/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 07:21:32,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 07:21:32,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 07:21:32,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 07:21:32,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 07:21:32,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 07:21:32,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 07:21:32,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 07:21:32,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 07:21:32,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 07:21:32,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 07:21:32,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 07:21:32,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 07:21:32,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 07:21:32,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 07:21:32,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 07:21:32,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 07:21:32,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 07:21:32,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 07:21:32,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 07:21:32,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 07:21:32,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 07:21:32,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 07:21:32,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 07:21:32,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 07:21:32,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 07:21:32,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 07:21:32,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 07:21:32,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 07:21:32,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 07:21:32,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 07:21:32,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 07:21:32,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 07:21:32,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 07:21:32,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 07:21:32,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 07:21:32,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 07:21:32,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 07:21:32,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 07:21:32,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 07:21:32,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 07:21:32,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 07:21:32,442 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 07:21:32,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 07:21:32,442 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 07:21:32,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 07:21:32,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 07:21:32,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 07:21:32,443 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 07:21:32,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 07:21:32,443 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 07:21:32,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 07:21:32,444 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 07:21:32,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 07:21:32,444 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 07:21:32,444 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 07:21:32,444 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 07:21:32,444 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 07:21:32,444 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 07:21:32,445 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 07:21:32,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 07:21:32,445 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 07:21:32,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 07:21:32,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 07:21:32,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 07:21:32,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 07:21:32,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 07:21:32,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:21:32,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 07:21:32,447 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 07:21:32,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 07:21:32,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 07:21:32,447 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 07:21:32,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 07:21:32,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 07:21:32,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 07:21:32,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 07:21:32,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 07:21:32,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 07:21:32,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 07:21:32,715 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 07:21:32,716 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 07:21:32,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2023-04-01 07:21:33,894 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 07:21:34,361 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 07:21:34,362 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2023-04-01 07:21:34,403 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fb1a6656/a4976907ae3749309119ae03f094bc42/FLAG3c61be174 [2023-04-01 07:21:34,418 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fb1a6656/a4976907ae3749309119ae03f094bc42 [2023-04-01 07:21:34,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 07:21:34,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 07:21:34,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 07:21:34,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 07:21:34,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 07:21:34,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:21:34" (1/1) ... [2023-04-01 07:21:34,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9459d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:34, skipping insertion in model container [2023-04-01 07:21:34,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:21:34" (1/1) ... [2023-04-01 07:21:34,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 07:21:34,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 07:21:35,363 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[180577,180590] [2023-04-01 07:21:35,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:21:35,990 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 07:21:36,123 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[180577,180590] [2023-04-01 07:21:36,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:21:36,284 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 07:21:36,291 INFO L208 MainTranslator]: Completed translation [2023-04-01 07:21:36,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36 WrapperNode [2023-04-01 07:21:36,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 07:21:36,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 07:21:36,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 07:21:36,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 07:21:36,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,511 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 07:21:36,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 07:21:36,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 07:21:36,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 07:21:36,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (1/1) ... [2023-04-01 07:21:36,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:21:36,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:21:36,618 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) [2023-04-01 07:21:36,620 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 [2023-04-01 07:21:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 07:21:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 07:21:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 07:21:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 07:21:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 07:21:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2023-04-01 07:21:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-01 07:21:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-01 07:21:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 07:21:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-01 07:21:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 07:21:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_write_bulk_callback [2023-04-01 07:21:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_free [2023-04-01 07:21:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_setup_firmware [2023-04-01 07:21:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_fw_timeo [2023-04-01 07:21:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_probe [2023-04-01 07:21:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_disconnect [2023-04-01 07:21:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_send_fw_pkt [2023-04-01 07:21:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_reset_device [2023-04-01 07:21:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_block [2023-04-01 07:21:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __if_usb_submit_rx_urb [2023-04-01 07:21:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb_fwload [2023-04-01 07:21:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb [2023-04-01 07:21:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive_fwload [2023-04-01 07:21:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cmdtypedata [2023-04-01 07:21:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cmdrequest [2023-04-01 07:21:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive [2023-04-01 07:21:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_host_to_card [2023-04-01 07:21:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_issue_boot_command [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure check_fwfile_format [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_prog_firmware [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_suspend [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_resume [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_driver_init [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_driver_exit [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2023-04-01 07:21:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-01 07:21:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-01 07:21:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2023-04-01 07:21:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2023-04-01 07:21:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_14 [2023-04-01 07:21:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_15 [2023-04-01 07:21:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_16 [2023-04-01 07:21:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2023-04-01 07:21:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_18 [2023-04-01 07:21:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_19 [2023-04-01 07:21:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_20 [2023-04-01 07:21:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_21 [2023-04-01 07:21:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_22 [2023-04-01 07:21:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_23 [2023-04-01 07:21:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_24 [2023-04-01 07:21:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_25 [2023-04-01 07:21:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_26 [2023-04-01 07:21:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_27 [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_28 [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_29 [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_30 [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-01 07:21:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 07:21:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2023-04-01 07:21:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 07:21:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 07:21:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 07:21:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-04-01 07:21:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 07:21:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2023-04-01 07:21:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_card [2023-04-01 07:21:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_firmware_async [2023-04-01 07:21:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2023-04-01 07:21:36,674 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_to_card_done [2023-04-01 07:21:36,676 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_notify_command_response [2023-04-01 07:21:36,677 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_rxed_packet [2023-04-01 07:21:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_queue_event [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_card [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_tx_feedback [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_card [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-01 07:21:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 07:21:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2023-04-01 07:21:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_20 [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_28 [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-01 07:21:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_14 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_15 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_16 [2023-04-01 07:21:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_18 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_19 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_21 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_22 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_23 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_24 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_25 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_26 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_27 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 07:21:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 07:21:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2023-04-01 07:21:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_29 [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_30 [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-01 07:21:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_tx_feedback [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_rxed_packet [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_card [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_card [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_card [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_to_card_done [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_queue_event [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_notify_command_response [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_firmware_async [2023-04-01 07:21:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2023-04-01 07:21:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_copyback [2023-04-01 07:21:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive_fwload [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_prog_firmware [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_host_to_card [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_block [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_free [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_reset_device [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_write_bulk_callback [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_setup_firmware [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_fw_timeo [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_probe [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_disconnect [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_send_fw_pkt [2023-04-01 07:21:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure __if_usb_submit_rx_urb [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb_fwload [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure process_cmdtypedata [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure process_cmdrequest [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_issue_boot_command [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure check_fwfile_format [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_suspend [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_resume [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_driver_init [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_driver_exit [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 07:21:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 07:21:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 07:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 07:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 07:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 07:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 07:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 07:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 07:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 07:21:37,274 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 07:21:37,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 07:21:37,655 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 07:21:39,941 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 07:21:41,151 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 07:21:41,151 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 07:21:41,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:21:41 BoogieIcfgContainer [2023-04-01 07:21:41,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 07:21:41,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 07:21:41,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 07:21:41,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 07:21:41,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 07:21:34" (1/3) ... [2023-04-01 07:21:41,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4d7b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:21:41, skipping insertion in model container [2023-04-01 07:21:41,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:36" (2/3) ... [2023-04-01 07:21:41,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4d7b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:21:41, skipping insertion in model container [2023-04-01 07:21:41,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:21:41" (3/3) ... [2023-04-01 07:21:41,162 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2023-04-01 07:21:41,178 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 07:21:41,179 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 07:21:41,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 07:21:41,254 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=FINITE_AUTOMATA, 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;@4dbb06ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 07:21:41,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 07:21:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 1120 states, 653 states have (on average 1.2434915773353752) internal successors, (812), 675 states have internal predecessors, (812), 325 states have call successors, (325), 126 states have call predecessors, (325), 125 states have return successors, (321), 313 states have call predecessors, (321), 321 states have call successors, (321) [2023-04-01 07:21:41,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-01 07:21:41,290 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:41,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:41,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:41,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1093549621, now seen corresponding path program 1 times [2023-04-01 07:21:41,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:41,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737322006] [2023-04-01 07:21:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 07:21:41,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737322006] [2023-04-01 07:21:41,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737322006] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:41,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:41,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:21:41,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001479573] [2023-04-01 07:21:41,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:41,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:21:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:42,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:21:42,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:42,037 INFO L87 Difference]: Start difference. First operand has 1120 states, 653 states have (on average 1.2434915773353752) internal successors, (812), 675 states have internal predecessors, (812), 325 states have call successors, (325), 126 states have call predecessors, (325), 125 states have return successors, (321), 313 states have call predecessors, (321), 321 states have call successors, (321) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 07:21:42,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:42,981 INFO L93 Difference]: Finished difference Result 1711 states and 2261 transitions. [2023-04-01 07:21:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:21:42,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2023-04-01 07:21:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:43,007 INFO L225 Difference]: With dead ends: 1711 [2023-04-01 07:21:43,007 INFO L226 Difference]: Without dead ends: 1116 [2023-04-01 07:21:43,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:43,024 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 713 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:43,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1288 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 07:21:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-04-01 07:21:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2023-04-01 07:21:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 672 states have (on average 1.2455357142857142) internal successors, (837), 690 states have internal predecessors, (837), 308 states have call successors, (308), 138 states have call predecessors, (308), 135 states have return successors, (305), 299 states have call predecessors, (305), 305 states have call successors, (305) [2023-04-01 07:21:43,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1450 transitions. [2023-04-01 07:21:43,177 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1450 transitions. Word has length 52 [2023-04-01 07:21:43,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:43,178 INFO L495 AbstractCegarLoop]: Abstraction has 1116 states and 1450 transitions. [2023-04-01 07:21:43,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 07:21:43,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1450 transitions. [2023-04-01 07:21:43,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-01 07:21:43,184 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:43,184 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] [2023-04-01 07:21:43,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 07:21:43,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:43,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:43,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1817166905, now seen corresponding path program 1 times [2023-04-01 07:21:43,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:43,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571910925] [2023-04-01 07:21:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:43,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 07:21:43,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:43,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571910925] [2023-04-01 07:21:43,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571910925] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:43,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:43,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 07:21:43,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562098218] [2023-04-01 07:21:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:43,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 07:21:43,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 07:21:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 07:21:43,795 INFO L87 Difference]: Start difference. First operand 1116 states and 1450 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-01 07:21:45,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:45,594 INFO L93 Difference]: Finished difference Result 2218 states and 2900 transitions. [2023-04-01 07:21:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 07:21:45,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2023-04-01 07:21:45,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:45,607 INFO L225 Difference]: With dead ends: 2218 [2023-04-01 07:21:45,608 INFO L226 Difference]: Without dead ends: 2197 [2023-04-01 07:21:45,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 07:21:45,614 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 733 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:45,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 2928 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-01 07:21:45,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2023-04-01 07:21:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2197. [2023-04-01 07:21:45,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 1328 states have (on average 1.2462349397590362) internal successors, (1655), 1368 states have internal predecessors, (1655), 603 states have call successors, (603), 264 states have call predecessors, (603), 265 states have return successors, (620), 588 states have call predecessors, (620), 600 states have call successors, (620) [2023-04-01 07:21:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 2878 transitions. [2023-04-01 07:21:45,730 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 2878 transitions. Word has length 65 [2023-04-01 07:21:45,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:45,731 INFO L495 AbstractCegarLoop]: Abstraction has 2197 states and 2878 transitions. [2023-04-01 07:21:45,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-01 07:21:45,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 2878 transitions. [2023-04-01 07:21:45,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-01 07:21:45,738 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:45,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-04-01 07:21:45,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 07:21:45,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:45,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:45,740 INFO L85 PathProgramCache]: Analyzing trace with hash 164462912, now seen corresponding path program 1 times [2023-04-01 07:21:45,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:45,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740747981] [2023-04-01 07:21:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-01 07:21:46,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:46,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740747981] [2023-04-01 07:21:46,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740747981] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:46,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:21:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856229698] [2023-04-01 07:21:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:46,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:21:46,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:21:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:46,047 INFO L87 Difference]: Start difference. First operand 2197 states and 2878 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-01 07:21:46,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:46,616 INFO L93 Difference]: Finished difference Result 3548 states and 4645 transitions. [2023-04-01 07:21:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:21:46,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 133 [2023-04-01 07:21:46,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:46,624 INFO L225 Difference]: With dead ends: 3548 [2023-04-01 07:21:46,624 INFO L226 Difference]: Without dead ends: 1373 [2023-04-01 07:21:46,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:46,630 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 133 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:46,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1245 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 07:21:46,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2023-04-01 07:21:46,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1340. [2023-04-01 07:21:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 822 states have (on average 1.2712895377128954) internal successors, (1045), 857 states have internal predecessors, (1045), 349 states have call successors, (349), 169 states have call predecessors, (349), 168 states have return successors, (356), 331 states have call predecessors, (356), 346 states have call successors, (356) [2023-04-01 07:21:46,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1750 transitions. [2023-04-01 07:21:46,693 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1750 transitions. Word has length 133 [2023-04-01 07:21:46,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:46,693 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1750 transitions. [2023-04-01 07:21:46,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-01 07:21:46,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1750 transitions. [2023-04-01 07:21:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-01 07:21:46,698 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:46,698 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-04-01 07:21:46,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 07:21:46,698 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:46,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:46,699 INFO L85 PathProgramCache]: Analyzing trace with hash -586677084, now seen corresponding path program 1 times [2023-04-01 07:21:46,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:46,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91756090] [2023-04-01 07:21:46,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:46,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:46,992 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-01 07:21:46,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:46,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91756090] [2023-04-01 07:21:46,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91756090] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:46,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:46,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:21:46,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251849759] [2023-04-01 07:21:46,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:46,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:21:46,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:21:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:46,996 INFO L87 Difference]: Start difference. First operand 1340 states and 1750 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-01 07:21:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:47,496 INFO L93 Difference]: Finished difference Result 2872 states and 3744 transitions. [2023-04-01 07:21:47,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:21:47,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 150 [2023-04-01 07:21:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:47,505 INFO L225 Difference]: With dead ends: 2872 [2023-04-01 07:21:47,505 INFO L226 Difference]: Without dead ends: 1621 [2023-04-01 07:21:47,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:47,509 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 497 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:47,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1087 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:21:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2023-04-01 07:21:47,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1588. [2023-04-01 07:21:47,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 988 states have (on average 1.2793522267206479) internal successors, (1264), 1033 states have internal predecessors, (1264), 391 states have call successors, (391), 209 states have call predecessors, (391), 208 states have return successors, (398), 367 states have call predecessors, (398), 388 states have call successors, (398) [2023-04-01 07:21:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2053 transitions. [2023-04-01 07:21:47,574 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2053 transitions. Word has length 150 [2023-04-01 07:21:47,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:47,574 INFO L495 AbstractCegarLoop]: Abstraction has 1588 states and 2053 transitions. [2023-04-01 07:21:47,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-01 07:21:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2053 transitions. [2023-04-01 07:21:47,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-04-01 07:21:47,578 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:47,578 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:47,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 07:21:47,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:47,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:47,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1470314491, now seen corresponding path program 1 times [2023-04-01 07:21:47,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:47,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456779484] [2023-04-01 07:21:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:47,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-01 07:21:48,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:48,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456779484] [2023-04-01 07:21:48,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456779484] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:48,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:48,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 07:21:48,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224511685] [2023-04-01 07:21:48,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:48,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 07:21:48,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:48,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 07:21:48,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:21:48,082 INFO L87 Difference]: Start difference. First operand 1588 states and 2053 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 07:21:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:49,031 INFO L93 Difference]: Finished difference Result 3105 states and 4033 transitions. [2023-04-01 07:21:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 07:21:49,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 183 [2023-04-01 07:21:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:49,038 INFO L225 Difference]: With dead ends: 3105 [2023-04-01 07:21:49,039 INFO L226 Difference]: Without dead ends: 1606 [2023-04-01 07:21:49,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:21:49,043 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 2 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:49,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2535 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 07:21:49,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2023-04-01 07:21:49,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1598. [2023-04-01 07:21:49,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 995 states have (on average 1.2773869346733668) internal successors, (1271), 1041 states have internal predecessors, (1271), 391 states have call successors, (391), 209 states have call predecessors, (391), 211 states have return successors, (401), 369 states have call predecessors, (401), 388 states have call successors, (401) [2023-04-01 07:21:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2063 transitions. [2023-04-01 07:21:49,110 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2063 transitions. Word has length 183 [2023-04-01 07:21:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:49,112 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 2063 transitions. [2023-04-01 07:21:49,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 07:21:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2063 transitions. [2023-04-01 07:21:49,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-04-01 07:21:49,118 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:49,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:49,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 07:21:49,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:49,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:49,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1684517129, now seen corresponding path program 1 times [2023-04-01 07:21:49,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:49,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22606978] [2023-04-01 07:21:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:49,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 07:21:49,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:49,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22606978] [2023-04-01 07:21:49,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22606978] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:49,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:49,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 07:21:49,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372927636] [2023-04-01 07:21:49,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:49,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 07:21:49,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:49,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 07:21:49,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-01 07:21:49,707 INFO L87 Difference]: Start difference. First operand 1598 states and 2063 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 5 states have call predecessors, (34), 4 states have call successors, (34) [2023-04-01 07:21:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:51,163 INFO L93 Difference]: Finished difference Result 3290 states and 4276 transitions. [2023-04-01 07:21:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 07:21:51,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 5 states have call predecessors, (34), 4 states have call successors, (34) Word has length 194 [2023-04-01 07:21:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:51,172 INFO L225 Difference]: With dead ends: 3290 [2023-04-01 07:21:51,172 INFO L226 Difference]: Without dead ends: 1781 [2023-04-01 07:21:51,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-04-01 07:21:51,181 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 540 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:51,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 2561 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 07:21:51,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2023-04-01 07:21:51,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1746. [2023-04-01 07:21:51,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1105 states have (on average 1.2923076923076924) internal successors, (1428), 1159 states have internal predecessors, (1428), 415 states have call successors, (415), 221 states have call predecessors, (415), 225 states have return successors, (427), 389 states have call predecessors, (427), 412 states have call successors, (427) [2023-04-01 07:21:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2270 transitions. [2023-04-01 07:21:51,264 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2270 transitions. Word has length 194 [2023-04-01 07:21:51,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:51,265 INFO L495 AbstractCegarLoop]: Abstraction has 1746 states and 2270 transitions. [2023-04-01 07:21:51,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 5 states have call predecessors, (34), 4 states have call successors, (34) [2023-04-01 07:21:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2270 transitions. [2023-04-01 07:21:51,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-04-01 07:21:51,272 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:51,272 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:51,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 07:21:51,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:51,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1357014988, now seen corresponding path program 1 times [2023-04-01 07:21:51,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:51,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091788762] [2023-04-01 07:21:51,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:51,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-04-01 07:21:51,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:51,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091788762] [2023-04-01 07:21:51,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091788762] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:51,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:51,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 07:21:51,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664472874] [2023-04-01 07:21:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:51,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 07:21:51,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:51,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 07:21:51,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:21:51,978 INFO L87 Difference]: Start difference. First operand 1746 states and 2270 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 07:21:53,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:53,044 INFO L93 Difference]: Finished difference Result 3718 states and 4847 transitions. [2023-04-01 07:21:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 07:21:53,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 276 [2023-04-01 07:21:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:53,057 INFO L225 Difference]: With dead ends: 3718 [2023-04-01 07:21:53,057 INFO L226 Difference]: Without dead ends: 2061 [2023-04-01 07:21:53,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:21:53,065 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 233 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:53,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 2896 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-01 07:21:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2023-04-01 07:21:53,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2038. [2023-04-01 07:21:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 1293 states have (on average 1.2954369682907967) internal successors, (1675), 1359 states have internal predecessors, (1675), 479 states have call successors, (479), 259 states have call predecessors, (479), 265 states have return successors, (493), 449 states have call predecessors, (493), 476 states have call successors, (493) [2023-04-01 07:21:53,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 2647 transitions. [2023-04-01 07:21:53,155 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 2647 transitions. Word has length 276 [2023-04-01 07:21:53,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:53,156 INFO L495 AbstractCegarLoop]: Abstraction has 2038 states and 2647 transitions. [2023-04-01 07:21:53,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2023-04-01 07:21:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 2647 transitions. [2023-04-01 07:21:53,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-04-01 07:21:53,163 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:53,163 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:53,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 07:21:53,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:53,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash -286254475, now seen corresponding path program 1 times [2023-04-01 07:21:53,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:53,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840162688] [2023-04-01 07:21:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:53,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-04-01 07:21:53,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:53,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840162688] [2023-04-01 07:21:53,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840162688] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 07:21:53,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948318374] [2023-04-01 07:21:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:53,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:21:53,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:21:53,994 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) [2023-04-01 07:21:53,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 07:21:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:54,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 3983 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-01 07:21:54,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 07:21:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-04-01 07:21:55,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 07:21:55,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948318374] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:55,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 07:21:55,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-04-01 07:21:55,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558987658] [2023-04-01 07:21:55,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:55,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 07:21:55,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:55,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 07:21:55,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-01 07:21:55,056 INFO L87 Difference]: Start difference. First operand 2038 states and 2647 transitions. Second operand has 7 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (53), 3 states have call predecessors, (53), 4 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-01 07:21:56,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:56,765 INFO L93 Difference]: Finished difference Result 4376 states and 5774 transitions. [2023-04-01 07:21:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 07:21:56,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (53), 3 states have call predecessors, (53), 4 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 304 [2023-04-01 07:21:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:56,778 INFO L225 Difference]: With dead ends: 4376 [2023-04-01 07:21:56,778 INFO L226 Difference]: Without dead ends: 2427 [2023-04-01 07:21:56,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-04-01 07:21:56,787 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 292 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 4144 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:56,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 4144 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-01 07:21:56,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2023-04-01 07:21:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2064. [2023-04-01 07:21:56,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2064 states, 1309 states have (on average 1.293353705118411) internal successors, (1693), 1375 states have internal predecessors, (1693), 483 states have call successors, (483), 263 states have call predecessors, (483), 271 states have return successors, (499), 455 states have call predecessors, (499), 480 states have call successors, (499) [2023-04-01 07:21:56,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 2675 transitions. [2023-04-01 07:21:56,886 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 2675 transitions. Word has length 304 [2023-04-01 07:21:56,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:56,887 INFO L495 AbstractCegarLoop]: Abstraction has 2064 states and 2675 transitions. [2023-04-01 07:21:56,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (53), 3 states have call predecessors, (53), 4 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-01 07:21:56,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 2675 transitions. [2023-04-01 07:21:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2023-04-01 07:21:56,895 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:56,895 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:56,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 07:21:57,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:21:57,109 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:57,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:57,110 INFO L85 PathProgramCache]: Analyzing trace with hash -847842764, now seen corresponding path program 1 times [2023-04-01 07:21:57,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:57,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884664147] [2023-04-01 07:21:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:57,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-04-01 07:21:57,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884664147] [2023-04-01 07:21:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884664147] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 07:21:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767167565] [2023-04-01 07:21:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:57,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:21:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:21:57,874 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) [2023-04-01 07:21:57,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 07:21:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:58,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 4007 conjuncts, 20 conjunts are in the unsatisfiable core [2023-04-01 07:21:58,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 07:21:58,966 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 45 proven. 1 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-04-01 07:21:58,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 07:21:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-04-01 07:21:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767167565] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-01 07:21:59,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-01 07:21:59,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 7] total 15 [2023-04-01 07:21:59,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440711500] [2023-04-01 07:21:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:59,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 07:21:59,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 07:21:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-04-01 07:21:59,392 INFO L87 Difference]: Start difference. First operand 2064 states and 2675 transitions. Second operand has 6 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-01 07:22:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:22:01,018 INFO L93 Difference]: Finished difference Result 4216 states and 5497 transitions. [2023-04-01 07:22:01,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 07:22:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 312 [2023-04-01 07:22:01,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:22:01,034 INFO L225 Difference]: With dead ends: 4216 [2023-04-01 07:22:01,034 INFO L226 Difference]: Without dead ends: 2241 [2023-04-01 07:22:01,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-04-01 07:22:01,045 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 632 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 07:22:01,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1848 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 07:22:01,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2023-04-01 07:22:01,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2218. [2023-04-01 07:22:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 1425 states have (on average 1.3094736842105263) internal successors, (1866), 1501 states have internal predecessors, (1866), 507 states have call successors, (507), 275 states have call predecessors, (507), 285 states have return successors, (525), 475 states have call predecessors, (525), 504 states have call successors, (525) [2023-04-01 07:22:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 2898 transitions. [2023-04-01 07:22:01,149 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 2898 transitions. Word has length 312 [2023-04-01 07:22:01,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:22:01,197 INFO L495 AbstractCegarLoop]: Abstraction has 2218 states and 2898 transitions. [2023-04-01 07:22:01,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-01 07:22:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 2898 transitions. [2023-04-01 07:22:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-04-01 07:22:01,207 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:22:01,207 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:22:01,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 07:22:01,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-04-01 07:22:01,423 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:22:01,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:22:01,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1693828735, now seen corresponding path program 1 times [2023-04-01 07:22:01,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:22:01,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144578946] [2023-04-01 07:22:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:01,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:22:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-04-01 07:22:02,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:22:02,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144578946] [2023-04-01 07:22:02,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144578946] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 07:22:02,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915480730] [2023-04-01 07:22:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:02,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:22:02,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:22:02,229 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) [2023-04-01 07:22:02,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 07:22:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:03,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 4033 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-01 07:22:03,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 07:22:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-01 07:22:03,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 07:22:03,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915480730] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:22:03,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 07:22:03,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2023-04-01 07:22:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473377160] [2023-04-01 07:22:03,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:22:03,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 07:22:03,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:22:03,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 07:22:03,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-01 07:22:03,381 INFO L87 Difference]: Start difference. First operand 2218 states and 2898 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (55), 4 states have call predecessors, (55), 5 states have return successors, (52), 5 states have call predecessors, (52), 4 states have call successors, (52) [2023-04-01 07:22:06,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:22:06,133 INFO L93 Difference]: Finished difference Result 6475 states and 8470 transitions. [2023-04-01 07:22:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 07:22:06,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (55), 4 states have call predecessors, (55), 5 states have return successors, (52), 5 states have call predecessors, (52), 4 states have call successors, (52) Word has length 317 [2023-04-01 07:22:06,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:22:06,165 INFO L225 Difference]: With dead ends: 6475 [2023-04-01 07:22:06,165 INFO L226 Difference]: Without dead ends: 6454 [2023-04-01 07:22:06,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-04-01 07:22:06,172 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 1325 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-01 07:22:06,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 3018 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-01 07:22:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2023-04-01 07:22:06,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 6428. [2023-04-01 07:22:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6428 states, 4137 states have (on average 1.3096446700507614) internal successors, (5418), 4361 states have internal predecessors, (5418), 1471 states have call successors, (1471), 783 states have call predecessors, (1471), 819 states have return successors, (1531), 1381 states have call predecessors, (1531), 1468 states have call successors, (1531) [2023-04-01 07:22:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6428 states to 6428 states and 8420 transitions. [2023-04-01 07:22:06,464 INFO L78 Accepts]: Start accepts. Automaton has 6428 states and 8420 transitions. Word has length 317 [2023-04-01 07:22:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:22:06,464 INFO L495 AbstractCegarLoop]: Abstraction has 6428 states and 8420 transitions. [2023-04-01 07:22:06,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (55), 4 states have call predecessors, (55), 5 states have return successors, (52), 5 states have call predecessors, (52), 4 states have call successors, (52) [2023-04-01 07:22:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6428 states and 8420 transitions. [2023-04-01 07:22:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2023-04-01 07:22:06,476 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:22:06,477 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:22:06,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 07:22:06,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:22:06,690 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:22:06,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:22:06,690 INFO L85 PathProgramCache]: Analyzing trace with hash -654574396, now seen corresponding path program 1 times [2023-04-01 07:22:06,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:22:06,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374926099] [2023-04-01 07:22:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:06,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:22:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-04-01 07:22:07,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:22:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374926099] [2023-04-01 07:22:07,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374926099] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:22:07,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:22:07,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 07:22:07,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560564627] [2023-04-01 07:22:07,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:22:07,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 07:22:07,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:22:07,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 07:22:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-01 07:22:07,278 INFO L87 Difference]: Start difference. First operand 6428 states and 8420 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-01 07:22:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:22:07,901 INFO L93 Difference]: Finished difference Result 12486 states and 16382 transitions. [2023-04-01 07:22:07,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 07:22:07,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 333 [2023-04-01 07:22:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:22:07,929 INFO L225 Difference]: With dead ends: 12486 [2023-04-01 07:22:07,929 INFO L226 Difference]: Without dead ends: 5927 [2023-04-01 07:22:07,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-01 07:22:07,948 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 1061 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 07:22:07,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 826 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 07:22:07,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5927 states. [2023-04-01 07:22:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5927 to 5872. [2023-04-01 07:22:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 3759 states have (on average 1.2846501729183293) internal successors, (4829), 3948 states have internal predecessors, (4829), 1366 states have call successors, (1366), 710 states have call predecessors, (1366), 746 states have return successors, (1426), 1297 states have call predecessors, (1426), 1363 states have call successors, (1426) [2023-04-01 07:22:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 7621 transitions. [2023-04-01 07:22:08,275 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 7621 transitions. Word has length 333 [2023-04-01 07:22:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:22:08,275 INFO L495 AbstractCegarLoop]: Abstraction has 5872 states and 7621 transitions. [2023-04-01 07:22:08,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-01 07:22:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 7621 transitions. [2023-04-01 07:22:08,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-04-01 07:22:08,291 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:22:08,291 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:22:08,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-01 07:22:08,292 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:22:08,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:22:08,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1488085755, now seen corresponding path program 1 times [2023-04-01 07:22:08,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:22:08,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99379206] [2023-04-01 07:22:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:08,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:22:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 26 proven. 14 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-04-01 07:22:10,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:22:10,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99379206] [2023-04-01 07:22:10,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99379206] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 07:22:10,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139613259] [2023-04-01 07:22:10,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:10,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:22:10,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:22:10,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 07:22:10,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 07:22:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:11,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 4349 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 07:22:11,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 07:22:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-04-01 07:22:12,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 07:22:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 32 proven. 9 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-04-01 07:22:12,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139613259] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 07:22:12,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [13519750] [2023-04-01 07:22:12,943 INFO L159 IcfgInterpreter]: Started Sifa with 301 locations of interest [2023-04-01 07:22:12,943 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 07:22:12,947 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 07:22:12,952 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 07:22:12,952 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs