,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:55:17,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:55:17,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:55:17,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:55:17" (1/1) ... [2023-03-31 00:55:17,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d43cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:17, skipping insertion in model container [2023-03-31 00:55:17,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:55:17" (1/1) ... [2023-03-31 00:55:17,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:55:17,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:55:17,833 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/product-lines/email_spec0_product10.cil.c[2842,2855] [2023-03-31 00:55:18,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:55:18,107 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:55:18,124 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/product-lines/email_spec0_product10.cil.c[2842,2855] [2023-03-31 00:55:18,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:55:18,262 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-03-31 00:55:18,268 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:55:18,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18 WrapperNode [2023-03-31 00:55:18,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:55:18,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:55:18,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:55:18,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:55:18,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:55:18,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:55:18,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:55:18,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:55:18,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (1/1) ... [2023-03-31 00:55:18,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:55:18,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:55:18,430 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) [2023-03-31 00:55:18,449 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 [2023-03-31 00:55:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:55:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:55:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:55:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:55:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-03-31 00:55:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:55:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:55:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:55:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:55:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:55:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2023-03-31 00:55:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:55:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:55:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:55:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-03-31 00:55:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:55:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-03-31 00:55:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-03-31 00:55:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-03-31 00:55:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-03-31 00:55:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-03-31 00:55:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-03-31 00:55:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-03-31 00:55:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-03-31 00:55:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-03-31 00:55:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-03-31 00:55:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-03-31 00:55:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-03-31 00:55:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-03-31 00:55:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-03-31 00:55:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-03-31 00:55:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-03-31 00:55:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-03-31 00:55:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-03-31 00:55:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-03-31 00:55:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-03-31 00:55:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-03-31 00:55:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-03-31 00:55:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-03-31 00:55:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-03-31 00:55:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-03-31 00:55:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-03-31 00:55:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-03-31 00:55:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-03-31 00:55:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-03-31 00:55:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-03-31 00:55:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:55:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:55:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:55:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-03-31 00:55:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-03-31 00:55:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-03-31 00:55:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-03-31 00:55:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-03-31 00:55:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-03-31 00:55:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-03-31 00:55:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-03-31 00:55:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-03-31 00:55:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-03-31 00:55:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-03-31 00:55:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-03-31 00:55:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:55:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:55:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:55:18,783 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:55:18,786 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:55:19,784 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:55:19,794 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:55:19,794 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-31 00:55:19,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:55:19 BoogieIcfgContainer [2023-03-31 00:55:19,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:55:19,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:55:19,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:55:19,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:55:19,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:55:17" (1/3) ... [2023-03-31 00:55:19,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@887dff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:55:19, skipping insertion in model container [2023-03-31 00:55:19,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:55:18" (2/3) ... [2023-03-31 00:55:19,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@887dff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:55:19, skipping insertion in model container [2023-03-31 00:55:19,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:55:19" (3/3) ... [2023-03-31 00:55:19,803 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product10.cil.c [2023-03-31 00:55:19,818 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:55:19,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:55:19,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:55:19,880 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;@6f0fadc4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:55:19,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:55:19,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 260 states, 163 states have (on average 1.361963190184049) internal successors, (222), 169 states have internal predecessors, (222), 52 states have call successors, (52), 42 states have call predecessors, (52), 42 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-03-31 00:55:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-03-31 00:55:19,898 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:19,899 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:19,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:19,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash -923521658, now seen corresponding path program 1 times [2023-03-31 00:55:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:19,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711026335] [2023-03-31 00:55:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:19,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:55:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 00:55:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 00:55:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 00:55:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 00:55:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 00:55:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 00:55:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-03-31 00:55:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 00:55:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,546 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 00:55:21,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:21,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711026335] [2023-03-31 00:55:21,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711026335] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:55:21,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303864596] [2023-03-31 00:55:21,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:21,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:55:21,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:55:21,552 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) [2023-03-31 00:55:21,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 00:55:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:21,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 1 conjunts are in the unsatisfiable core [2023-03-31 00:55:22,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:55:22,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-03-31 00:55:22,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:55:22,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303864596] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:55:22,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:55:22,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [14] total 14 [2023-03-31 00:55:22,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158074223] [2023-03-31 00:55:22,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:55:22,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 00:55:22,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:22,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 00:55:22,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:55:22,111 INFO L87 Difference]: Start difference. First operand has 260 states, 163 states have (on average 1.361963190184049) internal successors, (222), 169 states have internal predecessors, (222), 52 states have call successors, (52), 42 states have call predecessors, (52), 42 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:55:22,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:55:22,167 INFO L93 Difference]: Finished difference Result 419 states and 525 transitions. [2023-03-31 00:55:22,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 00:55:22,169 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 141 [2023-03-31 00:55:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:55:22,179 INFO L225 Difference]: With dead ends: 419 [2023-03-31 00:55:22,179 INFO L226 Difference]: Without dead ends: 247 [2023-03-31 00:55:22,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:55:22,186 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:55:22,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:55:22,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-03-31 00:55:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2023-03-31 00:55:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 156 states have (on average 1.3461538461538463) internal successors, (210), 159 states have internal predecessors, (210), 52 states have call successors, (52), 42 states have call predecessors, (52), 38 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-03-31 00:55:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 309 transitions. [2023-03-31 00:55:22,264 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 309 transitions. Word has length 141 [2023-03-31 00:55:22,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:55:22,267 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 309 transitions. [2023-03-31 00:55:22,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:55:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 309 transitions. [2023-03-31 00:55:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-03-31 00:55:22,278 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:22,278 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:22,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 00:55:22,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-31 00:55:22,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:22,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:22,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2145161341, now seen corresponding path program 1 times [2023-03-31 00:55:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:22,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505321067] [2023-03-31 00:55:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:55:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 00:55:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 00:55:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 00:55:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 00:55:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 00:55:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 00:55:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-03-31 00:55:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 00:55:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:23,784 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 00:55:23,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:23,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505321067] [2023-03-31 00:55:23,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505321067] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:55:23,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061200685] [2023-03-31 00:55:23,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:23,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:55:23,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:55:23,793 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) [2023-03-31 00:55:23,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 00:55:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:24,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 2 conjunts are in the unsatisfiable core [2023-03-31 00:55:24,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:55:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-03-31 00:55:24,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:55:24,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061200685] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:55:24,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:55:24,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2023-03-31 00:55:24,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435045884] [2023-03-31 00:55:24,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:55:24,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 00:55:24,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:24,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 00:55:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-03-31 00:55:24,276 INFO L87 Difference]: Start difference. First operand 247 states and 309 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:55:24,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:55:24,312 INFO L93 Difference]: Finished difference Result 402 states and 493 transitions. [2023-03-31 00:55:24,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 00:55:24,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 142 [2023-03-31 00:55:24,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:55:24,319 INFO L225 Difference]: With dead ends: 402 [2023-03-31 00:55:24,319 INFO L226 Difference]: Without dead ends: 250 [2023-03-31 00:55:24,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-03-31 00:55:24,321 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:55:24,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 612 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:55:24,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-03-31 00:55:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2023-03-31 00:55:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 158 states have (on average 1.3417721518987342) internal successors, (212), 161 states have internal predecessors, (212), 52 states have call successors, (52), 42 states have call predecessors, (52), 38 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-03-31 00:55:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 311 transitions. [2023-03-31 00:55:24,337 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 311 transitions. Word has length 142 [2023-03-31 00:55:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:55:24,338 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 311 transitions. [2023-03-31 00:55:24,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:55:24,338 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 311 transitions. [2023-03-31 00:55:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-03-31 00:55:24,339 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:24,339 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:24,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 00:55:24,540 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,SelfDestructingSolverStorable1 [2023-03-31 00:55:24,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:24,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash 793287425, now seen corresponding path program 1 times [2023-03-31 00:55:24,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:24,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249020480] [2023-03-31 00:55:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:55:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 00:55:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 00:55:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 00:55:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-03-31 00:55:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-03-31 00:55:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-03-31 00:55:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-03-31 00:55:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-03-31 00:55:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:55:25,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:25,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249020480] [2023-03-31 00:55:25,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249020480] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:55:25,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565656631] [2023-03-31 00:55:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:25,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:55:25,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:55:25,521 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:55:25,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 00:55:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:25,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 1663 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-31 00:55:25,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:55:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-31 00:55:26,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:55:26,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565656631] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:55:26,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:55:26,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 18 [2023-03-31 00:55:26,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279953091] [2023-03-31 00:55:26,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:55:26,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 00:55:26,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:26,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 00:55:26,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-03-31 00:55:26,015 INFO L87 Difference]: Start difference. First operand 249 states and 311 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:26,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:55:26,381 INFO L93 Difference]: Finished difference Result 477 states and 602 transitions. [2023-03-31 00:55:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 00:55:26,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 147 [2023-03-31 00:55:26,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:55:26,385 INFO L225 Difference]: With dead ends: 477 [2023-03-31 00:55:26,385 INFO L226 Difference]: Without dead ends: 257 [2023-03-31 00:55:26,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-03-31 00:55:26,387 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 277 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:55:26,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1221 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 00:55:26,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-03-31 00:55:26,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2023-03-31 00:55:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 164 states have (on average 1.3475609756097562) internal successors, (221), 168 states have internal predecessors, (221), 52 states have call successors, (52), 43 states have call predecessors, (52), 40 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-03-31 00:55:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 321 transitions. [2023-03-31 00:55:26,407 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 321 transitions. Word has length 147 [2023-03-31 00:55:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:55:26,407 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 321 transitions. [2023-03-31 00:55:26,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (34), 3 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 321 transitions. [2023-03-31 00:55:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-03-31 00:55:26,409 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:26,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:26,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 00:55:26,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:55:26,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:26,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:26,620 INFO L85 PathProgramCache]: Analyzing trace with hash 245645642, now seen corresponding path program 1 times [2023-03-31 00:55:26,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:26,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625826880] [2023-03-31 00:55:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:26,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:55:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-03-31 00:55:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 00:55:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-03-31 00:55:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 00:55:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 00:55:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-03-31 00:55:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-03-31 00:55:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-03-31 00:55:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:55:27,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:27,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625826880] [2023-03-31 00:55:27,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625826880] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:55:27,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:55:27,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 00:55:27,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204585795] [2023-03-31 00:55:27,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:55:27,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 00:55:27,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 00:55:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:55:27,552 INFO L87 Difference]: Start difference. First operand 257 states and 321 transitions. Second operand has 14 states, 12 states have (on average 6.75) internal successors, (81), 7 states have internal predecessors, (81), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:33,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:55:33,736 INFO L93 Difference]: Finished difference Result 639 states and 845 transitions. [2023-03-31 00:55:33,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 00:55:33,737 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.75) internal successors, (81), 7 states have internal predecessors, (81), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 148 [2023-03-31 00:55:33,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:55:33,740 INFO L225 Difference]: With dead ends: 639 [2023-03-31 00:55:33,740 INFO L226 Difference]: Without dead ends: 427 [2023-03-31 00:55:33,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 00:55:33,742 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1507 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-03-31 00:55:33,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 49 Invalid, 3063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [674 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-03-31 00:55:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-03-31 00:55:33,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 261. [2023-03-31 00:55:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 168 states have (on average 1.3452380952380953) internal successors, (226), 171 states have internal predecessors, (226), 52 states have call successors, (52), 44 states have call predecessors, (52), 40 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-03-31 00:55:33,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 325 transitions. [2023-03-31 00:55:33,951 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 325 transitions. Word has length 148 [2023-03-31 00:55:33,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:55:33,951 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 325 transitions. [2023-03-31 00:55:33,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.75) internal successors, (81), 7 states have internal predecessors, (81), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 325 transitions. [2023-03-31 00:55:33,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-03-31 00:55:33,954 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:33,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:33,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:55:33,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:33,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1859414283, now seen corresponding path program 2 times [2023-03-31 00:55:33,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:33,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715937554] [2023-03-31 00:55:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:33,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:55:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 00:55:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-03-31 00:55:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 00:55:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 00:55:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 00:55:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-03-31 00:55:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-03-31 00:55:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-03-31 00:55:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:55:34,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:34,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715937554] [2023-03-31 00:55:34,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715937554] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:55:34,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:55:34,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 00:55:34,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157855386] [2023-03-31 00:55:34,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:55:34,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 00:55:34,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 00:55:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:55:34,880 INFO L87 Difference]: Start difference. First operand 261 states and 325 transitions. Second operand has 14 states, 12 states have (on average 6.833333333333333) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:41,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:55:41,227 INFO L93 Difference]: Finished difference Result 639 states and 844 transitions. [2023-03-31 00:55:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 00:55:41,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.833333333333333) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 149 [2023-03-31 00:55:41,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:55:41,235 INFO L225 Difference]: With dead ends: 639 [2023-03-31 00:55:41,235 INFO L226 Difference]: Without dead ends: 429 [2023-03-31 00:55:41,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 00:55:41,238 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 831 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 2823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:55:41,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 49 Invalid, 2823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-03-31 00:55:41,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-03-31 00:55:41,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 261. [2023-03-31 00:55:41,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 168 states have (on average 1.3392857142857142) internal successors, (225), 171 states have internal predecessors, (225), 52 states have call successors, (52), 44 states have call predecessors, (52), 40 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-03-31 00:55:41,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 324 transitions. [2023-03-31 00:55:41,457 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 324 transitions. Word has length 149 [2023-03-31 00:55:41,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:55:41,457 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 324 transitions. [2023-03-31 00:55:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.833333333333333) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 324 transitions. [2023-03-31 00:55:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-03-31 00:55:41,459 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:41,459 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:41,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:55:41,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:41,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash 928776561, now seen corresponding path program 1 times [2023-03-31 00:55:41,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:41,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15951863] [2023-03-31 00:55:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:41,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:55:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 00:55:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-03-31 00:55:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-03-31 00:55:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 00:55:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-03-31 00:55:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-03-31 00:55:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 00:55:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-03-31 00:55:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:55:42,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:42,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15951863] [2023-03-31 00:55:42,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15951863] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:55:42,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:55:42,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 00:55:42,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183507961] [2023-03-31 00:55:42,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:55:42,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 00:55:42,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 00:55:42,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:55:42,273 INFO L87 Difference]: Start difference. First operand 261 states and 324 transitions. Second operand has 14 states, 12 states have (on average 6.916666666666667) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:55:49,468 INFO L93 Difference]: Finished difference Result 631 states and 834 transitions. [2023-03-31 00:55:49,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 00:55:49,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.916666666666667) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 150 [2023-03-31 00:55:49,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:55:49,471 INFO L225 Difference]: With dead ends: 631 [2023-03-31 00:55:49,472 INFO L226 Difference]: Without dead ends: 421 [2023-03-31 00:55:49,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=317, Invalid=873, Unknown=0, NotChecked=0, Total=1190 [2023-03-31 00:55:49,473 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 918 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:55:49,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 46 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-03-31 00:55:49,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-03-31 00:55:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 261. [2023-03-31 00:55:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 168 states have (on average 1.3333333333333333) internal successors, (224), 171 states have internal predecessors, (224), 52 states have call successors, (52), 44 states have call predecessors, (52), 40 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-03-31 00:55:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 323 transitions. [2023-03-31 00:55:49,629 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 323 transitions. Word has length 150 [2023-03-31 00:55:49,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:55:49,629 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 323 transitions. [2023-03-31 00:55:49,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.916666666666667) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (34), 9 states have call predecessors, (34), 4 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-03-31 00:55:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 323 transitions. [2023-03-31 00:55:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-03-31 00:55:49,631 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:49,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:49,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 00:55:49,631 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:49,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:49,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1332796689, now seen corresponding path program 1 times [2023-03-31 00:55:49,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:49,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565846096] [2023-03-31 00:55:49,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:49,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:55:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 00:55:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-03-31 00:55:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-03-31 00:55:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 00:55:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-03-31 00:55:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-03-31 00:55:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 00:55:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-03-31 00:55:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:55:50,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565846096] [2023-03-31 00:55:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565846096] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:55:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823186549] [2023-03-31 00:55:50,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:50,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:55:50,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:55:50,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:55:50,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 00:55:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:50,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:55:50,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:55:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:55:50,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 00:55:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:55:50,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823186549] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 00:55:50,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 00:55:50,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2023-03-31 00:55:50,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518651481] [2023-03-31 00:55:50,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 00:55:50,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 00:55:50,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:50,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 00:55:50,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:55:50,907 INFO L87 Difference]: Start difference. First operand 261 states and 323 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (61), 9 states have call predecessors, (61), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-03-31 00:55:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:55:56,727 INFO L93 Difference]: Finished difference Result 723 states and 1031 transitions. [2023-03-31 00:55:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-03-31 00:55:56,728 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (61), 9 states have call predecessors, (61), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 150 [2023-03-31 00:55:56,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:55:56,731 INFO L225 Difference]: With dead ends: 723 [2023-03-31 00:55:56,731 INFO L226 Difference]: Without dead ends: 571 [2023-03-31 00:55:56,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=250, Invalid=506, Unknown=0, NotChecked=0, Total=756 [2023-03-31 00:55:56,732 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1338 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-03-31 00:55:56,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 24 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-03-31 00:55:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-03-31 00:55:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 348. [2023-03-31 00:55:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 249 states have (on average 1.4899598393574298) internal successors, (371), 252 states have internal predecessors, (371), 58 states have call successors, (58), 44 states have call predecessors, (58), 40 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-03-31 00:55:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 482 transitions. [2023-03-31 00:55:56,967 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 482 transitions. Word has length 150 [2023-03-31 00:55:56,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:55:56,967 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 482 transitions. [2023-03-31 00:55:56,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 7 states have internal predecessors, (134), 2 states have call successors, (61), 9 states have call predecessors, (61), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-03-31 00:55:56,967 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 482 transitions. [2023-03-31 00:55:56,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-03-31 00:55:56,969 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:55:56,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:55:56,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 00:55:57,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:55:57,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:55:57,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:55:57,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1371151284, now seen corresponding path program 1 times [2023-03-31 00:55:57,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:55:57,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517946342] [2023-03-31 00:55:57,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:55:57,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:55:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:55:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:55:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:55:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:55:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:55:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 00:55:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:55:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 00:55:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 00:55:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 00:55:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-03-31 00:55:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:55:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:55:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 00:55:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-03-31 00:55:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-03-31 00:55:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:55:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:55:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:55:57,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517946342] [2023-03-31 00:55:57,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517946342] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:55:57,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:55:57,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:55:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129226419] [2023-03-31 00:55:57,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:55:57,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:55:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:55:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:55:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:55:57,850 INFO L87 Difference]: Start difference. First operand 348 states and 482 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:56:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:56:02,161 INFO L93 Difference]: Finished difference Result 997 states and 1525 transitions. [2023-03-31 00:56:02,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 00:56:02,161 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 157 [2023-03-31 00:56:02,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:56:02,165 INFO L225 Difference]: With dead ends: 997 [2023-03-31 00:56:02,165 INFO L226 Difference]: Without dead ends: 714 [2023-03-31 00:56:02,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=122, Invalid=220, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:56:02,171 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1084 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:56:02,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 18 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-03-31 00:56:02,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-03-31 00:56:02,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 434. [2023-03-31 00:56:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 329 states have (on average 1.553191489361702) internal successors, (511), 332 states have internal predecessors, (511), 64 states have call successors, (64), 44 states have call predecessors, (64), 40 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-03-31 00:56:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 634 transitions. [2023-03-31 00:56:02,555 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 634 transitions. Word has length 157 [2023-03-31 00:56:02,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:56:02,555 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 634 transitions. [2023-03-31 00:56:02,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:56:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 634 transitions. [2023-03-31 00:56:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-03-31 00:56:02,558 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:56:02,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:56:02,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 00:56:02,558 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:56:02,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:56:02,559 INFO L85 PathProgramCache]: Analyzing trace with hash -873510777, now seen corresponding path program 1 times [2023-03-31 00:56:02,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:56:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697218793] [2023-03-31 00:56:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:56:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:56:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:56:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:56:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:56:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:56:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:56:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:56:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:56:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-03-31 00:56:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:56:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 00:56:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 00:56:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-03-31 00:56:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 00:56:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:56:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 00:56:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-03-31 00:56:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-03-31 00:56:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:56:03,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:56:03,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697218793] [2023-03-31 00:56:03,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697218793] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:56:03,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:56:03,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:56:03,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083745935] [2023-03-31 00:56:03,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:56:03,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:56:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:56:03,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:56:03,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:56:03,251 INFO L87 Difference]: Start difference. First operand 434 states and 634 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:56:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:56:07,247 INFO L93 Difference]: Finished difference Result 1335 states and 2140 transitions. [2023-03-31 00:56:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 00:56:07,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 158 [2023-03-31 00:56:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:56:07,252 INFO L225 Difference]: With dead ends: 1335 [2023-03-31 00:56:07,252 INFO L226 Difference]: Without dead ends: 978 [2023-03-31 00:56:07,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=122, Invalid=220, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:56:07,254 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1383 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 537 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 00:56:07,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 22 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [537 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 00:56:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2023-03-31 00:56:07,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 566. [2023-03-31 00:56:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 456 states have (on average 1.6074561403508771) internal successors, (733), 459 states have internal predecessors, (733), 69 states have call successors, (69), 44 states have call predecessors, (69), 40 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2023-03-31 00:56:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 866 transitions. [2023-03-31 00:56:07,706 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 866 transitions. Word has length 158 [2023-03-31 00:56:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:56:07,707 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 866 transitions. [2023-03-31 00:56:07,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-03-31 00:56:07,707 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 866 transitions. [2023-03-31 00:56:07,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-03-31 00:56:07,709 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:56:07,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:56:07,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 00:56:07,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:56:07,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:56:07,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2119641974, now seen corresponding path program 1 times [2023-03-31 00:56:07,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:56:07,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838975394] [2023-03-31 00:56:07,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:56:07,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:56:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:56:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:56:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:56:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:56:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:56:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:56:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:56:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 00:56:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:56:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-03-31 00:56:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 00:56:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-03-31 00:56:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-03-31 00:56:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:56:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:56:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-03-31 00:56:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-03-31 00:56:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-03-31 00:56:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:56:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:56:08,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:56:08,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838975394] [2023-03-31 00:56:08,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838975394] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:56:08,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:56:08,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:56:08,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981062618] [2023-03-31 00:56:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:56:08,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:56:08,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:56:08,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:56:08,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:56:08,404 INFO L87 Difference]: Start difference. First operand 566 states and 866 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)