/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 IntervalDomain -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 [2023-04-01 01:17:33,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:17:33,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:17:33,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:17:33,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:17:33,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:17:33,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:17:33,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:17:33,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:17:33,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:17:33,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:17:33,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:17:33,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:17:33,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:17:33,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:17:33,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:17:33,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:17:33,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:17:33,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:17:33,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:17:33,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:17:33,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:17:33,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:17:33,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:17:33,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:17:33,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:17:33,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:17:33,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:17:33,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:17:33,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:17:33,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:17:33,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:17:33,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:17:33,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:17:33,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:17:33,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:17:33,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:17:33,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:17:33,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:17:33,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:17:33,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:17:33,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 01:17:33,270 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:17:33,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:17:33,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:17:33,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:17:33,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:17:33,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:17:33,271 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:17:33,271 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:17:33,271 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:17:33,271 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:17:33,271 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:17:33,271 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:17:33,271 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:17:33,272 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:17:33,272 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:17:33,272 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:17:33,272 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:17:33,272 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:17:33,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:17:33,272 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:17:33,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:17:33,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:17:33,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:17:33,274 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:17:33,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:17:33,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:17:33,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:17:33,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:17:33,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:17:33,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:17:33,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:17:33,468 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:17:33,468 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:17:33,469 INFO L432 ainManager$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 [2023-04-01 01:17:34,435 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:17:34,850 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:17:34,851 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 [2023-04-01 01:17:34,884 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616e04836/d6edb85426824e5cb5382a442f8cae71/FLAG7f4e89c23 [2023-04-01 01:17:35,049 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616e04836/d6edb85426824e5cb5382a442f8cae71 [2023-04-01 01:17:35,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:17:35,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:17:35,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:17:35,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:17:35,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:17:35,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:17:35" (1/1) ... [2023-04-01 01:17:35,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1befae21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:35, skipping insertion in model container [2023-04-01 01:17:35,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:17:35" (1/1) ... [2023-04-01 01:17:35,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:17:35,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:17:35,826 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] [2023-04-01 01:17:36,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:17:36,483 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:17:36,613 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] [2023-04-01 01:17:36,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:17:36,772 WARN L667 CHandler]: The function __VERIFIER_nondet_u16 is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:17:36,772 WARN L667 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:17:36,773 WARN L667 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:17:36,778 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:17:36,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36 WrapperNode [2023-04-01 01:17:36,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:17:36,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:17:36,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:17:36,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:17:36,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:17:36,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:17:36,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:17:36,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:17:36,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (1/1) ... [2023-04-01 01:17:36,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:17:36,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:17:36,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 01:17:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:17:37,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 01:17:37,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 01:17:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:17:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2023-04-01 01:17:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_pipe_resources [2023-04-01 01:17:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_pipe_resources [2023-04-01 01:17:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_pipe_resources [2023-04-01 01:17:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_logical_pipe_num [2023-04-01 01:17:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_setup_pipe_resources [2023-04-01 01:17:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_start_recv_pipes [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_recv_complete [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_usb_transmit_complete [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_io_comp_work [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_create [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_device_detached [2023-04-01 01:17:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_start [2023-04-01 01:17:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2023-04-01 01:17:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_stop [2023-04-01 01:17:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2023-04-01 01:17:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2023-04-01 01:17:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2023-04-01 01:17:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure hif_detach_htc [2023-04-01 01:17:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_read32 [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_write [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_suspend [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_resume [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_probe [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_pm_suspend [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_pm_resume [2023-04-01 01:17:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_pm_reset_resume [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_init [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_exit [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ath6kl_hif_ops_2 [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-01 01:17:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_13 [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-01 01:17:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-01 01:17:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:17:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_cleanup [2023-04-01 01:17:37,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_create [2023-04-01 01:17:37,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_destroy [2023-04-01 01:17:37,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_init [2023-04-01 01:17:37,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_rx_complete [2023-04-01 01:17:37,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_core_tx_complete [2023-04-01 01:17:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_dbg [2023-04-01 01:17:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_err [2023-04-01 01:17:37,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_stop_txrx [2023-04-01 01:17:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_warn [2023-04-01 01:17:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_scheduled_work [2023-04-01 01:17:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2023-04-01 01:17:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2023-04-01 01:17:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-01 01:17:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-04-01 01:17:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 01:17:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-01 01:17:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-04-01 01:17:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:17:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 01:17:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 01:17:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:17:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 01:17:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure flush_scheduled_work [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-01 01:17:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-01 01:17:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-01 01:17:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-01 01:17:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-01 01:17:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_13 [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 01:17:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ath6kl_hif_ops_2 [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-04-01 01:17:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_stop_txrx [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_tx_complete [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_rx_complete [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_create [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_init [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_cleanup [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_core_destroy [2023-04-01 01:17:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_err [2023-04-01 01:17:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_warn [2023-04-01 01:17:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_dbg [2023-04-01 01:17:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_recv_complete [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_pipe_resources [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_pipe_resources [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_pipe_resources [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_logical_pipe_num [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_setup_pipe_resources [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_start_recv_pipes [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_usb_transmit_complete [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_io_comp_work [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_create [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_device_detached [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure hif_start [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure hif_stop [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2023-04-01 01:17:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure hif_detach_htc [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_read32 [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_write [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_suspend [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_resume [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_probe [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_pm_suspend [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_pm_resume [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_pm_reset_resume [2023-04-01 01:17:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_init [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_exit [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:17:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:17:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:17:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:17:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:17:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:17:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:17:37,480 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:17:37,486 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:17:37,641 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 01:17:40,590 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:17:40,947 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:17:40,947 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 01:17:40,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:17:40 BoogieIcfgContainer [2023-04-01 01:17:40,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:17:40,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:17:40,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:17:40,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:17:40,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:17:35" (1/3) ... [2023-04-01 01:17:40,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774efe85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:17:40, skipping insertion in model container [2023-04-01 01:17:40,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:36" (2/3) ... [2023-04-01 01:17:40,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774efe85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:17:40, skipping insertion in model container [2023-04-01 01:17:40,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:17:40" (3/3) ... [2023-04-01 01:17:40,960 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 [2023-04-01 01:17:40,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:17:40,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:17:41,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:17:41,041 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;@16a79302, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:17:41,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:17:41,049 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) [2023-04-01 01:17:41,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-01 01:17:41,072 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:41,073 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] [2023-04-01 01:17:41,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:41,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:41,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1080478269, now seen corresponding path program 1 times [2023-04-01 01:17:41,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:41,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635042063] [2023-04-01 01:17:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:41,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:41,722 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-04-01 01:17:41,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:41,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635042063] [2023-04-01 01:17:41,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635042063] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:41,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:41,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:41,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209431281] [2023-04-01 01:17:41,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:41,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:41,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:41,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:41,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:41,761 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) [2023-04-01 01:17:42,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:42,793 INFO L93 Difference]: Finished difference Result 2491 states and 3320 transitions. [2023-04-01 01:17:42,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:42,795 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 [2023-04-01 01:17:42,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:42,811 INFO L225 Difference]: With dead ends: 2491 [2023-04-01 01:17:42,811 INFO L226 Difference]: Without dead ends: 1638 [2023-04-01 01:17:42,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:42,820 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 [2023-04-01 01:17:42,821 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] [2023-04-01 01:17:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2023-04-01 01:17:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1638. [2023-04-01 01:17:42,939 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) [2023-04-01 01:17:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2154 transitions. [2023-04-01 01:17:42,948 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2154 transitions. Word has length 113 [2023-04-01 01:17:42,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:42,948 INFO L495 AbstractCegarLoop]: Abstraction has 1638 states and 2154 transitions. [2023-04-01 01:17:42,949 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) [2023-04-01 01:17:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2154 transitions. [2023-04-01 01:17:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-01 01:17:42,953 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:42,953 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] [2023-04-01 01:17:42,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 01:17:42,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:42,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:42,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1152778042, now seen corresponding path program 1 times [2023-04-01 01:17:42,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:42,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169941767] [2023-04-01 01:17:42,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:42,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-04-01 01:17:43,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:43,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169941767] [2023-04-01 01:17:43,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169941767] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:43,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:43,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 01:17:43,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375364006] [2023-04-01 01:17:43,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:43,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 01:17:43,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:43,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 01:17:43,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:17:43,177 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) [2023-04-01 01:17:44,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:44,816 INFO L93 Difference]: Finished difference Result 3253 states and 4272 transitions. [2023-04-01 01:17:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 01:17:44,816 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 [2023-04-01 01:17:44,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:44,828 INFO L225 Difference]: With dead ends: 3253 [2023-04-01 01:17:44,828 INFO L226 Difference]: Without dead ends: 1652 [2023-04-01 01:17:44,832 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 [2023-04-01 01:17:44,836 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 [2023-04-01 01:17:44,836 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] [2023-04-01 01:17:44,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2023-04-01 01:17:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1642. [2023-04-01 01:17:44,905 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) [2023-04-01 01:17:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2157 transitions. [2023-04-01 01:17:44,913 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2157 transitions. Word has length 129 [2023-04-01 01:17:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:44,913 INFO L495 AbstractCegarLoop]: Abstraction has 1642 states and 2157 transitions. [2023-04-01 01:17:44,914 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) [2023-04-01 01:17:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2157 transitions. [2023-04-01 01:17:44,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-01 01:17:44,920 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:44,920 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] [2023-04-01 01:17:44,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 01:17:44,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:44,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:44,921 INFO L85 PathProgramCache]: Analyzing trace with hash -100843220, now seen corresponding path program 1 times [2023-04-01 01:17:44,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:44,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403180925] [2023-04-01 01:17:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:44,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-04-01 01:17:45,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:45,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403180925] [2023-04-01 01:17:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403180925] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:45,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 01:17:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096878911] [2023-04-01 01:17:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:45,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 01:17:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:45,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 01:17:45,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 01:17:45,266 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) [2023-04-01 01:17:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:47,822 INFO L93 Difference]: Finished difference Result 3255 states and 4298 transitions. [2023-04-01 01:17:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 01:17:47,823 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 [2023-04-01 01:17:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:47,836 INFO L225 Difference]: With dead ends: 3255 [2023-04-01 01:17:47,836 INFO L226 Difference]: Without dead ends: 3234 [2023-04-01 01:17:47,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 01:17:47,838 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 1103 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:47,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 4757 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-01 01:17:47,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2023-04-01 01:17:47,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 3234. [2023-04-01 01:17:47,943 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) [2023-04-01 01:17:47,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 4276 transitions. [2023-04-01 01:17:47,956 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 4276 transitions. Word has length 133 [2023-04-01 01:17:47,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:47,956 INFO L495 AbstractCegarLoop]: Abstraction has 3234 states and 4276 transitions. [2023-04-01 01:17:47,956 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) [2023-04-01 01:17:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 4276 transitions. [2023-04-01 01:17:47,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-04-01 01:17:47,964 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:47,965 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] [2023-04-01 01:17:47,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 01:17:47,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:47,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:47,965 INFO L85 PathProgramCache]: Analyzing trace with hash 954814343, now seen corresponding path program 1 times [2023-04-01 01:17:47,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:47,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803486238] [2023-04-01 01:17:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:47,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-04-01 01:17:48,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:48,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803486238] [2023-04-01 01:17:48,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803486238] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:48,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:48,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:48,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655780802] [2023-04-01 01:17:48,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:48,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:48,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:48,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:48,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:48,121 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) [2023-04-01 01:17:48,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:48,892 INFO L93 Difference]: Finished difference Result 8412 states and 11111 transitions. [2023-04-01 01:17:48,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:48,892 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 [2023-04-01 01:17:48,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:48,916 INFO L225 Difference]: With dead ends: 8412 [2023-04-01 01:17:48,916 INFO L226 Difference]: Without dead ends: 5215 [2023-04-01 01:17:48,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:48,930 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 707 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:48,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2037 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 01:17:48,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2023-04-01 01:17:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 5180. [2023-04-01 01:17:49,119 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) [2023-04-01 01:17:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5180 states to 5180 states and 6839 transitions. [2023-04-01 01:17:49,143 INFO L78 Accepts]: Start accepts. Automaton has 5180 states and 6839 transitions. Word has length 280 [2023-04-01 01:17:49,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:49,143 INFO L495 AbstractCegarLoop]: Abstraction has 5180 states and 6839 transitions. [2023-04-01 01:17:49,143 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) [2023-04-01 01:17:49,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5180 states and 6839 transitions. [2023-04-01 01:17:49,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-04-01 01:17:49,157 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:49,157 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] [2023-04-01 01:17:49,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 01:17:49,158 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:49,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:49,158 INFO L85 PathProgramCache]: Analyzing trace with hash -764878446, now seen corresponding path program 1 times [2023-04-01 01:17:49,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:49,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390714172] [2023-04-01 01:17:49,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:49,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-04-01 01:17:49,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:49,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390714172] [2023-04-01 01:17:49,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390714172] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:49,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:49,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:49,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389573098] [2023-04-01 01:17:49,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:49,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:49,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:49,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:49,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:49,311 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) [2023-04-01 01:17:50,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:50,249 INFO L93 Difference]: Finished difference Result 12385 states and 16234 transitions. [2023-04-01 01:17:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:50,250 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 [2023-04-01 01:17:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:50,285 INFO L225 Difference]: With dead ends: 12385 [2023-04-01 01:17:50,285 INFO L226 Difference]: Without dead ends: 7242 [2023-04-01 01:17:50,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:50,303 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 691 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:50,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 2218 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 01:17:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2023-04-01 01:17:50,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 7217. [2023-04-01 01:17:50,560 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) [2023-04-01 01:17:50,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7217 states to 7217 states and 9413 transitions. [2023-04-01 01:17:50,585 INFO L78 Accepts]: Start accepts. Automaton has 7217 states and 9413 transitions. Word has length 260 [2023-04-01 01:17:50,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:50,585 INFO L495 AbstractCegarLoop]: Abstraction has 7217 states and 9413 transitions. [2023-04-01 01:17:50,586 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) [2023-04-01 01:17:50,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7217 states and 9413 transitions. [2023-04-01 01:17:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-04-01 01:17:50,635 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:50,635 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] [2023-04-01 01:17:50,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 01:17:50,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:50,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash -85889193, now seen corresponding path program 1 times [2023-04-01 01:17:50,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124691201] [2023-04-01 01:17:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:50,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:50,894 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2023-04-01 01:17:50,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:50,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124691201] [2023-04-01 01:17:50,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124691201] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:50,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:50,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:50,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142476658] [2023-04-01 01:17:50,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:50,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:50,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:50,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:50,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:50,897 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) [2023-04-01 01:17:52,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:52,529 INFO L93 Difference]: Finished difference Result 17163 states and 22371 transitions. [2023-04-01 01:17:52,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:52,530 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 [2023-04-01 01:17:52,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:52,583 INFO L225 Difference]: With dead ends: 17163 [2023-04-01 01:17:52,584 INFO L226 Difference]: Without dead ends: 9998 [2023-04-01 01:17:52,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:52,603 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 [2023-04-01 01:17:52,603 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] [2023-04-01 01:17:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2023-04-01 01:17:52,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 9945. [2023-04-01 01:17:52,924 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) [2023-04-01 01:17:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9945 states to 9945 states and 12901 transitions. [2023-04-01 01:17:53,009 INFO L78 Accepts]: Start accepts. Automaton has 9945 states and 12901 transitions. Word has length 307 [2023-04-01 01:17:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:53,010 INFO L495 AbstractCegarLoop]: Abstraction has 9945 states and 12901 transitions. [2023-04-01 01:17:53,010 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) [2023-04-01 01:17:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand 9945 states and 12901 transitions. [2023-04-01 01:17:53,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-01 01:17:53,030 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:53,030 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] [2023-04-01 01:17:53,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 01:17:53,030 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:53,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:53,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1299003683, now seen corresponding path program 1 times [2023-04-01 01:17:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:53,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629180543] [2023-04-01 01:17:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:53,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-04-01 01:17:53,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:53,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629180543] [2023-04-01 01:17:53,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629180543] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:53,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:53,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:53,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638002645] [2023-04-01 01:17:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:53,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:53,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:53,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:53,212 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) [2023-04-01 01:17:54,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:54,896 INFO L93 Difference]: Finished difference Result 25907 states and 33661 transitions. [2023-04-01 01:17:54,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:54,896 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 [2023-04-01 01:17:54,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:54,952 INFO L225 Difference]: With dead ends: 25907 [2023-04-01 01:17:54,952 INFO L226 Difference]: Without dead ends: 16014 [2023-04-01 01:17:54,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:54,978 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 912 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:54,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2310 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 01:17:54,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16014 states. [2023-04-01 01:17:55,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16014 to 15989. [2023-04-01 01:17:55,500 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) [2023-04-01 01:17:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15989 states to 15989 states and 20381 transitions. [2023-04-01 01:17:55,563 INFO L78 Accepts]: Start accepts. Automaton has 15989 states and 20381 transitions. Word has length 282 [2023-04-01 01:17:55,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:55,563 INFO L495 AbstractCegarLoop]: Abstraction has 15989 states and 20381 transitions. [2023-04-01 01:17:55,563 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) [2023-04-01 01:17:55,564 INFO L276 IsEmpty]: Start isEmpty. Operand 15989 states and 20381 transitions. [2023-04-01 01:17:55,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-01 01:17:55,584 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:55,584 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] [2023-04-01 01:17:55,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 01:17:55,585 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:55,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:55,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1119860443, now seen corresponding path program 1 times [2023-04-01 01:17:55,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:55,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245748673] [2023-04-01 01:17:55,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:55,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-01 01:17:55,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:55,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245748673] [2023-04-01 01:17:55,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245748673] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:55,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:55,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:55,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339491494] [2023-04-01 01:17:55,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:55,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:55,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:55,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:55,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:55,777 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) [2023-04-01 01:17:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:56,851 INFO L93 Difference]: Finished difference Result 24066 states and 30845 transitions. [2023-04-01 01:17:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:56,852 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 [2023-04-01 01:17:56,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:56,910 INFO L225 Difference]: With dead ends: 24066 [2023-04-01 01:17:56,911 INFO L226 Difference]: Without dead ends: 16045 [2023-04-01 01:17:56,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:56,938 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 4 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:56,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2046 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 01:17:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16045 states. [2023-04-01 01:17:57,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16045 to 16017. [2023-04-01 01:17:57,508 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) [2023-04-01 01:17:57,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16017 states to 16017 states and 20409 transitions. [2023-04-01 01:17:57,568 INFO L78 Accepts]: Start accepts. Automaton has 16017 states and 20409 transitions. Word has length 282 [2023-04-01 01:17:57,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:57,568 INFO L495 AbstractCegarLoop]: Abstraction has 16017 states and 20409 transitions. [2023-04-01 01:17:57,569 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) [2023-04-01 01:17:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 16017 states and 20409 transitions. [2023-04-01 01:17:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-04-01 01:17:57,593 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:57,593 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] [2023-04-01 01:17:57,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 01:17:57,594 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:57,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1303645384, now seen corresponding path program 1 times [2023-04-01 01:17:57,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:57,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956752229] [2023-04-01 01:17:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:57,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2023-04-01 01:17:58,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:58,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956752229] [2023-04-01 01:17:58,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956752229] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:58,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:58,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 01:17:58,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708542101] [2023-04-01 01:17:58,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:58,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 01:17:58,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:58,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 01:17:58,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:17:58,042 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) [2023-04-01 01:18:01,124 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 [] [2023-04-01 01:18:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:18:02,274 INFO L93 Difference]: Finished difference Result 32156 states and 41271 transitions. [2023-04-01 01:18:02,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 01:18:02,275 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 [2023-04-01 01:18:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:18:02,318 INFO L225 Difference]: With dead ends: 32156 [2023-04-01 01:18:02,319 INFO L226 Difference]: Without dead ends: 16191 [2023-04-01 01:18:02,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:18:02,352 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 2 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:18:02,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4080 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2023-04-01 01:18:02,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16191 states. [2023-04-01 01:18:02,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16191 to 16157. [2023-04-01 01:18:02,853 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) [2023-04-01 01:18:02,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16157 states to 16157 states and 20555 transitions. [2023-04-01 01:18:02,898 INFO L78 Accepts]: Start accepts. Automaton has 16157 states and 20555 transitions. Word has length 287 [2023-04-01 01:18:02,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:18:02,899 INFO L495 AbstractCegarLoop]: Abstraction has 16157 states and 20555 transitions. [2023-04-01 01:18:02,899 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) [2023-04-01 01:18:02,899 INFO L276 IsEmpty]: Start isEmpty. Operand 16157 states and 20555 transitions. [2023-04-01 01:18:02,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2023-04-01 01:18:02,919 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:18:02,919 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] [2023-04-01 01:18:02,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-01 01:18:02,920 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:18:02,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:18:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash -279605081, now seen corresponding path program 1 times [2023-04-01 01:18:02,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:18:02,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841979004] [2023-04-01 01:18:02,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:18:02,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:18:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:18:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-01 01:18:03,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:18:03,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841979004] [2023-04-01 01:18:03,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841979004] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:18:03,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:18:03,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:18:03,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951864287] [2023-04-01 01:18:03,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:18:03,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:18:03,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:18:03,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:18:03,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:18:03,100 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) [2023-04-01 01:18:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:18:04,866 INFO L93 Difference]: Finished difference Result 32286 states and 41183 transitions. [2023-04-01 01:18:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:18:04,867 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 [2023-04-01 01:18:04,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:18:04,924 INFO L225 Difference]: With dead ends: 32286 [2023-04-01 01:18:04,924 INFO L226 Difference]: Without dead ends: 16181 [2023-04-01 01:18:04,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:18:04,962 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 0 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.3s IncrementalHoareTripleChecker+Time [2023-04-01 01:18:04,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2052 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-01 01:18:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16181 states. [2023-04-01 01:18:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16181 to 16181. [2023-04-01 01:18:05,484 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) [2023-04-01 01:18:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16181 states to 16181 states and 20579 transitions. [2023-04-01 01:18:05,532 INFO L78 Accepts]: Start accepts. Automaton has 16181 states and 20579 transitions. Word has length 295 [2023-04-01 01:18:05,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:18:05,533 INFO L495 AbstractCegarLoop]: Abstraction has 16181 states and 20579 transitions. [2023-04-01 01:18:05,533 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) [2023-04-01 01:18:05,534 INFO L276 IsEmpty]: Start isEmpty. Operand 16181 states and 20579 transitions. [2023-04-01 01:18:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-04-01 01:18:05,561 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:18:05,561 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] [2023-04-01 01:18:05,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-01 01:18:05,562 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:18:05,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:18:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1998435801, now seen corresponding path program 1 times [2023-04-01 01:18:05,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:18:05,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877429084] [2023-04-01 01:18:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:18:05,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:18:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:18:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-04-01 01:18:06,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:18:06,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877429084] [2023-04-01 01:18:06,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877429084] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:18:06,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:18:06,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-01 01:18:06,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202849221] [2023-04-01 01:18:06,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:18:06,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 01:18:06,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:18:06,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 01:18:06,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-04-01 01:18:06,424 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) [2023-04-01 01:18:09,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 01:18:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:18:13,604 INFO L93 Difference]: Finished difference Result 34478 states and 44103 transitions. [2023-04-01 01:18:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 01:18:13,604 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 [2023-04-01 01:18:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:18:13,675 INFO L225 Difference]: With dead ends: 34478 [2023-04-01 01:18:13,675 INFO L226 Difference]: Without dead ends: 18349 [2023-04-01 01:18:13,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-01 01:18:13,710 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 2050 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 1127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 5245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1127 IncrementalHoareTripleChecker+Valid, 4118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:18:13,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2262 Valid, 1784 Invalid, 5245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1127 Valid, 4118 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-01 01:18:13,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18349 states. [2023-04-01 01:18:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18349 to 17981. [2023-04-01 01:18:14,335 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) [2023-04-01 01:18:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17981 states to 17981 states and 22919 transitions. [2023-04-01 01:18:14,382 INFO L78 Accepts]: Start accepts. Automaton has 17981 states and 22919 transitions. Word has length 284 [2023-04-01 01:18:14,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:18:14,382 INFO L495 AbstractCegarLoop]: Abstraction has 17981 states and 22919 transitions. [2023-04-01 01:18:14,382 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) [2023-04-01 01:18:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 17981 states and 22919 transitions. [2023-04-01 01:18:14,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-04-01 01:18:14,399 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:18:14,400 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] [2023-04-01 01:18:14,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-01 01:18:14,400 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:18:14,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:18:14,400 INFO L85 PathProgramCache]: Analyzing trace with hash 443114875, now seen corresponding path program 1 times [2023-04-01 01:18:14,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:18:14,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371318899] [2023-04-01 01:18:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:18:14,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:18:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:18:14,618 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-01 01:18:14,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:18:14,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371318899] [2023-04-01 01:18:14,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371318899] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:18:14,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868395718] [2023-04-01 01:18:14,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:18:14,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:18:14,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:18:14,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:18:14,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 01:18:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:18:15,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 01:18:15,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:18:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-01 01:18:15,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 01:18:15,795 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-01 01:18:15,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868395718] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 01:18:15,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [237677331] [2023-04-01 01:18:15,813 INFO L159 IcfgInterpreter]: Started Sifa with 223 locations of interest [2023-04-01 01:18:15,813 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 01:18:15,815 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 01:18:15,819 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 01:18:15,820 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 01:18:20,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 139 for LOIs [2023-04-01 01:18:21,942 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 144 for LOIs [2023-04-01 01:18:26,385 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 97 for LOIs [2023-04-01 01:18:26,544 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_set_init with input of size 101 for LOIs [2023-04-01 01:18:26,569 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 113 for LOIs