/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/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 07:13:57,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 07:13:57,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 07:13:57,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 07:13:57,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 07:13:57,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 07:13:57,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 07:13:57,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 07:13:57,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 07:13:57,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 07:13:57,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 07:13:57,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 07:13:57,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 07:13:57,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 07:13:57,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 07:13:57,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 07:13:57,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 07:13:57,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 07:13:57,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 07:13:57,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 07:13:57,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 07:13:57,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 07:13:57,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 07:13:57,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 07:13:57,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 07:13:57,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 07:13:57,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 07:13:57,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 07:13:57,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 07:13:57,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 07:13:57,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 07:13:57,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 07:13:57,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 07:13:57,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 07:13:57,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 07:13:57,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 07:13:57,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 07:13:57,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 07:13:57,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 07:13:57,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 07:13:57,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 07:13:57,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 07:13:57,489 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 07:13:57,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 07:13:57,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 07:13:57,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 07:13:57,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 07:13:57,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 07:13:57,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 07:13:57,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 07:13:57,491 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 07:13:57,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 07:13:57,491 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 07:13:57,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 07:13:57,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 07:13:57,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 07:13:57,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 07:13:57,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 07:13:57,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:13:57,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 07:13:57,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 07:13:57,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 07:13:57,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 07:13:57,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 07:13:57,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 07:13:57,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 07:13:57,496 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 07:13:57,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 07:13:57,497 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 07:13:57,497 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 07:13:57,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 07:13:57,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 07:13:57,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 07:13:57,730 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 07:13:57,731 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 07:13:57,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-04-02 07:13:58,865 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 07:13:59,225 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 07:13:59,226 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-04-02 07:13:59,248 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ab227cb/db5d38ddfebf4c0f939de814c3e93503/FLAG67c55e375 [2023-04-02 07:13:59,258 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ab227cb/db5d38ddfebf4c0f939de814c3e93503 [2023-04-02 07:13:59,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 07:13:59,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 07:13:59,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 07:13:59,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 07:13:59,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 07:13:59,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:13:59" (1/1) ... [2023-04-02 07:13:59,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f6d9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:13:59, skipping insertion in model container [2023-04-02 07:13:59,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:13:59" (1/1) ... [2023-04-02 07:13:59,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 07:13:59,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 07:14:00,025 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/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2023-04-02 07:14:00,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:14:00,116 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 07:14:00,312 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/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i[146121,146134] [2023-04-02 07:14:00,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:14:00,357 INFO L208 MainTranslator]: Completed translation [2023-04-02 07:14:00,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00 WrapperNode [2023-04-02 07:14:00,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 07:14:00,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 07:14:00,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 07:14:00,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 07:14:00,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 07:14:00,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 07:14:00,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 07:14:00,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 07:14:00,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (1/1) ... [2023-04-02 07:14:00,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:14:00,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:14:00,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 07:14:00,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 07:14:00,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 07:14:00,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 07:14:00,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 07:14:00,567 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-02 07:14:00,567 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-02 07:14:00,567 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_dump_class_desc [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_find_class_desc [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_startup [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_prepare_write_buffer [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_process_read_urb [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios_callback [2023-04-02 07:14:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 07:14:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2023-04-02 07:14:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2023-04-02 07:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2023-04-02 07:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2023-04-02 07:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2023-04-02 07:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-02 07:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-02 07:14:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-02 07:14:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-04-02 07:14:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2023-04-02 07:14:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2023-04-02 07:14:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-02 07:14:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 07:14:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 07:14:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-02 07:14:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2023-04-02 07:14:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2023-04-02 07:14:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-02 07:14:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2023-04-02 07:14:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2023-04-02 07:14:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2023-04-02 07:14:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2023-04-02 07:14:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2023-04-02 07:14:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2023-04-02 07:14:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2023-04-02 07:14:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2023-04-02 07:14:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-02 07:14:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-04-02 07:14:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure ir_startup [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure ir_prepare_write_buffer [2023-04-02 07:14:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure ir_process_read_urb [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_dump_class_desc [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_find_class_desc [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios_callback [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 07:14:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 07:14:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 07:14:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-04-02 07:14:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-04-02 07:14:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-04-02 07:14:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-02 07:14:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 07:14:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 07:14:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 07:14:00,870 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 07:14:00,872 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 07:14:00,954 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 07:14:01,046 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2023-04-02 07:14:01,046 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2023-04-02 07:14:01,075 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 07:14:01,115 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2023-04-02 07:14:01,116 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2023-04-02 07:14:01,391 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-04-02 07:14:01,402 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 07:14:01,432 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2023-04-02 07:14:01,433 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2023-04-02 07:14:01,749 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 07:14:01,840 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !false; [2023-04-02 07:14:01,840 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##102: assume false; [2023-04-02 07:14:01,868 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 07:14:01,881 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 07:14:01,881 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-04-02 07:14:01,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:14:01 BoogieIcfgContainer [2023-04-02 07:14:01,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 07:14:01,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 07:14:01,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 07:14:01,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 07:14:01,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 07:13:59" (1/3) ... [2023-04-02 07:14:01,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2611fc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:14:01, skipping insertion in model container [2023-04-02 07:14:01,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:14:00" (2/3) ... [2023-04-02 07:14:01,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2611fc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:14:01, skipping insertion in model container [2023-04-02 07:14:01,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:14:01" (3/3) ... [2023-04-02 07:14:01,894 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2023-04-02 07:14:01,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 07:14:01,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 07:14:02,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 07:14:02,009 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;@3a3ff70e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 07:14:02,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 07:14:02,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 522 states, 379 states have (on average 1.432717678100264) internal successors, (543), 393 states have internal predecessors, (543), 85 states have call successors, (85), 52 states have call predecessors, (85), 51 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2023-04-02 07:14:02,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-02 07:14:02,023 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:02,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:14:02,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:02,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:02,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1117194065, now seen corresponding path program 1 times [2023-04-02 07:14:02,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:02,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040366761] [2023-04-02 07:14:02,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:02,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:03,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:03,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:03,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:03,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:14:03,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:03,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040366761] [2023-04-02 07:14:03,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040366761] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:03,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:03,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 07:14:03,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222461994] [2023-04-02 07:14:03,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:03,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 07:14:03,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:03,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 07:14:03,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 07:14:03,453 INFO L87 Difference]: Start difference. First operand has 522 states, 379 states have (on average 1.432717678100264) internal successors, (543), 393 states have internal predecessors, (543), 85 states have call successors, (85), 52 states have call predecessors, (85), 51 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 07:14:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:09,569 INFO L93 Difference]: Finished difference Result 1427 states and 2020 transitions. [2023-04-02 07:14:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 07:14:09,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2023-04-02 07:14:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:09,590 INFO L225 Difference]: With dead ends: 1427 [2023-04-02 07:14:09,590 INFO L226 Difference]: Without dead ends: 923 [2023-04-02 07:14:09,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-04-02 07:14:09,598 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 2024 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 3073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:09,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 276 Invalid, 3073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-02 07:14:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-04-02 07:14:09,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 867. [2023-04-02 07:14:09,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 646 states have (on average 1.3142414860681115) internal successors, (849), 662 states have internal predecessors, (849), 138 states have call successors, (138), 83 states have call predecessors, (138), 82 states have return successors, (137), 129 states have call predecessors, (137), 133 states have call successors, (137) [2023-04-02 07:14:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1124 transitions. [2023-04-02 07:14:09,873 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1124 transitions. Word has length 27 [2023-04-02 07:14:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:09,874 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1124 transitions. [2023-04-02 07:14:09,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 07:14:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1124 transitions. [2023-04-02 07:14:09,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-02 07:14:09,874 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:09,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:14:09,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 07:14:09,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:09,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash 96125711, now seen corresponding path program 1 times [2023-04-02 07:14:09,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:09,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083808908] [2023-04-02 07:14:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:10,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:10,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:14:10,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083808908] [2023-04-02 07:14:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083808908] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:10,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:14:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430525097] [2023-04-02 07:14:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:10,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:14:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:10,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:14:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:14:10,502 INFO L87 Difference]: Start difference. First operand 867 states and 1124 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:14:16,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:16,343 INFO L93 Difference]: Finished difference Result 2596 states and 3403 transitions. [2023-04-02 07:14:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 07:14:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2023-04-02 07:14:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:16,353 INFO L225 Difference]: With dead ends: 2596 [2023-04-02 07:14:16,353 INFO L226 Difference]: Without dead ends: 1766 [2023-04-02 07:14:16,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:14:16,356 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 2126 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 667 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:16,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 206 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 07:14:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2023-04-02 07:14:16,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1681. [2023-04-02 07:14:16,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1262 states have (on average 1.3169572107765453) internal successors, (1662), 1291 states have internal predecessors, (1662), 261 states have call successors, (261), 155 states have call predecessors, (261), 157 states have return successors, (271), 248 states have call predecessors, (271), 255 states have call successors, (271) [2023-04-02 07:14:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2194 transitions. [2023-04-02 07:14:16,824 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2194 transitions. Word has length 27 [2023-04-02 07:14:16,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:16,824 INFO L495 AbstractCegarLoop]: Abstraction has 1681 states and 2194 transitions. [2023-04-02 07:14:16,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:14:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2194 transitions. [2023-04-02 07:14:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-02 07:14:16,825 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:16,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:14:16,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 07:14:16,825 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:16,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1315285095, now seen corresponding path program 1 times [2023-04-02 07:14:16,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:16,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192926329] [2023-04-02 07:14:16,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:16,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:17,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:14:17,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:17,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192926329] [2023-04-02 07:14:17,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192926329] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:17,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:17,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:14:17,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668287792] [2023-04-02 07:14:17,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:17,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:14:17,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:17,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:14:17,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:14:17,271 INFO L87 Difference]: Start difference. First operand 1681 states and 2194 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:14:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:20,881 INFO L93 Difference]: Finished difference Result 1754 states and 2299 transitions. [2023-04-02 07:14:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 07:14:20,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2023-04-02 07:14:20,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:20,889 INFO L225 Difference]: With dead ends: 1754 [2023-04-02 07:14:20,889 INFO L226 Difference]: Without dead ends: 1728 [2023-04-02 07:14:20,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:14:20,890 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 1353 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:20,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 104 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 07:14:20,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2023-04-02 07:14:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1658. [2023-04-02 07:14:21,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1252 states have (on average 1.3146964856230032) internal successors, (1646), 1278 states have internal predecessors, (1646), 253 states have call successors, (253), 149 states have call predecessors, (253), 152 states have return successors, (265), 243 states have call predecessors, (265), 249 states have call successors, (265) [2023-04-02 07:14:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2164 transitions. [2023-04-02 07:14:21,340 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2164 transitions. Word has length 28 [2023-04-02 07:14:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:21,341 INFO L495 AbstractCegarLoop]: Abstraction has 1658 states and 2164 transitions. [2023-04-02 07:14:21,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:14:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2164 transitions. [2023-04-02 07:14:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-04-02 07:14:21,353 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:21,353 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:21,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 07:14:21,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:21,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1742803832, now seen corresponding path program 1 times [2023-04-02 07:14:21,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:21,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759609577] [2023-04-02 07:14:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:21,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:21,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 07:14:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 07:14:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 07:14:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 07:14:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 07:14:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 07:14:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 07:14:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 07:14:22,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:22,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759609577] [2023-04-02 07:14:22,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759609577] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:14:22,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134818671] [2023-04-02 07:14:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:22,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:14:22,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:14:22,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:14:22,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 07:14:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:22,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 2536 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 07:14:22,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:14:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:14:22,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:14:22,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134818671] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:22,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:14:22,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2023-04-02 07:14:22,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301452548] [2023-04-02 07:14:22,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:22,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 07:14:22,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:22,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 07:14:22,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-04-02 07:14:22,917 INFO L87 Difference]: Start difference. First operand 1658 states and 2164 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 07:14:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:23,426 INFO L93 Difference]: Finished difference Result 3280 states and 4289 transitions. [2023-04-02 07:14:23,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 07:14:23,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 109 [2023-04-02 07:14:23,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:23,432 INFO L225 Difference]: With dead ends: 3280 [2023-04-02 07:14:23,432 INFO L226 Difference]: Without dead ends: 1653 [2023-04-02 07:14:23,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-04-02 07:14:23,441 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 2 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:23,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3058 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:14:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2023-04-02 07:14:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1653. [2023-04-02 07:14:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1249 states have (on average 1.3138510808646917) internal successors, (1641), 1274 states have internal predecessors, (1641), 252 states have call successors, (252), 148 states have call predecessors, (252), 151 states have return successors, (264), 242 states have call predecessors, (264), 248 states have call successors, (264) [2023-04-02 07:14:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2157 transitions. [2023-04-02 07:14:23,926 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2157 transitions. Word has length 109 [2023-04-02 07:14:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:23,927 INFO L495 AbstractCegarLoop]: Abstraction has 1653 states and 2157 transitions. [2023-04-02 07:14:23,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 07:14:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2157 transitions. [2023-04-02 07:14:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 07:14:23,929 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:23,929 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:23,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 07:14:24,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:14:24,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:24,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:24,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1062233998, now seen corresponding path program 1 times [2023-04-02 07:14:24,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:24,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261686000] [2023-04-02 07:14:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:24,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:14:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:14:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:14:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 07:14:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 07:14:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 07:14:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 07:14:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 07:14:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 07:14:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 07:14:24,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:24,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261686000] [2023-04-02 07:14:24,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261686000] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:14:24,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708900535] [2023-04-02 07:14:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:24,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:14:24,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:14:24,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 07:14:24,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 07:14:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:25,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 07:14:25,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:14:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:14:25,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:14:25,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708900535] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:25,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:14:25,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 11 [2023-04-02 07:14:25,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501523731] [2023-04-02 07:14:25,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:25,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 07:14:25,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:25,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 07:14:25,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-04-02 07:14:25,633 INFO L87 Difference]: Start difference. First operand 1653 states and 2157 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 07:14:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:26,087 INFO L93 Difference]: Finished difference Result 3303 states and 4336 transitions. [2023-04-02 07:14:26,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 07:14:26,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2023-04-02 07:14:26,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:26,094 INFO L225 Difference]: With dead ends: 3303 [2023-04-02 07:14:26,094 INFO L226 Difference]: Without dead ends: 1685 [2023-04-02 07:14:26,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-04-02 07:14:26,097 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 2 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:26,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3640 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 07:14:26,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2023-04-02 07:14:26,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1677. [2023-04-02 07:14:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1265 states have (on average 1.3098814229249012) internal successors, (1657), 1292 states have internal predecessors, (1657), 252 states have call successors, (252), 148 states have call predecessors, (252), 159 states have return successors, (280), 248 states have call predecessors, (280), 248 states have call successors, (280) [2023-04-02 07:14:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2189 transitions. [2023-04-02 07:14:26,519 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2189 transitions. Word has length 124 [2023-04-02 07:14:26,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:26,521 INFO L495 AbstractCegarLoop]: Abstraction has 1677 states and 2189 transitions. [2023-04-02 07:14:26,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 07:14:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2189 transitions. [2023-04-02 07:14:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 07:14:26,525 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:26,525 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:14:26,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 07:14:26,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:14:26,737 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:26,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:26,738 INFO L85 PathProgramCache]: Analyzing trace with hash 938160751, now seen corresponding path program 1 times [2023-04-02 07:14:26,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:26,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90399688] [2023-04-02 07:14:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:26,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:14:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:14:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:14:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 07:14:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 07:14:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 07:14:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 07:14:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 07:14:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 07:14:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:14:27,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:27,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90399688] [2023-04-02 07:14:27,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90399688] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:27,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:27,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 07:14:27,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048269596] [2023-04-02 07:14:27,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:27,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 07:14:27,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:27,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 07:14:27,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:14:27,458 INFO L87 Difference]: Start difference. First operand 1677 states and 2189 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 07:14:33,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:33,589 INFO L93 Difference]: Finished difference Result 3979 states and 5431 transitions. [2023-04-02 07:14:33,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 07:14:33,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2023-04-02 07:14:33,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:33,600 INFO L225 Difference]: With dead ends: 3979 [2023-04-02 07:14:33,600 INFO L226 Difference]: Without dead ends: 2337 [2023-04-02 07:14:33,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-04-02 07:14:33,607 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1415 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:33,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 578 Invalid, 4139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 3589 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 07:14:33,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2023-04-02 07:14:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 1641. [2023-04-02 07:14:34,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1243 states have (on average 1.3081255028157683) internal successors, (1626), 1266 states have internal predecessors, (1626), 241 states have call successors, (241), 144 states have call predecessors, (241), 156 states have return successors, (269), 240 states have call predecessors, (269), 237 states have call successors, (269) [2023-04-02 07:14:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2136 transitions. [2023-04-02 07:14:34,046 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2136 transitions. Word has length 124 [2023-04-02 07:14:34,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:34,047 INFO L495 AbstractCegarLoop]: Abstraction has 1641 states and 2136 transitions. [2023-04-02 07:14:34,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 07:14:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2136 transitions. [2023-04-02 07:14:34,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 07:14:34,049 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:34,050 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:14:34,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 07:14:34,050 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:34,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:34,050 INFO L85 PathProgramCache]: Analyzing trace with hash -571565954, now seen corresponding path program 1 times [2023-04-02 07:14:34,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:34,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596835867] [2023-04-02 07:14:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:34,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:14:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:14:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:14:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:14:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:14:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 07:14:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 07:14:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 07:14:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:14:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 07:14:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:14:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:14:34,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:34,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596835867] [2023-04-02 07:14:34,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596835867] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:34,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:34,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 07:14:34,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14475139] [2023-04-02 07:14:34,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:34,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 07:14:34,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:34,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 07:14:34,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-04-02 07:14:34,859 INFO L87 Difference]: Start difference. First operand 1641 states and 2136 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 07:14:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:42,602 INFO L93 Difference]: Finished difference Result 3223 states and 4454 transitions. [2023-04-02 07:14:42,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 07:14:42,603 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) Word has length 120 [2023-04-02 07:14:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:42,612 INFO L225 Difference]: With dead ends: 3223 [2023-04-02 07:14:42,612 INFO L226 Difference]: Without dead ends: 2376 [2023-04-02 07:14:42,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2023-04-02 07:14:42,616 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1846 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 7311 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 8057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 7311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:42,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 1093 Invalid, 8057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [746 Valid, 7311 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-02 07:14:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2023-04-02 07:14:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1649. [2023-04-02 07:14:43,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1249 states have (on average 1.3066453162530025) internal successors, (1632), 1272 states have internal predecessors, (1632), 241 states have call successors, (241), 144 states have call predecessors, (241), 158 states have return successors, (273), 242 states have call predecessors, (273), 237 states have call successors, (273) [2023-04-02 07:14:43,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2146 transitions. [2023-04-02 07:14:43,092 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2146 transitions. Word has length 120 [2023-04-02 07:14:43,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:43,092 INFO L495 AbstractCegarLoop]: Abstraction has 1649 states and 2146 transitions. [2023-04-02 07:14:43,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 07:14:43,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2146 transitions. [2023-04-02 07:14:43,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-04-02 07:14:43,095 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:43,095 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:14:43,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 07:14:43,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:43,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:43,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2090597343, now seen corresponding path program 1 times [2023-04-02 07:14:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:43,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443291592] [2023-04-02 07:14:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:43,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:14:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:14:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:14:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:14:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:14:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 07:14:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 07:14:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 07:14:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:14:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 07:14:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:14:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:14:44,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:44,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443291592] [2023-04-02 07:14:44,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443291592] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:44,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:44,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:14:44,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551804764] [2023-04-02 07:14:44,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:44,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:14:44,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:44,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:14:44,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:14:44,067 INFO L87 Difference]: Start difference. First operand 1649 states and 2146 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (22), 7 states have call predecessors, (22), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 07:14:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:51,218 INFO L93 Difference]: Finished difference Result 3111 states and 4223 transitions. [2023-04-02 07:14:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 07:14:51,218 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (22), 7 states have call predecessors, (22), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 120 [2023-04-02 07:14:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:51,226 INFO L225 Difference]: With dead ends: 3111 [2023-04-02 07:14:51,226 INFO L226 Difference]: Without dead ends: 2256 [2023-04-02 07:14:51,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-04-02 07:14:51,229 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1070 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 5138 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 5502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 5138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:51,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 644 Invalid, 5502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 5138 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 07:14:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2023-04-02 07:14:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1637. [2023-04-02 07:14:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1241 states have (on average 1.3037872683319904) internal successors, (1618), 1262 states have internal predecessors, (1618), 239 states have call successors, (239), 144 states have call predecessors, (239), 156 states have return successors, (267), 238 states have call predecessors, (267), 235 states have call successors, (267) [2023-04-02 07:14:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2124 transitions. [2023-04-02 07:14:51,724 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2124 transitions. Word has length 120 [2023-04-02 07:14:51,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:14:51,725 INFO L495 AbstractCegarLoop]: Abstraction has 1637 states and 2124 transitions. [2023-04-02 07:14:51,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (22), 7 states have call predecessors, (22), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 07:14:51,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2124 transitions. [2023-04-02 07:14:51,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 07:14:51,728 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:14:51,728 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:14:51,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 07:14:51,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:14:51,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:14:51,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1507252401, now seen corresponding path program 1 times [2023-04-02 07:14:51,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:14:51,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418824278] [2023-04-02 07:14:51,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:14:51,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:14:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:14:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:14:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:14:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:14:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:14:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 07:14:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 07:14:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 07:14:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 07:14:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:14:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:14:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 07:14:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:14:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 07:14:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:14:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 07:14:52,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:14:52,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418824278] [2023-04-02 07:14:52,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418824278] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:14:52,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:14:52,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 07:14:52,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157766959] [2023-04-02 07:14:52,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:14:52,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 07:14:52,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:14:52,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 07:14:52,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-04-02 07:14:52,446 INFO L87 Difference]: Start difference. First operand 1637 states and 2124 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 07:14:59,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:14:59,907 INFO L93 Difference]: Finished difference Result 3100 states and 4188 transitions. [2023-04-02 07:14:59,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 07:14:59,907 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 124 [2023-04-02 07:14:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:14:59,914 INFO L225 Difference]: With dead ends: 3100 [2023-04-02 07:14:59,914 INFO L226 Difference]: Without dead ends: 2257 [2023-04-02 07:14:59,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2023-04-02 07:14:59,917 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1835 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 6149 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 6880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 6149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:14:59,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 709 Invalid, 6880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [731 Valid, 6149 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 07:14:59,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2023-04-02 07:15:00,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1651. [2023-04-02 07:15:00,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1251 states have (on average 1.3013589128697043) internal successors, (1628), 1271 states have internal predecessors, (1628), 239 states have call successors, (239), 144 states have call predecessors, (239), 160 states have return successors, (273), 243 states have call predecessors, (273), 235 states have call successors, (273) [2023-04-02 07:15:00,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2140 transitions. [2023-04-02 07:15:00,421 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2140 transitions. Word has length 124 [2023-04-02 07:15:00,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:00,422 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2140 transitions. [2023-04-02 07:15:00,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 07:15:00,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2140 transitions. [2023-04-02 07:15:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 07:15:00,424 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:00,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:15:00,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 07:15:00,424 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:00,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:00,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1440245648, now seen corresponding path program 1 times [2023-04-02 07:15:00,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:00,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528522032] [2023-04-02 07:15:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:00,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:15:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:15:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:15:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 07:15:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 07:15:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 07:15:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 07:15:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 07:15:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 07:15:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:01,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:15:01,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:01,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528522032] [2023-04-02 07:15:01,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528522032] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:01,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:01,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 07:15:01,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388603408] [2023-04-02 07:15:01,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:01,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 07:15:01,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:01,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 07:15:01,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 07:15:01,344 INFO L87 Difference]: Start difference. First operand 1651 states and 2140 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (22), 8 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2023-04-02 07:15:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:12,949 INFO L93 Difference]: Finished difference Result 3373 states and 4593 transitions. [2023-04-02 07:15:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 07:15:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (22), 8 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 124 [2023-04-02 07:15:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:12,959 INFO L225 Difference]: With dead ends: 3373 [2023-04-02 07:15:12,960 INFO L226 Difference]: Without dead ends: 3370 [2023-04-02 07:15:12,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2023-04-02 07:15:12,961 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 4552 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 4373 mSolverCounterSat, 1661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4591 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 6034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1661 IncrementalHoareTripleChecker+Valid, 4373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:12,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4591 Valid, 434 Invalid, 6034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1661 Valid, 4373 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-04-02 07:15:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2023-04-02 07:15:13,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 2495. [2023-04-02 07:15:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1891 states have (on average 1.301427815970386) internal successors, (2461), 1923 states have internal predecessors, (2461), 358 states have call successors, (358), 212 states have call predecessors, (358), 245 states have return successors, (432), 373 states have call predecessors, (432), 354 states have call successors, (432) [2023-04-02 07:15:13,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3251 transitions. [2023-04-02 07:15:13,700 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3251 transitions. Word has length 124 [2023-04-02 07:15:13,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:13,700 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3251 transitions. [2023-04-02 07:15:13,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (22), 8 states have call predecessors, (22), 3 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2023-04-02 07:15:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3251 transitions. [2023-04-02 07:15:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-02 07:15:13,703 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:13,703 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:15:13,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 07:15:13,703 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:13,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:13,704 INFO L85 PathProgramCache]: Analyzing trace with hash 18530329, now seen corresponding path program 1 times [2023-04-02 07:15:13,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:13,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661769470] [2023-04-02 07:15:13,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:13,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:15:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:15:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:15:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:15:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 07:15:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 07:15:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 07:15:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:15:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 07:15:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 07:15:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 07:15:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:15:14,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:14,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661769470] [2023-04-02 07:15:14,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661769470] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:14,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:14,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:15:14,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581161798] [2023-04-02 07:15:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:14,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:15:14,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:14,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:15:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:15:14,523 INFO L87 Difference]: Start difference. First operand 2495 states and 3251 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 6 states have internal predecessors, (93), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:15:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:27,252 INFO L93 Difference]: Finished difference Result 9132 states and 12364 transitions. [2023-04-02 07:15:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 07:15:27,252 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 6 states have internal predecessors, (93), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 144 [2023-04-02 07:15:27,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:27,274 INFO L225 Difference]: With dead ends: 9132 [2023-04-02 07:15:27,274 INFO L226 Difference]: Without dead ends: 6672 [2023-04-02 07:15:27,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 07:15:27,281 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 4130 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 6895 mSolverCounterSat, 1571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 8466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1571 IncrementalHoareTripleChecker+Valid, 6895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:27,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 880 Invalid, 8466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1571 Valid, 6895 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-04-02 07:15:27,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2023-04-02 07:15:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 4962. [2023-04-02 07:15:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 3748 states have (on average 1.304162219850587) internal successors, (4888), 3829 states have internal predecessors, (4888), 714 states have call successors, (714), 412 states have call predecessors, (714), 499 states have return successors, (890), 748 states have call predecessors, (890), 710 states have call successors, (890) [2023-04-02 07:15:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 6492 transitions. [2023-04-02 07:15:28,836 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 6492 transitions. Word has length 144 [2023-04-02 07:15:28,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:28,836 INFO L495 AbstractCegarLoop]: Abstraction has 4962 states and 6492 transitions. [2023-04-02 07:15:28,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 6 states have internal predecessors, (93), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:15:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 6492 transitions. [2023-04-02 07:15:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-02 07:15:28,840 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:28,840 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:15:28,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 07:15:28,840 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:28,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:28,841 INFO L85 PathProgramCache]: Analyzing trace with hash 520347421, now seen corresponding path program 1 times [2023-04-02 07:15:28,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:28,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809334275] [2023-04-02 07:15:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:28,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:15:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:15:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:15:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:15:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 07:15:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 07:15:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 07:15:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 07:15:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 07:15:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:29,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 07:15:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 07:15:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:30,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:30,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:30,008 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 07:15:30,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:30,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809334275] [2023-04-02 07:15:30,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809334275] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 07:15:30,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151540004] [2023-04-02 07:15:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:30,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:15:30,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:15:30,011 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) [2023-04-02 07:15:30,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 07:15:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:30,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 2649 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 07:15:30,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 07:15:30,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-04-02 07:15:30,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-04-02 07:15:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:15:31,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 07:15:31,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151540004] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:31,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 07:15:31,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 22 [2023-04-02 07:15:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428806204] [2023-04-02 07:15:31,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:31,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 07:15:31,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 07:15:31,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-04-02 07:15:31,041 INFO L87 Difference]: Start difference. First operand 4962 states and 6492 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 6 states have call successors, (26), 5 states have call predecessors, (26), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2023-04-02 07:15:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:36,363 INFO L93 Difference]: Finished difference Result 14110 states and 18672 transitions. [2023-04-02 07:15:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 07:15:36,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 6 states have call successors, (26), 5 states have call predecessors, (26), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 144 [2023-04-02 07:15:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:36,392 INFO L225 Difference]: With dead ends: 14110 [2023-04-02 07:15:36,392 INFO L226 Difference]: Without dead ends: 9159 [2023-04-02 07:15:36,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2023-04-02 07:15:36,403 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1663 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:36,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 1029 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-02 07:15:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9159 states. [2023-04-02 07:15:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9159 to 8938. [2023-04-02 07:15:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8938 states, 6844 states have (on average 1.315897136177674) internal successors, (9006), 6971 states have internal predecessors, (9006), 1248 states have call successors, (1248), 726 states have call predecessors, (1248), 845 states have return successors, (1548), 1294 states have call predecessors, (1548), 1244 states have call successors, (1548) [2023-04-02 07:15:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8938 states to 8938 states and 11802 transitions. [2023-04-02 07:15:39,303 INFO L78 Accepts]: Start accepts. Automaton has 8938 states and 11802 transitions. Word has length 144 [2023-04-02 07:15:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:39,304 INFO L495 AbstractCegarLoop]: Abstraction has 8938 states and 11802 transitions. [2023-04-02 07:15:39,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 6 states have call successors, (26), 5 states have call predecessors, (26), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2023-04-02 07:15:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8938 states and 11802 transitions. [2023-04-02 07:15:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 07:15:39,309 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:39,310 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:15:39,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 07:15:39,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 07:15:39,524 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:39,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:39,525 INFO L85 PathProgramCache]: Analyzing trace with hash -595168652, now seen corresponding path program 1 times [2023-04-02 07:15:39,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:39,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391726659] [2023-04-02 07:15:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:39,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:15:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:15:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:15:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:15:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 07:15:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 07:15:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 07:15:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 07:15:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 07:15:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 07:15:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 07:15:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:40,363 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:15:40,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:40,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391726659] [2023-04-02 07:15:40,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391726659] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:40,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:40,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:15:40,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800498943] [2023-04-02 07:15:40,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:40,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:15:40,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:40,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:15:40,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:15:40,368 INFO L87 Difference]: Start difference. First operand 8938 states and 11802 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:15:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:15:55,438 INFO L93 Difference]: Finished difference Result 21315 states and 28881 transitions. [2023-04-02 07:15:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 07:15:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 145 [2023-04-02 07:15:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:15:55,480 INFO L225 Difference]: With dead ends: 21315 [2023-04-02 07:15:55,480 INFO L226 Difference]: Without dead ends: 12388 [2023-04-02 07:15:55,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 07:15:55,497 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 4581 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 6961 mSolverCounterSat, 1702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 8663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1702 IncrementalHoareTripleChecker+Valid, 6961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 07:15:55,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4617 Valid, 936 Invalid, 8663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1702 Valid, 6961 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 07:15:55,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12388 states. [2023-04-02 07:15:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12388 to 8938. [2023-04-02 07:15:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8938 states, 6844 states have (on average 1.315020455873758) internal successors, (9000), 6971 states have internal predecessors, (9000), 1248 states have call successors, (1248), 726 states have call predecessors, (1248), 845 states have return successors, (1548), 1294 states have call predecessors, (1548), 1244 states have call successors, (1548) [2023-04-02 07:15:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8938 states to 8938 states and 11796 transitions. [2023-04-02 07:15:58,646 INFO L78 Accepts]: Start accepts. Automaton has 8938 states and 11796 transitions. Word has length 145 [2023-04-02 07:15:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:15:58,647 INFO L495 AbstractCegarLoop]: Abstraction has 8938 states and 11796 transitions. [2023-04-02 07:15:58,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:15:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8938 states and 11796 transitions. [2023-04-02 07:15:58,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-02 07:15:58,651 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:15:58,651 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:15:58,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 07:15:58,651 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:15:58,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:15:58,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1183786646, now seen corresponding path program 1 times [2023-04-02 07:15:58,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:15:58,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521599384] [2023-04-02 07:15:58,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:15:58,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:15:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:15:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:15:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:15:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:15:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:15:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:15:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 07:15:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 07:15:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 07:15:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:15:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 07:15:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:15:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 07:15:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 07:15:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 07:15:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:15:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:15:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:15:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:15:59,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:15:59,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521599384] [2023-04-02 07:15:59,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521599384] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:15:59,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:15:59,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:15:59,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503929313] [2023-04-02 07:15:59,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:15:59,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:15:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:15:59,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:15:59,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:15:59,408 INFO L87 Difference]: Start difference. First operand 8938 states and 11796 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:16:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:15,184 INFO L93 Difference]: Finished difference Result 21309 states and 28863 transitions. [2023-04-02 07:16:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 07:16:15,184 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 146 [2023-04-02 07:16:15,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:15,225 INFO L225 Difference]: With dead ends: 21309 [2023-04-02 07:16:15,225 INFO L226 Difference]: Without dead ends: 12382 [2023-04-02 07:16:15,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 07:16:15,244 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 4635 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 6846 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 8586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 6846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:15,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4671 Valid, 940 Invalid, 8586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1740 Valid, 6846 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-04-02 07:16:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12382 states. [2023-04-02 07:16:18,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12382 to 8932. [2023-04-02 07:16:18,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8932 states, 6838 states have (on average 1.314419420883299) internal successors, (8988), 6965 states have internal predecessors, (8988), 1248 states have call successors, (1248), 726 states have call predecessors, (1248), 845 states have return successors, (1548), 1294 states have call predecessors, (1548), 1244 states have call successors, (1548) [2023-04-02 07:16:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8932 states to 8932 states and 11784 transitions. [2023-04-02 07:16:18,424 INFO L78 Accepts]: Start accepts. Automaton has 8932 states and 11784 transitions. Word has length 146 [2023-04-02 07:16:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:18,425 INFO L495 AbstractCegarLoop]: Abstraction has 8932 states and 11784 transitions. [2023-04-02 07:16:18,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:16:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 8932 states and 11784 transitions. [2023-04-02 07:16:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-02 07:16:18,429 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:18,429 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 07:16:18,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 07:16:18,429 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:18,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:18,429 INFO L85 PathProgramCache]: Analyzing trace with hash 596194707, now seen corresponding path program 1 times [2023-04-02 07:16:18,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:18,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345345922] [2023-04-02 07:16:18,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:18,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:16:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:16:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:16:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:16:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:16:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:16:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:16:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:16:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 07:16:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 07:16:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 07:16:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:16:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 07:16:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 07:16:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 07:16:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 07:16:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:16:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:19,158 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:16:19,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:19,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345345922] [2023-04-02 07:16:19,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345345922] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:19,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:19,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:16:19,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226439109] [2023-04-02 07:16:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:19,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:16:19,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:19,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:16:19,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:16:19,160 INFO L87 Difference]: Start difference. First operand 8932 states and 11784 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 6 states have internal predecessors, (96), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:16:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:35,129 INFO L93 Difference]: Finished difference Result 21303 states and 28845 transitions. [2023-04-02 07:16:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 07:16:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 6 states have internal predecessors, (96), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 147 [2023-04-02 07:16:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:35,169 INFO L225 Difference]: With dead ends: 21303 [2023-04-02 07:16:35,170 INFO L226 Difference]: Without dead ends: 12382 [2023-04-02 07:16:35,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 07:16:35,190 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 5664 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 6248 mSolverCounterSat, 2145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5700 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 8393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2145 IncrementalHoareTripleChecker+Valid, 6248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:35,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5700 Valid, 850 Invalid, 8393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2145 Valid, 6248 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-04-02 07:16:35,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12382 states. [2023-04-02 07:16:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12382 to 8932. [2023-04-02 07:16:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8932 states, 6838 states have (on average 1.313541971336648) internal successors, (8982), 6965 states have internal predecessors, (8982), 1248 states have call successors, (1248), 726 states have call predecessors, (1248), 845 states have return successors, (1548), 1294 states have call predecessors, (1548), 1244 states have call successors, (1548) [2023-04-02 07:16:38,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8932 states to 8932 states and 11778 transitions. [2023-04-02 07:16:38,513 INFO L78 Accepts]: Start accepts. Automaton has 8932 states and 11778 transitions. Word has length 147 [2023-04-02 07:16:38,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:38,513 INFO L495 AbstractCegarLoop]: Abstraction has 8932 states and 11778 transitions. [2023-04-02 07:16:38,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 6 states have internal predecessors, (96), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:16:38,514 INFO L276 IsEmpty]: Start isEmpty. Operand 8932 states and 11778 transitions. [2023-04-02 07:16:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-02 07:16:38,518 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:38,518 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2023-04-02 07:16:38,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 07:16:38,518 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:38,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:38,518 INFO L85 PathProgramCache]: Analyzing trace with hash 768631957, now seen corresponding path program 1 times [2023-04-02 07:16:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:38,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287554025] [2023-04-02 07:16:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:38,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:16:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:16:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:16:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:16:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:16:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:16:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:16:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:16:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 07:16:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 07:16:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 07:16:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:16:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 07:16:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 07:16:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 07:16:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 07:16:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:16:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:16:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:39,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287554025] [2023-04-02 07:16:39,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287554025] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:39,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:39,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:16:39,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027081490] [2023-04-02 07:16:39,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:39,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:16:39,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:39,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:16:39,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:16:39,283 INFO L87 Difference]: Start difference. First operand 8932 states and 11778 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 6 states have internal predecessors, (97), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:16:55,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:16:55,601 INFO L93 Difference]: Finished difference Result 21297 states and 28827 transitions. [2023-04-02 07:16:55,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 07:16:55,601 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 6 states have internal predecessors, (97), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 148 [2023-04-02 07:16:55,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:16:55,633 INFO L225 Difference]: With dead ends: 21297 [2023-04-02 07:16:55,633 INFO L226 Difference]: Without dead ends: 12376 [2023-04-02 07:16:55,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 07:16:55,648 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 3676 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 7198 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 8468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 7198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-04-02 07:16:55,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 989 Invalid, 8468 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1270 Valid, 7198 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-04-02 07:16:55,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12376 states. [2023-04-02 07:16:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12376 to 8926. [2023-04-02 07:16:59,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8926 states, 6832 states have (on average 1.3129391100702577) internal successors, (8970), 6959 states have internal predecessors, (8970), 1248 states have call successors, (1248), 726 states have call predecessors, (1248), 845 states have return successors, (1548), 1294 states have call predecessors, (1548), 1244 states have call successors, (1548) [2023-04-02 07:16:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8926 states to 8926 states and 11766 transitions. [2023-04-02 07:16:59,033 INFO L78 Accepts]: Start accepts. Automaton has 8926 states and 11766 transitions. Word has length 148 [2023-04-02 07:16:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:16:59,033 INFO L495 AbstractCegarLoop]: Abstraction has 8926 states and 11766 transitions. [2023-04-02 07:16:59,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 6 states have internal predecessors, (97), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:16:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8926 states and 11766 transitions. [2023-04-02 07:16:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 07:16:59,039 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:16:59,039 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2023-04-02 07:16:59,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 07:16:59,040 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:16:59,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:16:59,040 INFO L85 PathProgramCache]: Analyzing trace with hash 593731888, now seen corresponding path program 1 times [2023-04-02 07:16:59,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:16:59,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222929628] [2023-04-02 07:16:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:16:59,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:16:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:16:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:16:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:16:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:16:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:16:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:16:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:16:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:16:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 07:16:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 07:16:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 07:16:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:16:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 07:16:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:16:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 07:16:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 07:16:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 07:16:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:16:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:16:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:16:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:16:59,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:16:59,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222929628] [2023-04-02 07:16:59,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222929628] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:16:59,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:16:59,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:16:59,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130021329] [2023-04-02 07:16:59,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:16:59,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:16:59,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:16:59,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:16:59,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:16:59,938 INFO L87 Difference]: Start difference. First operand 8926 states and 11766 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 6 states have internal predecessors, (98), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:17:16,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:16,089 INFO L93 Difference]: Finished difference Result 21273 states and 28791 transitions. [2023-04-02 07:17:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 07:17:16,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 6 states have internal predecessors, (98), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 149 [2023-04-02 07:17:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:16,130 INFO L225 Difference]: With dead ends: 21273 [2023-04-02 07:17:16,130 INFO L226 Difference]: Without dead ends: 12358 [2023-04-02 07:17:16,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 07:17:16,148 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 4324 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 6647 mSolverCounterSat, 1571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 8218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1571 IncrementalHoareTripleChecker+Valid, 6647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:16,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 910 Invalid, 8218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1571 Valid, 6647 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 07:17:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12358 states. [2023-04-02 07:17:19,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12358 to 8920. [2023-04-02 07:17:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 6826 states have (on average 1.3123351889832993) internal successors, (8958), 6953 states have internal predecessors, (8958), 1248 states have call successors, (1248), 726 states have call predecessors, (1248), 845 states have return successors, (1548), 1294 states have call predecessors, (1548), 1244 states have call successors, (1548) [2023-04-02 07:17:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 11754 transitions. [2023-04-02 07:17:19,626 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 11754 transitions. Word has length 149 [2023-04-02 07:17:19,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:19,626 INFO L495 AbstractCegarLoop]: Abstraction has 8920 states and 11754 transitions. [2023-04-02 07:17:19,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 6 states have internal predecessors, (98), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:17:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 11754 transitions. [2023-04-02 07:17:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 07:17:19,630 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:19,630 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-04-02 07:17:19,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 07:17:19,630 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:19,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:19,631 INFO L85 PathProgramCache]: Analyzing trace with hash 120440468, now seen corresponding path program 1 times [2023-04-02 07:17:19,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:19,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094697841] [2023-04-02 07:17:19,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:19,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:17:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:17:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:17:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:17:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:17:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:17:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:17:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:17:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:17:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 07:17:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 07:17:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 07:17:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:17:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:17:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 07:17:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 07:17:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 07:17:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 07:17:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:17:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:17:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:17:20,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:20,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094697841] [2023-04-02 07:17:20,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094697841] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:17:20,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:17:20,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:17:20,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456308537] [2023-04-02 07:17:20,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:17:20,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:17:20,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:20,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:17:20,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:17:20,292 INFO L87 Difference]: Start difference. First operand 8920 states and 11754 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 6 states have internal predecessors, (99), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:17:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:17:36,804 INFO L93 Difference]: Finished difference Result 21261 states and 28767 transitions. [2023-04-02 07:17:36,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 07:17:36,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 6 states have internal predecessors, (99), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 150 [2023-04-02 07:17:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:17:36,837 INFO L225 Difference]: With dead ends: 21261 [2023-04-02 07:17:36,838 INFO L226 Difference]: Without dead ends: 12352 [2023-04-02 07:17:36,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 07:17:36,851 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 4214 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 6879 mSolverCounterSat, 1528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 8407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1528 IncrementalHoareTripleChecker+Valid, 6879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 07:17:36,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 915 Invalid, 8407 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1528 Valid, 6879 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 07:17:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12352 states. [2023-04-02 07:17:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12352 to 8914. [2023-04-02 07:17:40,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8914 states, 6820 states have (on average 1.3117302052785924) internal successors, (8946), 6947 states have internal predecessors, (8946), 1248 states have call successors, (1248), 726 states have call predecessors, (1248), 845 states have return successors, (1548), 1294 states have call predecessors, (1548), 1244 states have call successors, (1548) [2023-04-02 07:17:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8914 states to 8914 states and 11742 transitions. [2023-04-02 07:17:40,426 INFO L78 Accepts]: Start accepts. Automaton has 8914 states and 11742 transitions. Word has length 150 [2023-04-02 07:17:40,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:17:40,426 INFO L495 AbstractCegarLoop]: Abstraction has 8914 states and 11742 transitions. [2023-04-02 07:17:40,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 6 states have internal predecessors, (99), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-04-02 07:17:40,426 INFO L276 IsEmpty]: Start isEmpty. Operand 8914 states and 11742 transitions. [2023-04-02 07:17:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 07:17:40,429 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:17:40,430 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-04-02 07:17:40,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 07:17:40,430 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:17:40,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:17:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1013048241, now seen corresponding path program 1 times [2023-04-02 07:17:40,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:17:40,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800646875] [2023-04-02 07:17:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:17:40,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:17:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:17:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:17:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:17:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:17:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 07:17:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 07:17:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 07:17:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:17:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 07:17:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 07:17:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 07:17:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 07:17:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 07:17:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:17:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 07:17:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:17:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 07:17:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 07:17:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 07:17:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:17:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 07:17:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:17:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 07:17:41,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:17:41,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800646875] [2023-04-02 07:17:41,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800646875] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:17:41,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:17:41,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 07:17:41,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917397223] [2023-04-02 07:17:41,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:17:41,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 07:17:41,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:17:41,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 07:17:41,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 07:17:41,141 INFO L87 Difference]: Start difference. First operand 8914 states and 11742 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23)