/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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 07:43:45,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 07:43:45,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 07:43:45,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 07:43:45,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 07:43:45,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 07:43:45,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 07:43:45,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 07:43:45,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 07:43:45,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 07:43:45,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 07:43:45,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 07:43:45,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 07:43:45,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 07:43:45,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 07:43:45,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 07:43:45,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 07:43:45,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 07:43:45,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 07:43:45,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 07:43:45,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 07:43:45,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 07:43:45,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 07:43:45,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 07:43:45,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 07:43:45,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 07:43:45,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 07:43:45,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 07:43:45,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 07:43:45,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 07:43:45,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 07:43:45,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 07:43:45,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 07:43:45,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 07:43:45,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 07:43:45,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 07:43:45,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 07:43:45,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 07:43:45,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 07:43:45,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 07:43:45,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 07:43:45,566 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 07:43:45,599 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 07:43:45,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 07:43:45,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 07:43:45,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 07:43:45,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 07:43:45,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 07:43:45,601 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 07:43:45,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 07:43:45,601 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 07:43:45,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 07:43:45,602 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 07:43:45,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 07:43:45,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 07:43:45,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 07:43:45,602 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 07:43:45,602 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 07:43:45,602 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 07:43:45,602 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 07:43:45,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 07:43:45,603 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 07:43:45,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 07:43:45,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 07:43:45,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 07:43:45,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 07:43:45,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 07:43:45,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 07:43:45,605 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 07:43:45,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 07:43:45,605 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 07:43:45,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 07:43:45,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 07:43:45,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 07:43:45,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:43:45,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 07:43:45,606 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 07:43:45,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 07:43:45,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 07:43:45,606 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 07:43:45,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 07:43:45,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 07:43:45,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 07:43:45,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 07:43:45,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 07:43:45,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 07:43:45,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 07:43:45,886 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 07:43:45,886 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 07:43:45,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-01 07:43:47,124 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 07:43:47,589 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 07:43:47,590 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-01 07:43:47,620 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff685b737/450d631b2b784a93ba029fa60b3c7328/FLAG05b882cb8 [2023-04-01 07:43:47,632 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff685b737/450d631b2b784a93ba029fa60b3c7328 [2023-04-01 07:43:47,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 07:43:47,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 07:43:47,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 07:43:47,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 07:43:47,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 07:43:47,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:43:47" (1/1) ... [2023-04-01 07:43:47,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41fc55b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:47, skipping insertion in model container [2023-04-01 07:43:47,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:43:47" (1/1) ... [2023-04-01 07:43:47,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 07:43:47,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 07:43:49,292 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2023-04-01 07:43:49,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:43:49,675 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 07:43:49,877 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2023-04-01 07:43:49,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:43:49,976 INFO L208 MainTranslator]: Completed translation [2023-04-01 07:43:49,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49 WrapperNode [2023-04-01 07:43:49,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 07:43:49,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 07:43:49,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 07:43:49,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 07:43:49,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:49,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,260 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 07:43:50,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 07:43:50,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 07:43:50,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 07:43:50,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (1/1) ... [2023-04-01 07:43:50,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:43:50,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:43:50,341 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 07:43:50,364 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 07:43:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 07:43:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 07:43:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 07:43:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-01 07:43:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 07:43:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 07:43:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 07:43:50,382 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-01 07:43:50,383 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-01 07:43:50,384 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-04-01 07:43:50,384 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-04-01 07:43:50,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-01 07:43:50,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-01 07:43:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-04-01 07:43:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-04-01 07:43:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-01 07:43:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2023-04-01 07:43:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 07:43:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-04-01 07:43:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-04-01 07:43:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-01 07:43:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 07:43:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-04-01 07:43:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2023-04-01 07:43:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device_by_minor [2023-04-01 07:43:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_out_callback [2023-04-01 07:43:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_in_callback [2023-04-01 07:43:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_int_callback [2023-04-01 07:43:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2023-04-01 07:43:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure free_urbs [2023-04-01 07:43:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_write [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_read [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_flush [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_poll [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_open [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_release [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_rxwork [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_manage_power [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_probe [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_cdc_wdm_register [2023-04-01 07:43:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_suspend [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_pre_reset [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_post_reset [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_driver_init [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_driver_exit [2023-04-01 07:43:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-04-01 07:43:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2023-04-01 07:43:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-01 07:43:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2023-04-01 07:43:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-04-01 07:43:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-04-01 07:43:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-04-01 07:43:50,391 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2023-04-01 07:43:50,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 07:43:50,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-01 07:43:50,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2023-04-01 07:43:50,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_13 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_15 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_17 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_18 [2023-04-01 07:43:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_20 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_23 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_24 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_25 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_26 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_27 [2023-04-01 07:43:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_28 [2023-04-01 07:43:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_29 [2023-04-01 07:43:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_30 [2023-04-01 07:43:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_31 [2023-04-01 07:43:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_32 [2023-04-01 07:43:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_33 [2023-04-01 07:43:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_34 [2023-04-01 07:43:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_35 [2023-04-01 07:43:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_36 [2023-04-01 07:43:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_37 [2023-04-01 07:43:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_38 [2023-04-01 07:43:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2023-04-01 07:43:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_40 [2023-04-01 07:43:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_41 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_42 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_43 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_44 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_45 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_46 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_47 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_48 [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-01 07:43:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-01 07:43:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2023-04-01 07:43:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_rlock_of_wdm_device [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_wdm_mutex [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_wdm_mutex [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wdm_mutex [2023-04-01 07:43:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_wdm_mutex [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_wlock_of_wdm_device [2023-04-01 07:43:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_wlock_of_wdm_device [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_wlock_of_wdm_device [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-01 07:43:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-01 07:43:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-01 07:43:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 07:43:50,412 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-04-01 07:43:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 07:43:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-01 07:43:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 07:43:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 07:43:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 07:43:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-01 07:43:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_15 [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 07:43:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_18 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_24 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_25 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_28 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_29 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_34 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_35 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_36 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_40 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_41 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_45 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_46 [2023-04-01 07:43:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_17 [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_20 [2023-04-01 07:43:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_13 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_23 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_26 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_27 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_30 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_31 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_32 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_37 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_38 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_42 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_43 [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-01 07:43:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_rlock_of_wdm_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rlock_of_wdm_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rlock_of_wdm_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wdm_mutex [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wdm_mutex [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_wlock_of_wdm_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wlock_of_wdm_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wlock_of_wdm_device [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 07:43:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2023-04-01 07:43:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_33 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_44 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2023-04-01 07:43:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-01 07:43:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_47 [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_48 [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-04-01 07:43:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_cdc_wdm_register [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device_by_minor [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_out_callback [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_in_callback [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 07:43:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_int_callback [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure free_urbs [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_write [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_read [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_flush [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_poll [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_open [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_release [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_rxwork [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_manage_power [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_probe [2023-04-01 07:43:50,428 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_suspend [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_pre_reset [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_post_reset [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_driver_init [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_driver_exit [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-01 07:43:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 07:43:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_rlock_of_wdm_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_rlock_of_wdm_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_rlock_of_wdm_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_rlock_of_wdm_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_rlock_of_wdm_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_rlock_of_wdm_device [2023-04-01 07:43:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_rlock_of_wdm_device [2023-04-01 07:43:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_rlock_of_wdm_device [2023-04-01 07:43:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_wdm_mutex [2023-04-01 07:43:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_wdm_mutex [2023-04-01 07:43:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_wdm_mutex [2023-04-01 07:43:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_wdm_mutex [2023-04-01 07:43:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_wdm_mutex [2023-04-01 07:43:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_wdm_mutex [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_wdm_mutex [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_wdm_mutex [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_wdm_mutex [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_wlock_of_wdm_device [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 07:43:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 07:43:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 07:43:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 07:43:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 07:43:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 07:43:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 07:43:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 07:43:51,053 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 07:43:51,058 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 07:43:51,264 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 07:43:56,325 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 07:43:57,065 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 07:43:57,065 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 07:43:57,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:43:57 BoogieIcfgContainer [2023-04-01 07:43:57,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 07:43:57,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 07:43:57,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 07:43:57,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 07:43:57,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 07:43:47" (1/3) ... [2023-04-01 07:43:57,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3960b941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:43:57, skipping insertion in model container [2023-04-01 07:43:57,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:43:49" (2/3) ... [2023-04-01 07:43:57,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3960b941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:43:57, skipping insertion in model container [2023-04-01 07:43:57,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:43:57" (3/3) ... [2023-04-01 07:43:57,078 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-01 07:43:57,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 07:43:57,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 07:43:57,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 07:43:57,178 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;@6b318639, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 07:43:57,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 07:43:57,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 1651 states, 879 states have (on average 1.2502844141069398) internal successors, (1099), 931 states have internal predecessors, (1099), 525 states have call successors, (525), 172 states have call predecessors, (525), 171 states have return successors, (519), 516 states have call predecessors, (519), 519 states have call successors, (519) [2023-04-01 07:43:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-01 07:43:57,216 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:43:57,217 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:57,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:43:57,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:43:57,222 INFO L85 PathProgramCache]: Analyzing trace with hash 769597154, now seen corresponding path program 1 times [2023-04-01 07:43:57,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:43:57,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907943753] [2023-04-01 07:43:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:43:57,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:43:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:43:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-01 07:43:58,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:43:58,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907943753] [2023-04-01 07:43:58,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907943753] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:43:58,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:43:58,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:43:58,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045570846] [2023-04-01 07:43:58,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:43:58,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:43:58,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:43:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:43:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:43:58,292 INFO L87 Difference]: Start difference. First operand has 1651 states, 879 states have (on average 1.2502844141069398) internal successors, (1099), 931 states have internal predecessors, (1099), 525 states have call successors, (525), 172 states have call predecessors, (525), 171 states have return successors, (519), 516 states have call predecessors, (519), 519 states have call successors, (519) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-01 07:43:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:43:59,944 INFO L93 Difference]: Finished difference Result 3494 states and 4785 transitions. [2023-04-01 07:43:59,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:43:59,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 198 [2023-04-01 07:43:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:43:59,975 INFO L225 Difference]: With dead ends: 3494 [2023-04-01 07:43:59,976 INFO L226 Difference]: Without dead ends: 2309 [2023-04-01 07:43:59,989 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 07:43:59,992 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 1491 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:43:59,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 2917 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 07:44:00,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2023-04-01 07:44:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2299. [2023-04-01 07:44:00,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1254 states have (on average 1.2551834130781498) internal successors, (1574), 1315 states have internal predecessors, (1574), 747 states have call successors, (747), 300 states have call predecessors, (747), 297 states have return successors, (731), 725 states have call predecessors, (731), 731 states have call successors, (731) [2023-04-01 07:44:00,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3052 transitions. [2023-04-01 07:44:00,211 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3052 transitions. Word has length 198 [2023-04-01 07:44:00,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:00,213 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3052 transitions. [2023-04-01 07:44:00,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-01 07:44:00,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3052 transitions. [2023-04-01 07:44:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-01 07:44:00,226 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:00,226 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:00,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 07:44:00,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:00,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:00,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1039450243, now seen corresponding path program 1 times [2023-04-01 07:44:00,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:00,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887261387] [2023-04-01 07:44:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:00,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-01 07:44:00,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:00,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887261387] [2023-04-01 07:44:00,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887261387] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:00,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:00,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:00,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140168896] [2023-04-01 07:44:00,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:00,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:00,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:00,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:00,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:00,700 INFO L87 Difference]: Start difference. First operand 2299 states and 3052 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-01 07:44:01,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:01,864 INFO L93 Difference]: Finished difference Result 5771 states and 7583 transitions. [2023-04-01 07:44:01,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:01,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 198 [2023-04-01 07:44:01,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:01,886 INFO L225 Difference]: With dead ends: 5771 [2023-04-01 07:44:01,887 INFO L226 Difference]: Without dead ends: 3523 [2023-04-01 07:44:01,897 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 07:44:01,899 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 862 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:01,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 2827 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-01 07:44:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2023-04-01 07:44:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3491. [2023-04-01 07:44:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 1899 states have (on average 1.2469720905739863) internal successors, (2368), 1978 states have internal predecessors, (2368), 1104 states have call successors, (1104), 490 states have call predecessors, (1104), 487 states have return successors, (1088), 1078 states have call predecessors, (1088), 1088 states have call successors, (1088) [2023-04-01 07:44:02,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4560 transitions. [2023-04-01 07:44:02,047 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4560 transitions. Word has length 198 [2023-04-01 07:44:02,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:02,048 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 4560 transitions. [2023-04-01 07:44:02,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-01 07:44:02,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4560 transitions. [2023-04-01 07:44:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-01 07:44:02,051 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:02,051 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:02,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 07:44:02,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:02,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:02,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1233800042, now seen corresponding path program 1 times [2023-04-01 07:44:02,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:02,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445011024] [2023-04-01 07:44:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:02,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-01 07:44:02,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:02,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445011024] [2023-04-01 07:44:02,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445011024] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:02,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:02,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:02,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923260635] [2023-04-01 07:44:02,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:02,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:02,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:02,355 INFO L87 Difference]: Start difference. First operand 3491 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 07:44:03,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:03,938 INFO L93 Difference]: Finished difference Result 8634 states and 11283 transitions. [2023-04-01 07:44:03,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:03,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 221 [2023-04-01 07:44:03,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:03,970 INFO L225 Difference]: With dead ends: 8634 [2023-04-01 07:44:03,970 INFO L226 Difference]: Without dead ends: 5202 [2023-04-01 07:44:03,985 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 07:44:03,986 INFO L413 NwaCegarLoop]: 1980 mSDtfsCounter, 1068 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:03,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 3350 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-01 07:44:03,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5202 states. [2023-04-01 07:44:04,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5202 to 5155. [2023-04-01 07:44:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 2858 states have (on average 1.254373687893632) internal successors, (3585), 2979 states have internal predecessors, (3585), 1584 states have call successors, (1584), 715 states have call predecessors, (1584), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 07:44:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 6737 transitions. [2023-04-01 07:44:04,229 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 6737 transitions. Word has length 221 [2023-04-01 07:44:04,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:04,231 INFO L495 AbstractCegarLoop]: Abstraction has 5155 states and 6737 transitions. [2023-04-01 07:44:04,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 07:44:04,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 6737 transitions. [2023-04-01 07:44:04,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-04-01 07:44:04,233 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:04,234 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:04,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 07:44:04,234 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:04,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:04,234 INFO L85 PathProgramCache]: Analyzing trace with hash 367493536, now seen corresponding path program 1 times [2023-04-01 07:44:04,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:04,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670818258] [2023-04-01 07:44:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:04,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 07:44:04,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:04,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670818258] [2023-04-01 07:44:04,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670818258] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:04,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:04,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:04,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538482162] [2023-04-01 07:44:04,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:04,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:04,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:04,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:04,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:04,542 INFO L87 Difference]: Start difference. First operand 5155 states and 6737 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:05,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:05,447 INFO L93 Difference]: Finished difference Result 5157 states and 6738 transitions. [2023-04-01 07:44:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:05,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2023-04-01 07:44:05,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:05,475 INFO L225 Difference]: With dead ends: 5157 [2023-04-01 07:44:05,476 INFO L226 Difference]: Without dead ends: 5154 [2023-04-01 07:44:05,479 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 07:44:05,482 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1541 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:05,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 1452 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 07:44:05,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5154 states. [2023-04-01 07:44:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5154 to 5154. [2023-04-01 07:44:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 2858 states have (on average 1.2540237928621414) internal successors, (3584), 2978 states have internal predecessors, (3584), 1583 states have call successors, (1583), 715 states have call predecessors, (1583), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 07:44:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 6735 transitions. [2023-04-01 07:44:05,819 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 6735 transitions. Word has length 218 [2023-04-01 07:44:05,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:05,823 INFO L495 AbstractCegarLoop]: Abstraction has 5154 states and 6735 transitions. [2023-04-01 07:44:05,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 6735 transitions. [2023-04-01 07:44:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-04-01 07:44:05,826 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:05,826 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:05,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 07:44:05,826 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:05,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1493603523, now seen corresponding path program 1 times [2023-04-01 07:44:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:05,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951666099] [2023-04-01 07:44:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:05,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 07:44:06,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:06,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951666099] [2023-04-01 07:44:06,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951666099] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:06,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:06,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:06,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992915009] [2023-04-01 07:44:06,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:06,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:06,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:06,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:06,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:06,155 INFO L87 Difference]: Start difference. First operand 5154 states and 6735 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:07,044 INFO L93 Difference]: Finished difference Result 5156 states and 6736 transitions. [2023-04-01 07:44:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:07,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 219 [2023-04-01 07:44:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:07,071 INFO L225 Difference]: With dead ends: 5156 [2023-04-01 07:44:07,071 INFO L226 Difference]: Without dead ends: 5153 [2023-04-01 07:44:07,074 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 07:44:07,075 INFO L413 NwaCegarLoop]: 1449 mSDtfsCounter, 1538 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:07,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1450 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 07:44:07,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2023-04-01 07:44:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2023-04-01 07:44:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 2858 states have (on average 1.2536738978306508) internal successors, (3583), 2977 states have internal predecessors, (3583), 1582 states have call successors, (1582), 715 states have call predecessors, (1582), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 07:44:07,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 6733 transitions. [2023-04-01 07:44:07,442 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 6733 transitions. Word has length 219 [2023-04-01 07:44:07,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:07,443 INFO L495 AbstractCegarLoop]: Abstraction has 5153 states and 6733 transitions. [2023-04-01 07:44:07,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:07,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 6733 transitions. [2023-04-01 07:44:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-04-01 07:44:07,446 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:07,446 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:07,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 07:44:07,447 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:07,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:07,447 INFO L85 PathProgramCache]: Analyzing trace with hash 941934659, now seen corresponding path program 1 times [2023-04-01 07:44:07,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:07,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669877368] [2023-04-01 07:44:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:07,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 07:44:07,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:07,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669877368] [2023-04-01 07:44:07,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669877368] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:07,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:07,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796627133] [2023-04-01 07:44:07,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:07,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:07,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:07,730 INFO L87 Difference]: Start difference. First operand 5153 states and 6733 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:08,667 INFO L93 Difference]: Finished difference Result 5155 states and 6734 transitions. [2023-04-01 07:44:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 220 [2023-04-01 07:44:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:08,698 INFO L225 Difference]: With dead ends: 5155 [2023-04-01 07:44:08,698 INFO L226 Difference]: Without dead ends: 5152 [2023-04-01 07:44:08,702 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 07:44:08,703 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 1535 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:08,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1448 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 07:44:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2023-04-01 07:44:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5152. [2023-04-01 07:44:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5152 states, 2858 states have (on average 1.2533240027991603) internal successors, (3582), 2976 states have internal predecessors, (3582), 1581 states have call successors, (1581), 715 states have call predecessors, (1581), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 07:44:08,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 5152 states and 6731 transitions. [2023-04-01 07:44:08,976 INFO L78 Accepts]: Start accepts. Automaton has 5152 states and 6731 transitions. Word has length 220 [2023-04-01 07:44:08,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:08,977 INFO L495 AbstractCegarLoop]: Abstraction has 5152 states and 6731 transitions. [2023-04-01 07:44:08,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:08,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5152 states and 6731 transitions. [2023-04-01 07:44:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-01 07:44:08,979 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:08,979 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:08,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 07:44:08,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:08,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -865788160, now seen corresponding path program 1 times [2023-04-01 07:44:08,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:08,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413654077] [2023-04-01 07:44:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 07:44:09,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:09,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413654077] [2023-04-01 07:44:09,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413654077] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:09,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:09,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:09,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785191567] [2023-04-01 07:44:09,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:09,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:09,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:09,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:09,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:09,447 INFO L87 Difference]: Start difference. First operand 5152 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:10,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:10,898 INFO L93 Difference]: Finished difference Result 14591 states and 19013 transitions. [2023-04-01 07:44:10,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:10,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 221 [2023-04-01 07:44:10,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:10,943 INFO L225 Difference]: With dead ends: 14591 [2023-04-01 07:44:10,944 INFO L226 Difference]: Without dead ends: 9500 [2023-04-01 07:44:10,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 07:44:10,969 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 1315 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:10,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 2953 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-01 07:44:10,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9500 states. [2023-04-01 07:44:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9500 to 9477. [2023-04-01 07:44:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9477 states, 5292 states have (on average 1.250755857898715) internal successors, (6619), 5501 states have internal predecessors, (6619), 2846 states have call successors, (2846), 1368 states have call predecessors, (2846), 1338 states have return successors, (2846), 2763 states have call predecessors, (2846), 2830 states have call successors, (2846) [2023-04-01 07:44:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9477 states to 9477 states and 12311 transitions. [2023-04-01 07:44:11,563 INFO L78 Accepts]: Start accepts. Automaton has 9477 states and 12311 transitions. Word has length 221 [2023-04-01 07:44:11,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:11,564 INFO L495 AbstractCegarLoop]: Abstraction has 9477 states and 12311 transitions. [2023-04-01 07:44:11,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:11,564 INFO L276 IsEmpty]: Start isEmpty. Operand 9477 states and 12311 transitions. [2023-04-01 07:44:11,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-01 07:44:11,566 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:11,567 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:11,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 07:44:11,567 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:11,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:11,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1070615834, now seen corresponding path program 1 times [2023-04-01 07:44:11,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:11,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588140207] [2023-04-01 07:44:11,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:11,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 07:44:11,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:11,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588140207] [2023-04-01 07:44:11,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588140207] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:11,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:11,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:11,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072093851] [2023-04-01 07:44:11,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:11,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:11,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:11,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:11,971 INFO L87 Difference]: Start difference. First operand 9477 states and 12311 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:13,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:13,216 INFO L93 Difference]: Finished difference Result 10283 states and 12989 transitions. [2023-04-01 07:44:13,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:13,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2023-04-01 07:44:13,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:13,260 INFO L225 Difference]: With dead ends: 10283 [2023-04-01 07:44:13,260 INFO L226 Difference]: Without dead ends: 10279 [2023-04-01 07:44:13,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 07:44:13,269 INFO L413 NwaCegarLoop]: 1472 mSDtfsCounter, 1283 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:13,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1784 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 07:44:13,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2023-04-01 07:44:13,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 10273. [2023-04-01 07:44:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10273 states, 5714 states have (on average 1.2338116905845293) internal successors, (7050), 5917 states have internal predecessors, (7050), 2958 states have call successors, (2958), 1634 states have call predecessors, (2958), 1600 states have return successors, (2960), 2877 states have call predecessors, (2960), 2944 states have call successors, (2960) [2023-04-01 07:44:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10273 states to 10273 states and 12968 transitions. [2023-04-01 07:44:14,037 INFO L78 Accepts]: Start accepts. Automaton has 10273 states and 12968 transitions. Word has length 222 [2023-04-01 07:44:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:14,038 INFO L495 AbstractCegarLoop]: Abstraction has 10273 states and 12968 transitions. [2023-04-01 07:44:14,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 10273 states and 12968 transitions. [2023-04-01 07:44:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-04-01 07:44:14,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:14,040 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:14,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 07:44:14,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:14,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:14,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1169665731, now seen corresponding path program 1 times [2023-04-01 07:44:14,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:14,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650300758] [2023-04-01 07:44:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:14,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:14,444 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 07:44:14,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:14,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650300758] [2023-04-01 07:44:14,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650300758] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:14,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:14,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:14,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115289236] [2023-04-01 07:44:14,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:14,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:14,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:14,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:14,447 INFO L87 Difference]: Start difference. First operand 10273 states and 12968 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:16,288 INFO L93 Difference]: Finished difference Result 28371 states and 35958 transitions. [2023-04-01 07:44:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:16,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 223 [2023-04-01 07:44:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:16,367 INFO L225 Difference]: With dead ends: 28371 [2023-04-01 07:44:16,368 INFO L226 Difference]: Without dead ends: 18141 [2023-04-01 07:44:16,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 07:44:16,419 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 1363 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:16,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 2700 Invalid, 288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 07:44:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18141 states. [2023-04-01 07:44:17,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18141 to 18098. [2023-04-01 07:44:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18098 states, 10170 states have (on average 1.2417895771878074) internal successors, (12629), 10519 states have internal predecessors, (12629), 5128 states have call successors, (5128), 2930 states have call predecessors, (5128), 2799 states have return successors, (5191), 4900 states have call predecessors, (5191), 5111 states have call successors, (5191) [2023-04-01 07:44:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18098 states to 18098 states and 22948 transitions. [2023-04-01 07:44:17,495 INFO L78 Accepts]: Start accepts. Automaton has 18098 states and 22948 transitions. Word has length 223 [2023-04-01 07:44:17,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:17,496 INFO L495 AbstractCegarLoop]: Abstraction has 18098 states and 22948 transitions. [2023-04-01 07:44:17,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:44:17,496 INFO L276 IsEmpty]: Start isEmpty. Operand 18098 states and 22948 transitions. [2023-04-01 07:44:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-01 07:44:17,504 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:17,504 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2023-04-01 07:44:17,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-01 07:44:17,504 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:17,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:17,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1553281389, now seen corresponding path program 1 times [2023-04-01 07:44:17,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:17,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940159863] [2023-04-01 07:44:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:17,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:17,860 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-04-01 07:44:17,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:17,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940159863] [2023-04-01 07:44:17,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940159863] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:17,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:17,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:17,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959814465] [2023-04-01 07:44:17,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:17,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:17,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:17,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:17,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:17,863 INFO L87 Difference]: Start difference. First operand 18098 states and 22948 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-01 07:44:20,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:20,479 INFO L93 Difference]: Finished difference Result 44903 states and 56873 transitions. [2023-04-01 07:44:20,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:20,480 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), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 282 [2023-04-01 07:44:20,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:20,606 INFO L225 Difference]: With dead ends: 44903 [2023-04-01 07:44:20,606 INFO L226 Difference]: Without dead ends: 26866 [2023-04-01 07:44:20,670 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 07:44:20,670 INFO L413 NwaCegarLoop]: 2101 mSDtfsCounter, 1188 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:20,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 3403 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 07:44:20,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26866 states. [2023-04-01 07:44:22,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26866 to 26796. [2023-04-01 07:44:22,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26796 states, 15194 states have (on average 1.2375937870211926) internal successors, (18804), 15719 states have internal predecessors, (18804), 7422 states have call successors, (7422), 4362 states have call predecessors, (7422), 4179 states have return successors, (7497), 7100 states have call predecessors, (7497), 7405 states have call successors, (7497) [2023-04-01 07:44:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26796 states to 26796 states and 33723 transitions. [2023-04-01 07:44:22,343 INFO L78 Accepts]: Start accepts. Automaton has 26796 states and 33723 transitions. Word has length 282 [2023-04-01 07:44:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:22,343 INFO L495 AbstractCegarLoop]: Abstraction has 26796 states and 33723 transitions. [2023-04-01 07:44:22,343 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), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-01 07:44:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 26796 states and 33723 transitions. [2023-04-01 07:44:22,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-04-01 07:44:22,356 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:22,356 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2023-04-01 07:44:22,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-01 07:44:22,357 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:22,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:22,357 INFO L85 PathProgramCache]: Analyzing trace with hash 204664204, now seen corresponding path program 1 times [2023-04-01 07:44:22,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:22,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112183664] [2023-04-01 07:44:22,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:22,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 07:44:22,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:22,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112183664] [2023-04-01 07:44:22,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112183664] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:22,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:22,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:22,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205810869] [2023-04-01 07:44:22,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:22,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:22,768 INFO L87 Difference]: Start difference. First operand 26796 states and 33723 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-01 07:44:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:24,179 INFO L93 Difference]: Finished difference Result 40554 states and 51007 transitions. [2023-04-01 07:44:24,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:24,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 284 [2023-04-01 07:44:24,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:24,236 INFO L225 Difference]: With dead ends: 40554 [2023-04-01 07:44:24,236 INFO L226 Difference]: Without dead ends: 13816 [2023-04-01 07:44:24,306 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 07:44:24,307 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 12 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:24,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2893 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 07:44:24,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13816 states. [2023-04-01 07:44:25,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13816 to 13557. [2023-04-01 07:44:25,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13557 states, 7691 states have (on average 1.240800936159147) internal successors, (9543), 7960 states have internal predecessors, (9543), 3754 states have call successors, (3754), 2207 states have call predecessors, (3754), 2111 states have return successors, (3783), 3584 states have call predecessors, (3783), 3737 states have call successors, (3783) [2023-04-01 07:44:25,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 17080 transitions. [2023-04-01 07:44:25,279 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 17080 transitions. Word has length 284 [2023-04-01 07:44:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:25,280 INFO L495 AbstractCegarLoop]: Abstraction has 13557 states and 17080 transitions. [2023-04-01 07:44:25,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-01 07:44:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 17080 transitions. [2023-04-01 07:44:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-04-01 07:44:25,286 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:25,286 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2023-04-01 07:44:25,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-01 07:44:25,286 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:25,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:25,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1834061168, now seen corresponding path program 1 times [2023-04-01 07:44:25,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:25,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919703162] [2023-04-01 07:44:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:25,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:25,862 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-04-01 07:44:25,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:25,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919703162] [2023-04-01 07:44:25,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919703162] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:25,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:25,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:25,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526787629] [2023-04-01 07:44:25,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:25,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:25,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:25,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:25,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:25,864 INFO L87 Difference]: Start difference. First operand 13557 states and 17080 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 07:44:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:27,816 INFO L93 Difference]: Finished difference Result 13565 states and 17086 transitions. [2023-04-01 07:44:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:27,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 300 [2023-04-01 07:44:27,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:27,861 INFO L225 Difference]: With dead ends: 13565 [2023-04-01 07:44:27,861 INFO L226 Difference]: Without dead ends: 13562 [2023-04-01 07:44:27,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 07:44:27,868 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 338 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:27,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 2674 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 07:44:27,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13562 states. [2023-04-01 07:44:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13562 to 13556. [2023-04-01 07:44:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13556 states, 7691 states have (on average 1.2391106488102976) internal successors, (9530), 7959 states have internal predecessors, (9530), 3753 states have call successors, (3753), 2207 states have call predecessors, (3753), 2111 states have return successors, (3783), 3584 states have call predecessors, (3783), 3737 states have call successors, (3783) [2023-04-01 07:44:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 17066 transitions. [2023-04-01 07:44:28,563 INFO L78 Accepts]: Start accepts. Automaton has 13556 states and 17066 transitions. Word has length 300 [2023-04-01 07:44:28,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:28,564 INFO L495 AbstractCegarLoop]: Abstraction has 13556 states and 17066 transitions. [2023-04-01 07:44:28,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 07:44:28,564 INFO L276 IsEmpty]: Start isEmpty. Operand 13556 states and 17066 transitions. [2023-04-01 07:44:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-04-01 07:44:28,569 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:28,569 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2023-04-01 07:44:28,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-01 07:44:28,570 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:28,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:28,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1362017319, now seen corresponding path program 1 times [2023-04-01 07:44:28,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:28,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271073282] [2023-04-01 07:44:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:28,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:44:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-04-01 07:44:28,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:44:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271073282] [2023-04-01 07:44:28,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271073282] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:44:28,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:44:28,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:44:28,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412878912] [2023-04-01 07:44:28,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:44:28,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:44:28,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:44:28,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:44:28,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:44:28,958 INFO L87 Difference]: Start difference. First operand 13556 states and 17066 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-01 07:44:30,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:44:30,836 INFO L93 Difference]: Finished difference Result 31474 states and 39613 transitions. [2023-04-01 07:44:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:44:30,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 311 [2023-04-01 07:44:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:44:30,908 INFO L225 Difference]: With dead ends: 31474 [2023-04-01 07:44:30,908 INFO L226 Difference]: Without dead ends: 18083 [2023-04-01 07:44:30,948 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 07:44:30,949 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1222 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 07:44:30,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2995 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 07:44:30,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18083 states. [2023-04-01 07:44:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18083 to 18004. [2023-04-01 07:44:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18004 states, 10367 states have (on average 1.2434648403588309) internal successors, (12891), 10735 states have internal predecessors, (12891), 4821 states have call successors, (4821), 2933 states have call predecessors, (4821), 2815 states have return successors, (4865), 4610 states have call predecessors, (4865), 4805 states have call successors, (4865) [2023-04-01 07:44:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18004 states to 18004 states and 22577 transitions. [2023-04-01 07:44:31,933 INFO L78 Accepts]: Start accepts. Automaton has 18004 states and 22577 transitions. Word has length 311 [2023-04-01 07:44:31,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:44:31,933 INFO L495 AbstractCegarLoop]: Abstraction has 18004 states and 22577 transitions. [2023-04-01 07:44:31,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-01 07:44:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 18004 states and 22577 transitions. [2023-04-01 07:44:31,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-04-01 07:44:31,940 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:44:31,940 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2023-04-01 07:44:31,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-01 07:44:31,941 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:44:31,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:44:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1149315496, now seen corresponding path program 1 times [2023-04-01 07:44:31,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:44:31,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556594498] [2023-04-01 07:44:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:44:31,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:44:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat