/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:47:40,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:47:40,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:47:40,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:47:40,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:47:40,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:47:40,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:47:40,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:47:40,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:47:40,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:47:40,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:47:40,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:47:40,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:47:40,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:47:40,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:47:40,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:47:40,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:47:40,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:47:40,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:47:40,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:47:40,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:47:40,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:47:40,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:47:40,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:47:40,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:47:40,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:47:40,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:47:40,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:47:40,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:47:40,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:47:40,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:47:40,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:47:40,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:47:40,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:47:40,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:47:40,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:47:40,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:47:40,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:47:40,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:47:40,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:47:40,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:47:40,333 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 [2023-04-03 04:47:40,369 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:47:40,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:47:40,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:47:40,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:47:40,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:47:40,370 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:47:40,371 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:47:40,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:47:40,371 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:47:40,371 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:47:40,372 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:47:40,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:47:40,372 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:47:40,372 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:47:40,372 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:47:40,372 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:47:40,372 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:47:40,372 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:47:40,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:47:40,373 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:47:40,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:47:40,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:47:40,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:47:40,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:47:40,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:47:40,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:47:40,374 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:47:40,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:47:40,374 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:47:40,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:47:40,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:47:40,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:47:40,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:47:40,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:47:40,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:47:40,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:47:40,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:47:40,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:47:40,616 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:47:40,617 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:47:40,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2023-04-03 04:47:41,773 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:47:42,246 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:47:42,247 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2023-04-03 04:47:42,284 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbb0560b/eb43f08086094c61ae31c07a00646c23/FLAG841189f55 [2023-04-03 04:47:42,298 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbb0560b/eb43f08086094c61ae31c07a00646c23 [2023-04-03 04:47:42,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:47:42,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:47:42,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:47:42,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:47:42,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:47:42,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:47:42" (1/1) ... [2023-04-03 04:47:42,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5916d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:42, skipping insertion in model container [2023-04-03 04:47:42,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:47:42" (1/1) ... [2023-04-03 04:47:42,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:47:42,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:47:43,123 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2023-04-03 04:47:43,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:47:43,611 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:47:43,738 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2023-04-03 04:47:43,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:47:43,948 WARN L667 CHandler]: The function __VERIFIER_nondet_u16 is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:47:43,948 WARN L667 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:47:43,948 WARN L667 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:47:43,955 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:47:43,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43 WrapperNode [2023-04-03 04:47:43,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:47:43,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:47:43,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:47:43,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:47:43,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:43,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:47:44,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:47:44,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:47:44,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:47:44,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (1/1) ... [2023-04-03 04:47:44,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:47:44,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:47:44,219 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) [2023-04-03 04:47:44,241 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 [2023-04-03 04:47:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 04:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-04-03 04:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-03 04:47:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 04:47:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2023-04-03 04:47:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2023-04-03 04:47:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2023-04-03 04:47:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2023-04-03 04:47:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_pipe_resources [2023-04-03 04:47:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_pipe_resources [2023-04-03 04:47:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_pipe_resources [2023-04-03 04:47:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_logical_pipe_num [2023-04-03 04:47:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_setup_pipe_resources [2023-04-03 04:47:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2023-04-03 04:47:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2023-04-03 04:47:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_start_recv_pipes [2023-04-03 04:47:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_recv_complete [2023-04-03 04:47:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_usb_transmit_complete [2023-04-03 04:47:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_io_comp_work [2023-04-03 04:47:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2023-04-03 04:47:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_create [2023-04-03 04:47:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_device_detached [2023-04-03 04:47:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_start [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_stop [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_detach_htc [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2023-04-03 04:47:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2023-04-03 04:47:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2023-04-03 04:47:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_read32 [2023-04-03 04:47:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2023-04-03 04:47:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2023-04-03 04:47:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_write [2023-04-03 04:47:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2023-04-03 04:47:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_suspend [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_resume [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_probe [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_pm_suspend [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_pm_resume [2023-04-03 04:47:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_pm_reset_resume [2023-04-03 04:47:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_init [2023-04-03 04:47:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_exit [2023-04-03 04:47:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-03 04:47:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ath6kl_hif_ops_2 [2023-04-03 04:47:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:47:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-03 04:47:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_13 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-03 04:47:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-03 04:47:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 04:47:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 04:47:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-03 04:47:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 04:47:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_cleanup [2023-04-03 04:47:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_create [2023-04-03 04:47:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_destroy [2023-04-03 04:47:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_init [2023-04-03 04:47:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_rx_complete [2023-04-03 04:47:44,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_tx_complete [2023-04-03 04:47:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_dbg [2023-04-03 04:47:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_err [2023-04-03 04:47:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_stop_txrx [2023-04-03 04:47:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_warn [2023-04-03 04:47:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_scheduled_work [2023-04-03 04:47:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2023-04-03 04:47:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2023-04-03 04:47:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-03 04:47:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 04:47:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-04-03 04:47:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-04-03 04:47:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 04:47:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-03 04:47:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-04-03 04:47:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:47:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 04:47:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 04:47:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 04:47:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 04:47:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure flush_scheduled_work [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 04:47:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-03 04:47:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_13 [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2023-04-03 04:47:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:47:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ath6kl_hif_ops_2 [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-04-03 04:47:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-04-03 04:47:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 04:47:44,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_stop_txrx [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_tx_complete [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_rx_complete [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_create [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_init [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_cleanup [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_destroy [2023-04-03 04:47:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_err [2023-04-03 04:47:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_warn [2023-04-03 04:47:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_dbg [2023-04-03 04:47:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_recv_complete [2023-04-03 04:47:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_pipe_resources [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_pipe_resources [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_pipe_resources [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_logical_pipe_num [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_setup_pipe_resources [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2023-04-03 04:47:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_start_recv_pipes [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_usb_transmit_complete [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_io_comp_work [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_create [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_device_detached [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure hif_start [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure hif_stop [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2023-04-03 04:47:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure hif_detach_htc [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_read32 [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_write [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2023-04-03 04:47:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_suspend [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_resume [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_probe [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_pm_suspend [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_pm_resume [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_pm_reset_resume [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_init [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_exit [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:47:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-03 04:47:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:47:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 04:47:44,974 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:47:44,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:47:45,094 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 04:47:48,323 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:47:48,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:47:48,826 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-03 04:47:48,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:47:48 BoogieIcfgContainer [2023-04-03 04:47:48,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:47:48,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:47:48,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:47:48,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:47:48,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:47:42" (1/3) ... [2023-04-03 04:47:48,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c9358f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:47:48, skipping insertion in model container [2023-04-03 04:47:48,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:47:43" (2/3) ... [2023-04-03 04:47:48,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c9358f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:47:48, skipping insertion in model container [2023-04-03 04:47:48,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:47:48" (3/3) ... [2023-04-03 04:47:48,841 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2023-04-03 04:47:48,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:47:48,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:47:48,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:47:48,938 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;@59abd726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:47:48,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:47:48,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 956 states, 555 states have (on average 1.2828828828828829) internal successors, (712), 576 states have internal predecessors, (712), 265 states have call successors, (265), 123 states have call predecessors, (265), 122 states have return successors, (261), 260 states have call predecessors, (261), 261 states have call successors, (261) [2023-04-03 04:47:48,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-03 04:47:48,970 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:48,971 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-04-03 04:47:48,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:48,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1080478269, now seen corresponding path program 1 times [2023-04-03 04:47:48,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:48,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640070263] [2023-04-03 04:47:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:48,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-04-03 04:47:49,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:49,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640070263] [2023-04-03 04:47:49,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640070263] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:49,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:49,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:47:49,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891665501] [2023-04-03 04:47:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:49,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:47:49,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:49,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:47:49,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:49,691 INFO L87 Difference]: Start difference. First operand has 956 states, 555 states have (on average 1.2828828828828829) internal successors, (712), 576 states have internal predecessors, (712), 265 states have call successors, (265), 123 states have call predecessors, (265), 122 states have return successors, (261), 260 states have call predecessors, (261), 261 states have call successors, (261) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-04-03 04:47:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:50,716 INFO L93 Difference]: Finished difference Result 2491 states and 3320 transitions. [2023-04-03 04:47:50,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:47:50,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 113 [2023-04-03 04:47:50,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:50,746 INFO L225 Difference]: With dead ends: 2491 [2023-04-03 04:47:50,746 INFO L226 Difference]: Without dead ends: 1638 [2023-04-03 04:47:50,760 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 [2023-04-03 04:47:50,764 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 1053 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:50,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 2058 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-03 04:47:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2023-04-03 04:47:50,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1638. [2023-04-03 04:47:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 972 states have (on average 1.2829218106995885) internal successors, (1247), 996 states have internal predecessors, (1247), 455 states have call successors, (455), 213 states have call predecessors, (455), 210 states have return successors, (452), 450 states have call predecessors, (452), 452 states have call successors, (452) [2023-04-03 04:47:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2154 transitions. [2023-04-03 04:47:50,931 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2154 transitions. Word has length 113 [2023-04-03 04:47:50,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:50,932 INFO L495 AbstractCegarLoop]: Abstraction has 1638 states and 2154 transitions. [2023-04-03 04:47:50,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-04-03 04:47:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2154 transitions. [2023-04-03 04:47:50,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-03 04:47:50,942 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:50,942 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2023-04-03 04:47:50,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:47:50,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:50,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1152778042, now seen corresponding path program 1 times [2023-04-03 04:47:50,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:50,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754358579] [2023-04-03 04:47:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:50,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:51,325 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-04-03 04:47:51,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:51,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754358579] [2023-04-03 04:47:51,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754358579] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:51,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:51,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 04:47:51,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448730054] [2023-04-03 04:47:51,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:51,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:47:51,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:51,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:47:51,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:47:51,328 INFO L87 Difference]: Start difference. First operand 1638 states and 2154 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 04:47:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:52,945 INFO L93 Difference]: Finished difference Result 3253 states and 4272 transitions. [2023-04-03 04:47:52,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:47:52,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 129 [2023-04-03 04:47:52,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:52,959 INFO L225 Difference]: With dead ends: 3253 [2023-04-03 04:47:52,959 INFO L226 Difference]: Without dead ends: 1652 [2023-04-03 04:47:52,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:47:52,973 INFO L413 NwaCegarLoop]: 1033 mSDtfsCounter, 1125 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:52,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 3105 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 04:47:52,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2023-04-03 04:47:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1642. [2023-04-03 04:47:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 975 states have (on average 1.281025641025641) internal successors, (1249), 999 states have internal predecessors, (1249), 455 states have call successors, (455), 213 states have call predecessors, (455), 211 states have return successors, (453), 451 states have call predecessors, (453), 452 states have call successors, (453) [2023-04-03 04:47:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2157 transitions. [2023-04-03 04:47:53,065 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2157 transitions. Word has length 129 [2023-04-03 04:47:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:53,066 INFO L495 AbstractCegarLoop]: Abstraction has 1642 states and 2157 transitions. [2023-04-03 04:47:53,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 04:47:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2157 transitions. [2023-04-03 04:47:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-03 04:47:53,076 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:53,076 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2023-04-03 04:47:53,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:47:53,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:53,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:53,077 INFO L85 PathProgramCache]: Analyzing trace with hash -100843220, now seen corresponding path program 1 times [2023-04-03 04:47:53,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:53,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664089992] [2023-04-03 04:47:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:53,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-04-03 04:47:53,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:53,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664089992] [2023-04-03 04:47:53,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664089992] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:53,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:53,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 04:47:53,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825597964] [2023-04-03 04:47:53,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:53,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 04:47:53,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:53,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 04:47:53,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 04:47:53,558 INFO L87 Difference]: Start difference. First operand 1642 states and 2157 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:47:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:56,588 INFO L93 Difference]: Finished difference Result 3255 states and 4298 transitions. [2023-04-03 04:47:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 04:47:56,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 133 [2023-04-03 04:47:56,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:56,612 INFO L225 Difference]: With dead ends: 3255 [2023-04-03 04:47:56,612 INFO L226 Difference]: Without dead ends: 3234 [2023-04-03 04:47:56,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 04:47:56,619 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 1103 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 4757 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:56,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 4757 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-03 04:47:56,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2023-04-03 04:47:56,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 3234. [2023-04-03 04:47:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 1927 states have (on average 1.2833419823559937) internal successors, (2473), 1979 states have internal predecessors, (2473), 887 states have call successors, (887), 416 states have call predecessors, (887), 419 states have return successors, (916), 882 states have call predecessors, (916), 884 states have call successors, (916) [2023-04-03 04:47:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 4276 transitions. [2023-04-03 04:47:56,800 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 4276 transitions. Word has length 133 [2023-04-03 04:47:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:56,800 INFO L495 AbstractCegarLoop]: Abstraction has 3234 states and 4276 transitions. [2023-04-03 04:47:56,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:47:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 4276 transitions. [2023-04-03 04:47:56,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-04-03 04:47:56,815 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:56,815 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:47:56,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:47:56,815 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:56,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:56,816 INFO L85 PathProgramCache]: Analyzing trace with hash 954814343, now seen corresponding path program 1 times [2023-04-03 04:47:56,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:56,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968272690] [2023-04-03 04:47:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:56,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-04-03 04:47:57,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:57,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968272690] [2023-04-03 04:47:57,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968272690] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:57,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:57,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:47:57,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639058070] [2023-04-03 04:47:57,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:57,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:47:57,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:47:57,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:57,059 INFO L87 Difference]: Start difference. First operand 3234 states and 4276 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 04:47:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:58,090 INFO L93 Difference]: Finished difference Result 8412 states and 11111 transitions. [2023-04-03 04:47:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:47:58,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 280 [2023-04-03 04:47:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:58,120 INFO L225 Difference]: With dead ends: 8412 [2023-04-03 04:47:58,120 INFO L226 Difference]: Without dead ends: 5215 [2023-04-03 04:47:58,133 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 [2023-04-03 04:47:58,134 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 707 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:58,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2037 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 04:47:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2023-04-03 04:47:58,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 5180. [2023-04-03 04:47:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5180 states, 3125 states have (on average 1.29152) internal successors, (4036), 3201 states have internal predecessors, (4036), 1375 states have call successors, (1375), 672 states have call predecessors, (1375), 679 states have return successors, (1428), 1370 states have call predecessors, (1428), 1372 states have call successors, (1428) [2023-04-03 04:47:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5180 states to 5180 states and 6839 transitions. [2023-04-03 04:47:58,424 INFO L78 Accepts]: Start accepts. Automaton has 5180 states and 6839 transitions. Word has length 280 [2023-04-03 04:47:58,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:58,426 INFO L495 AbstractCegarLoop]: Abstraction has 5180 states and 6839 transitions. [2023-04-03 04:47:58,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 04:47:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5180 states and 6839 transitions. [2023-04-03 04:47:58,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-04-03 04:47:58,445 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:58,446 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:47:58,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:47:58,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:58,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash -764878446, now seen corresponding path program 1 times [2023-04-03 04:47:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964619046] [2023-04-03 04:47:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-04-03 04:47:58,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964619046] [2023-04-03 04:47:58,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964619046] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:58,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:47:58,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:47:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195463278] [2023-04-03 04:47:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:58,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:47:58,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:47:58,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:47:58,662 INFO L87 Difference]: Start difference. First operand 5180 states and 6839 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 04:47:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:59,980 INFO L93 Difference]: Finished difference Result 12385 states and 16234 transitions. [2023-04-03 04:47:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:47:59,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 260 [2023-04-03 04:47:59,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:48:00,034 INFO L225 Difference]: With dead ends: 12385 [2023-04-03 04:48:00,034 INFO L226 Difference]: Without dead ends: 7242 [2023-04-03 04:48:00,059 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 [2023-04-03 04:48:00,060 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 691 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-03 04:48:00,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 2218 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-03 04:48:00,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2023-04-03 04:48:00,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 7217. [2023-04-03 04:48:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7217 states, 4334 states have (on average 1.2796492847254268) internal successors, (5546), 4460 states have internal predecessors, (5546), 1897 states have call successors, (1897), 972 states have call predecessors, (1897), 985 states have return successors, (1970), 1888 states have call predecessors, (1970), 1894 states have call successors, (1970) [2023-04-03 04:48:00,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7217 states to 7217 states and 9413 transitions. [2023-04-03 04:48:00,441 INFO L78 Accepts]: Start accepts. Automaton has 7217 states and 9413 transitions. Word has length 260 [2023-04-03 04:48:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:48:00,441 INFO L495 AbstractCegarLoop]: Abstraction has 7217 states and 9413 transitions. [2023-04-03 04:48:00,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 04:48:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7217 states and 9413 transitions. [2023-04-03 04:48:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-04-03 04:48:00,465 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:48:00,465 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:48:00,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:48:00,466 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:48:00,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:48:00,466 INFO L85 PathProgramCache]: Analyzing trace with hash -85889193, now seen corresponding path program 1 times [2023-04-03 04:48:00,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:48:00,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032205717] [2023-04-03 04:48:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:00,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:48:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2023-04-03 04:48:00,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:48:00,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032205717] [2023-04-03 04:48:00,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032205717] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:48:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:48:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:48:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699459147] [2023-04-03 04:48:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:48:00,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:48:00,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:48:00,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:48:00,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:48:00,857 INFO L87 Difference]: Start difference. First operand 7217 states and 9413 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2023-04-03 04:48:02,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:48:02,533 INFO L93 Difference]: Finished difference Result 17163 states and 22371 transitions. [2023-04-03 04:48:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:48:02,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 307 [2023-04-03 04:48:02,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:48:02,608 INFO L225 Difference]: With dead ends: 17163 [2023-04-03 04:48:02,608 INFO L226 Difference]: Without dead ends: 9998 [2023-04-03 04:48:02,640 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 [2023-04-03 04:48:02,642 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 970 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:48:02,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 1885 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 04:48:02,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2023-04-03 04:48:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 9945. [2023-04-03 04:48:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9945 states, 6030 states have (on average 1.2805970149253731) internal successors, (7722), 6192 states have internal predecessors, (7722), 2541 states have call successors, (2541), 1356 states have call predecessors, (2541), 1373 states have return successors, (2638), 2532 states have call predecessors, (2638), 2538 states have call successors, (2638) [2023-04-03 04:48:03,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9945 states to 9945 states and 12901 transitions. [2023-04-03 04:48:03,227 INFO L78 Accepts]: Start accepts. Automaton has 9945 states and 12901 transitions. Word has length 307 [2023-04-03 04:48:03,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:48:03,227 INFO L495 AbstractCegarLoop]: Abstraction has 9945 states and 12901 transitions. [2023-04-03 04:48:03,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2023-04-03 04:48:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 9945 states and 12901 transitions. [2023-04-03 04:48:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-03 04:48:03,252 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:48:03,252 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:48:03,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:48:03,252 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:48:03,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:48:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1299003683, now seen corresponding path program 1 times [2023-04-03 04:48:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:48:03,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775135235] [2023-04-03 04:48:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:03,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:48:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-04-03 04:48:03,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:48:03,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775135235] [2023-04-03 04:48:03,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775135235] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:48:03,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:48:03,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:48:03,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231237063] [2023-04-03 04:48:03,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:48:03,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:48:03,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:48:03,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:48:03,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:48:03,470 INFO L87 Difference]: Start difference. First operand 9945 states and 12901 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-03 04:48:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:48:05,471 INFO L93 Difference]: Finished difference Result 25907 states and 33661 transitions. [2023-04-03 04:48:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:48:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 282 [2023-04-03 04:48:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:48:05,561 INFO L225 Difference]: With dead ends: 25907 [2023-04-03 04:48:05,562 INFO L226 Difference]: Without dead ends: 16014 [2023-04-03 04:48:05,603 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 [2023-04-03 04:48:05,604 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 912 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 04:48:05,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2310 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 04:48:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16014 states. [2023-04-03 04:48:06,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16014 to 15989. [2023-04-03 04:48:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15989 states, 9820 states have (on average 1.260692464358452) internal successors, (12380), 10088 states have internal predecessors, (12380), 3921 states have call successors, (3921), 2216 states have call predecessors, (3921), 2247 states have return successors, (4080), 3908 states have call predecessors, (4080), 3918 states have call successors, (4080) [2023-04-03 04:48:06,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15989 states to 15989 states and 20381 transitions. [2023-04-03 04:48:06,504 INFO L78 Accepts]: Start accepts. Automaton has 15989 states and 20381 transitions. Word has length 282 [2023-04-03 04:48:06,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:48:06,505 INFO L495 AbstractCegarLoop]: Abstraction has 15989 states and 20381 transitions. [2023-04-03 04:48:06,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2023-04-03 04:48:06,505 INFO L276 IsEmpty]: Start isEmpty. Operand 15989 states and 20381 transitions. [2023-04-03 04:48:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-03 04:48:06,539 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:48:06,539 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:48:06,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:48:06,540 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:48:06,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:48:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1119860443, now seen corresponding path program 1 times [2023-04-03 04:48:06,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:48:06,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804131941] [2023-04-03 04:48:06,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:06,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:48:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:06,836 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-03 04:48:06,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:48:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804131941] [2023-04-03 04:48:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804131941] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:48:06,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:48:06,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:48:06,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840908762] [2023-04-03 04:48:06,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:48:06,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:48:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:48:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:48:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:48:06,840 INFO L87 Difference]: Start difference. First operand 15989 states and 20381 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-04-03 04:48:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:48:08,201 INFO L93 Difference]: Finished difference Result 24066 states and 30845 transitions. [2023-04-03 04:48:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:48:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 282 [2023-04-03 04:48:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:48:08,281 INFO L225 Difference]: With dead ends: 24066 [2023-04-03 04:48:08,282 INFO L226 Difference]: Without dead ends: 16045 [2023-04-03 04:48:08,315 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 [2023-04-03 04:48:08,316 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 4 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 04:48:08,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2046 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 04:48:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16045 states. [2023-04-03 04:48:09,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16045 to 16017. [2023-04-03 04:48:09,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16017 states, 9848 states have (on average 1.2599512591389115) internal successors, (12408), 10116 states have internal predecessors, (12408), 3921 states have call successors, (3921), 2216 states have call predecessors, (3921), 2247 states have return successors, (4080), 3908 states have call predecessors, (4080), 3918 states have call successors, (4080) [2023-04-03 04:48:09,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16017 states to 16017 states and 20409 transitions. [2023-04-03 04:48:09,118 INFO L78 Accepts]: Start accepts. Automaton has 16017 states and 20409 transitions. Word has length 282 [2023-04-03 04:48:09,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:48:09,120 INFO L495 AbstractCegarLoop]: Abstraction has 16017 states and 20409 transitions. [2023-04-03 04:48:09,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2023-04-03 04:48:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 16017 states and 20409 transitions. [2023-04-03 04:48:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-04-03 04:48:09,147 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:48:09,147 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:48:09,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 04:48:09,148 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:48:09,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:48:09,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1303645384, now seen corresponding path program 1 times [2023-04-03 04:48:09,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:48:09,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290405292] [2023-04-03 04:48:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:09,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:48:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2023-04-03 04:48:09,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:48:09,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290405292] [2023-04-03 04:48:09,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290405292] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:48:09,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:48:09,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 04:48:09,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385015550] [2023-04-03 04:48:09,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:48:09,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:48:09,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:48:09,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:48:09,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:48:09,626 INFO L87 Difference]: Start difference. First operand 16017 states and 20409 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 04:48:12,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:48:14,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:48:14,325 INFO L93 Difference]: Finished difference Result 32156 states and 41271 transitions. [2023-04-03 04:48:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:48:14,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 287 [2023-04-03 04:48:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:48:14,409 INFO L225 Difference]: With dead ends: 32156 [2023-04-03 04:48:14,409 INFO L226 Difference]: Without dead ends: 16191 [2023-04-03 04:48:14,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:48:14,473 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 2 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4080 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:48:14,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4080 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-04-03 04:48:14,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16191 states. [2023-04-03 04:48:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16191 to 16157. [2023-04-03 04:48:15,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16157 states, 9946 states have (on average 1.257389905489644) internal successors, (12506), 10228 states have internal predecessors, (12506), 3921 states have call successors, (3921), 2216 states have call predecessors, (3921), 2289 states have return successors, (4128), 3936 states have call predecessors, (4128), 3918 states have call successors, (4128) [2023-04-03 04:48:15,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16157 states to 16157 states and 20555 transitions. [2023-04-03 04:48:15,413 INFO L78 Accepts]: Start accepts. Automaton has 16157 states and 20555 transitions. Word has length 287 [2023-04-03 04:48:15,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:48:15,413 INFO L495 AbstractCegarLoop]: Abstraction has 16157 states and 20555 transitions. [2023-04-03 04:48:15,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 04:48:15,414 INFO L276 IsEmpty]: Start isEmpty. Operand 16157 states and 20555 transitions. [2023-04-03 04:48:15,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2023-04-03 04:48:15,440 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:48:15,440 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:48:15,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 04:48:15,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:48:15,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:48:15,441 INFO L85 PathProgramCache]: Analyzing trace with hash -279605081, now seen corresponding path program 1 times [2023-04-03 04:48:15,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:48:15,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925695693] [2023-04-03 04:48:15,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:15,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:48:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-03 04:48:15,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:48:15,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925695693] [2023-04-03 04:48:15,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925695693] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:48:15,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:48:15,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:48:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089415386] [2023-04-03 04:48:15,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:48:15,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:48:15,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:48:15,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:48:15,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:48:15,696 INFO L87 Difference]: Start difference. First operand 16157 states and 20555 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-04-03 04:48:16,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:48:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:48:17,988 INFO L93 Difference]: Finished difference Result 32286 states and 41183 transitions. [2023-04-03 04:48:17,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:48:17,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 295 [2023-04-03 04:48:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:48:18,058 INFO L225 Difference]: With dead ends: 32286 [2023-04-03 04:48:18,058 INFO L226 Difference]: Without dead ends: 16181 [2023-04-03 04:48:18,099 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 [2023-04-03 04:48:18,100 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 0 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:48:18,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2052 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-03 04:48:18,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16181 states. [2023-04-03 04:48:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16181 to 16181. [2023-04-03 04:48:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16181 states, 9970 states have (on average 1.2567703109327983) internal successors, (12530), 10252 states have internal predecessors, (12530), 3921 states have call successors, (3921), 2216 states have call predecessors, (3921), 2289 states have return successors, (4128), 3936 states have call predecessors, (4128), 3918 states have call successors, (4128) [2023-04-03 04:48:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16181 states to 16181 states and 20579 transitions. [2023-04-03 04:48:18,758 INFO L78 Accepts]: Start accepts. Automaton has 16181 states and 20579 transitions. Word has length 295 [2023-04-03 04:48:18,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:48:18,759 INFO L495 AbstractCegarLoop]: Abstraction has 16181 states and 20579 transitions. [2023-04-03 04:48:18,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-04-03 04:48:18,760 INFO L276 IsEmpty]: Start isEmpty. Operand 16181 states and 20579 transitions. [2023-04-03 04:48:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-04-03 04:48:18,783 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:48:18,783 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:48:18,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 04:48:18,784 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:48:18,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:48:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1998435801, now seen corresponding path program 1 times [2023-04-03 04:48:18,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:48:18,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858650103] [2023-04-03 04:48:18,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:18,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:48:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-04-03 04:48:20,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:48:20,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858650103] [2023-04-03 04:48:20,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858650103] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:48:20,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:48:20,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-03 04:48:20,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873892371] [2023-04-03 04:48:20,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:48:20,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 04:48:20,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:48:20,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 04:48:20,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-04-03 04:48:20,013 INFO L87 Difference]: Start difference. First operand 16181 states and 20579 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 7 states have internal predecessors, (131), 5 states have call successors, (53), 4 states have call predecessors, (53), 4 states have return successors, (50), 5 states have call predecessors, (50), 5 states have call successors, (50) [2023-04-03 04:48:25,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:48:25,992 INFO L93 Difference]: Finished difference Result 34478 states and 44103 transitions. [2023-04-03 04:48:25,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-03 04:48:25,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 7 states have internal predecessors, (131), 5 states have call successors, (53), 4 states have call predecessors, (53), 4 states have return successors, (50), 5 states have call predecessors, (50), 5 states have call successors, (50) Word has length 284 [2023-04-03 04:48:25,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:48:26,078 INFO L225 Difference]: With dead ends: 34478 [2023-04-03 04:48:26,079 INFO L226 Difference]: Without dead ends: 18349 [2023-04-03 04:48:26,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-03 04:48:26,130 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 2050 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 4123 mSolverCounterSat, 1127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 5250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1127 IncrementalHoareTripleChecker+Valid, 4123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:48:26,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 1787 Invalid, 5250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1127 Valid, 4123 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-03 04:48:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18349 states. [2023-04-03 04:48:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18349 to 17981. [2023-04-03 04:48:26,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17981 states, 10894 states have (on average 1.245089039838443) internal successors, (13564), 11260 states have internal predecessors, (13564), 4439 states have call successors, (4439), 2440 states have call predecessors, (4439), 2647 states have return successors, (4916), 4562 states have call predecessors, (4916), 4436 states have call successors, (4916) [2023-04-03 04:48:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17981 states to 17981 states and 22919 transitions. [2023-04-03 04:48:27,035 INFO L78 Accepts]: Start accepts. Automaton has 17981 states and 22919 transitions. Word has length 284 [2023-04-03 04:48:27,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:48:27,036 INFO L495 AbstractCegarLoop]: Abstraction has 17981 states and 22919 transitions. [2023-04-03 04:48:27,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 7 states have internal predecessors, (131), 5 states have call successors, (53), 4 states have call predecessors, (53), 4 states have return successors, (50), 5 states have call predecessors, (50), 5 states have call successors, (50) [2023-04-03 04:48:27,036 INFO L276 IsEmpty]: Start isEmpty. Operand 17981 states and 22919 transitions. [2023-04-03 04:48:27,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-04-03 04:48:27,059 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:48:27,059 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:48:27,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 04:48:27,060 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:48:27,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:48:27,060 INFO L85 PathProgramCache]: Analyzing trace with hash 443114875, now seen corresponding path program 1 times [2023-04-03 04:48:27,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:48:27,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282119414] [2023-04-03 04:48:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:48:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-03 04:48:27,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:48:27,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282119414] [2023-04-03 04:48:27,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282119414] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:48:27,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961769785] [2023-04-03 04:48:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:48:27,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:48:27,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:48:27,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:48:27,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:48:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:48:28,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 04:48:28,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:48:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-03 04:48:28,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:48:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-03 04:48:28,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961769785] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:48:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1248570644] [2023-04-03 04:48:28,893 INFO L159 IcfgInterpreter]: Started Sifa with 223 locations of interest [2023-04-03 04:48:28,893 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:48:28,897 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:48:28,901 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:48:28,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:48:33,441 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 139 for LOIs [2023-04-03 04:48:34,843 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 144 for LOIs [2023-04-03 04:48:47,283 WARN L223 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 3426 DAG size of output: 105 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:48:53,236 WARN L223 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 3426 DAG size of output: 105 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:48:59,194 WARN L223 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 3426 DAG size of output: 105 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:05,115 WARN L223 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 3426 DAG size of output: 105 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:05,167 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 97 for LOIs [2023-04-03 04:49:05,304 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_set_init with input of size 101 for LOIs [2023-04-03 04:49:05,332 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 115 for LOIs [2023-04-03 04:49:05,360 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 109 for LOIs [2023-04-03 04:49:13,784 WARN L223 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 3962 DAG size of output: 123 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:21,567 WARN L223 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 3962 DAG size of output: 123 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:30,022 WARN L223 SmtUtils]: Spent 8.04s on a formula simplification. DAG size of input: 4161 DAG size of output: 149 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:38,085 WARN L223 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 4161 DAG size of output: 149 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:49:38,248 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 138 for LOIs [2023-04-03 04:49:38,325 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 110 for LOIs [2023-04-03 04:49:38,355 INFO L180 IcfgInterpreter]: Interpretation finished