/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:09:03,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:09:03,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:09:03,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:09:03,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:09:03,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:09:03,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:09:03,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:09:03,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:09:03,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:09:03,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:09:03,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:09:03,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:09:03,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:09:03,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:09:03,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:09:03,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:09:03,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:09:03,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:09:03,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:09:03,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:09:03,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:09:03,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:09:03,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:09:03,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:09:03,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:09:03,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:09:03,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:09:03,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:09:03,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:09:03,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:09:03,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:09:03,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:09:03,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:09:03,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:09:03,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:09:03,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:09:03,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:09:03,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:09:03,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:09:03,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:09:03,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:09:03,663 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:09:03,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:09:03,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:09:03,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:09:03,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:09:03,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:09:03,665 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:09:03,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:09:03,665 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:09:03,665 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:09:03,666 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:09:03,666 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:09:03,666 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:09:03,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:09:03,667 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:09:03,667 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:09:03,667 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:09:03,667 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:09:03,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:09:03,667 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:09:03,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:09:03,668 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:09:03,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:09:03,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:09:03,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:09:03,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:09:03,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:09:03,669 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:09:03,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:09:03,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:09:03,670 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:09:03,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:09:03,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:09:03,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:09:03,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:09:04,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:09:04,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:09:04,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:09:04,106 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:09:04,107 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:09:04,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-04-03 06:09:05,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:09:06,237 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:09:06,237 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-04-03 06:09:06,279 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb3b39b8/2c6e3b987bb04476ae1b4040f5d5c50b/FLAG994b64308 [2023-04-03 06:09:06,321 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb3b39b8/2c6e3b987bb04476ae1b4040f5d5c50b [2023-04-03 06:09:06,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:09:06,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:09:06,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:09:06,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:09:06,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:09:06,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:09:06" (1/1) ... [2023-04-03 06:09:06,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae96d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:06, skipping insertion in model container [2023-04-03 06:09:06,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:09:06" (1/1) ... [2023-04-03 06:09:06,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:09:06,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:09:08,061 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2023-04-03 06:09:08,097 WARN L633 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-04-03 06:09:08,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:09:08,136 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:09:08,558 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2023-04-03 06:09:08,562 WARN L633 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-04-03 06:09:08,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:09:08,629 WARN L667 CHandler]: The function ldv_xmalloc is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:09:08,629 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:09:08,630 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:09:08,635 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:09:08,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08 WrapperNode [2023-04-03 06:09:08,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:09:08,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:09:08,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:09:08,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:09:08,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:08,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:08,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:08,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:08,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:08,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:08,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:08,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:09,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:09:09,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:09:09,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:09:09,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:09:09,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (1/1) ... [2023-04-03 06:09:09,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:09:09,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:09:09,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 06:09:09,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 06:09:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:09:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:09:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-04-03 06:09:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-04-03 06:09:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-04-03 06:09:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-03 06:09:09,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 06:09:09,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 06:09:09,124 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 06:09:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-04-03 06:09:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2023-04-03 06:09:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-03 06:09:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-04-03 06:09:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure queued_spin_is_locked [2023-04-03 06:09:09,125 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:09:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_8 [2023-04-03 06:09:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:09:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:09:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2023-04-03 06:09:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_real [2023-04-03 06:09:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-04-03 06:09:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-04-03 06:09:09,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-04-03 06:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2023-04-03 06:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-04-03 06:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 06:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 06:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 06:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 06:09:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-04-03 06:09:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-04-03 06:09:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-04-03 06:09:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-04-03 06:09:09,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2023-04-03 06:09:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_coherent_mask [2023-04-03 06:09:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2023-04-03 06:09:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-04-03 06:09:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-04-03 06:09:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-04-03 06:09:09,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-04-03 06:09:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2023-04-03 06:09:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_byte [2023-04-03 06:09:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_init_eprom [2023-04-03 06:09:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2023-04-03 06:09:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_init_one [2023-04-03 06:09:09,133 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2023-04-03 06:09:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_init [2023-04-03 06:09:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_cleanup [2023-04-03 06:09:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2023-04-03 06:09:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2023-04-03 06:09:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_irq_handler [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_tst [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure push_scqe [2023-04-03 06:09:09,135 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_scq [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_rx [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2023-04-03 06:09:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_lg_buf [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_proc_read [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_poll [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_atmdev_ops_4 [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-04-03 06:09:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2023-04-03 06:09:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2023-04-03 06:09:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-04-03 06:09:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2023-04-03 06:09:09,138 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2023-04-03 06:09:09,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-04-03 06:09:09,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_driver_3 [2023-04-03 06:09:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2023-04-03 06:09:09,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:09:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-03 06:09:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-03 06:09:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 06:09:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 06:09:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-04-03 06:09:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2023-04-03 06:09:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2023-04-03 06:09:09,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_deregister_37 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_38 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___pci_register_driver_39 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_40 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver_41 [2023-04-03 06:09:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_42 [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atm_dev_register_43 [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_44 [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_45 [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:09:09,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-04-03 06:09:09,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:09:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2023-04-03 06:09:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-03 06:09:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 06:09:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 06:09:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-03 06:09:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-03 06:09:09,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_register [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_pcr_goal [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_sync_single_for_cpu [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-04-03 06:09:09,151 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-03 06:09:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-04-03 06:09:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-04-03 06:09:09,152 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-04-03 06:09:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask [2023-04-03 06:09:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_supported [2023-04-03 06:09:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-03 06:09:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-04-03 06:09:09,153 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure idt77105_init [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_with_offset [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:09:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_pton [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_read_config_byte [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-03 06:09:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 06:09:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-04-03 06:09:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2023-04-03 06:09:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure suni_init [2023-04-03 06:09:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:09:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:09:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:09:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:09:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:09:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:09:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:09:09,157 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-03 06:09:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 06:09:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure mac_pton [2023-04-03 06:09:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:09:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:09:09,158 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:09:09,159 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:09:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:09:09,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:09:09,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-04-03 06:09:09,164 INFO L130 BoogieDeclarations]: Found specification of procedure queued_spin_is_locked [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_8 [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 06:09:09,165 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_with_offset [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_real [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_40 [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_45 [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-04-03 06:09:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 06:09:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_atmdev_ops_4 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_driver_3 [2023-04-03 06:09:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_sync_single_for_cpu [2023-04-03 06:09:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_supported [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_coherent_mask [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2023-04-03 06:09:09,170 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-04-03 06:09:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2023-04-03 06:09:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_42 [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_38 [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_44 [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_register [2023-04-03 06:09:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_register_43 [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atm_dev_deregister_37 [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure atm_pcr_goal [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_read_config_byte [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___pci_register_driver_39 [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-04-03 06:09:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver_41 [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure suni_init [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure idt77105_init [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_byte [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_init_eprom [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2023-04-03 06:09:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ns_irq_handler [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure fill_tst [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure push_scqe [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure drain_scq [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_rx [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2023-04-03 06:09:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_lg_buf [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ns_proc_read [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ns_poll [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_init_one [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_init [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_cleanup [2023-04-03 06:09:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:09:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:09:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:09:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:09:10,022 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:09:10,030 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:09:11,639 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:09:15,564 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:09:18,091 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:09:18,091 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-03 06:09:18,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:09:18 BoogieIcfgContainer [2023-04-03 06:09:18,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:09:18,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:09:18,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:09:18,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:09:18,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:09:06" (1/3) ... [2023-04-03 06:09:18,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226ea3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:09:18, skipping insertion in model container [2023-04-03 06:09:18,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:09:08" (2/3) ... [2023-04-03 06:09:18,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226ea3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:09:18, skipping insertion in model container [2023-04-03 06:09:18,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:09:18" (3/3) ... [2023-04-03 06:09:18,104 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2023-04-03 06:09:18,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:09:18,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:09:18,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:09:18,233 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;@62494c46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:09:18,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:09:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 2242 states, 1293 states have (on average 1.2784222737819027) internal successors, (1653), 1375 states have internal predecessors, (1653), 739 states have call successors, (739), 203 states have call predecessors, (739), 202 states have return successors, (733), 721 states have call predecessors, (733), 733 states have call successors, (733) [2023-04-03 06:09:18,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-03 06:09:18,270 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:09:18,271 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:09:18,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:09:18,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:09:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash -619379507, now seen corresponding path program 1 times [2023-04-03 06:09:18,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:09:18,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974726148] [2023-04-03 06:09:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:09:18,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:09:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:09:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:09:18,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:09:18,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974726148] [2023-04-03 06:09:18,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974726148] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:09:18,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:09:18,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:09:18,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305245597] [2023-04-03 06:09:18,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:09:18,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:09:18,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:09:18,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:09:18,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:09:18,908 INFO L87 Difference]: Start difference. First operand has 2242 states, 1293 states have (on average 1.2784222737819027) internal successors, (1653), 1375 states have internal predecessors, (1653), 739 states have call successors, (739), 203 states have call predecessors, (739), 202 states have return successors, (733), 721 states have call predecessors, (733), 733 states have call successors, (733) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-03 06:09:21,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:23,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:28,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:09:28,448 INFO L93 Difference]: Finished difference Result 6131 states and 8697 transitions. [2023-04-03 06:09:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:09:28,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2023-04-03 06:09:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:09:28,498 INFO L225 Difference]: With dead ends: 6131 [2023-04-03 06:09:28,498 INFO L226 Difference]: Without dead ends: 3871 [2023-04-03 06:09:28,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:09:28,521 INFO L413 NwaCegarLoop]: 2776 mSDtfsCounter, 2531 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2531 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-04-03 06:09:28,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2531 Valid, 5412 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 623 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2023-04-03 06:09:28,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2023-04-03 06:09:28,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3861. [2023-04-03 06:09:28,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3861 states, 2234 states have (on average 1.2676812891674127) internal successors, (2832), 2362 states have internal predecessors, (2832), 1277 states have call successors, (1277), 351 states have call predecessors, (1277), 349 states have return successors, (1287), 1250 states have call predecessors, (1287), 1275 states have call successors, (1287) [2023-04-03 06:09:28,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5396 transitions. [2023-04-03 06:09:28,797 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5396 transitions. Word has length 133 [2023-04-03 06:09:28,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:09:28,798 INFO L495 AbstractCegarLoop]: Abstraction has 3861 states and 5396 transitions. [2023-04-03 06:09:28,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-03 06:09:28,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5396 transitions. [2023-04-03 06:09:28,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-03 06:09:28,811 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:09:28,811 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:09:28,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:09:28,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:09:28,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:09:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1733015915, now seen corresponding path program 1 times [2023-04-03 06:09:28,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:09:28,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701541752] [2023-04-03 06:09:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:09:28,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:09:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:09:29,150 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:09:29,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:09:29,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701541752] [2023-04-03 06:09:29,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701541752] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:09:29,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:09:29,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:09:29,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883670547] [2023-04-03 06:09:29,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:09:29,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:09:29,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:09:29,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:09:29,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:09:29,153 INFO L87 Difference]: Start difference. First operand 3861 states and 5396 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:09:32,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:35,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:37,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:40,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:42,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:09:42,388 INFO L93 Difference]: Finished difference Result 10340 states and 14428 transitions. [2023-04-03 06:09:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:09:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2023-04-03 06:09:42,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:09:42,484 INFO L225 Difference]: With dead ends: 10340 [2023-04-03 06:09:42,484 INFO L226 Difference]: Without dead ends: 6509 [2023-04-03 06:09:42,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:09:42,549 INFO L413 NwaCegarLoop]: 3497 mSDtfsCounter, 2179 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2179 SdHoareTripleChecker+Valid, 6181 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:09:42,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2179 Valid, 6181 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 679 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2023-04-03 06:09:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2023-04-03 06:09:43,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 6490. [2023-04-03 06:09:43,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6490 states, 3772 states have (on average 1.2717391304347827) internal successors, (4797), 3999 states have internal predecessors, (4797), 2116 states have call successors, (2116), 603 states have call predecessors, (2116), 601 states have return successors, (2134), 2064 states have call predecessors, (2134), 2114 states have call successors, (2134) [2023-04-03 06:09:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6490 states to 6490 states and 9047 transitions. [2023-04-03 06:09:43,269 INFO L78 Accepts]: Start accepts. Automaton has 6490 states and 9047 transitions. Word has length 139 [2023-04-03 06:09:43,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:09:43,270 INFO L495 AbstractCegarLoop]: Abstraction has 6490 states and 9047 transitions. [2023-04-03 06:09:43,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:09:43,270 INFO L276 IsEmpty]: Start isEmpty. Operand 6490 states and 9047 transitions. [2023-04-03 06:09:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-04-03 06:09:43,282 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:09:43,282 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:09:43,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:09:43,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:09:43,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:09:43,284 INFO L85 PathProgramCache]: Analyzing trace with hash -921817750, now seen corresponding path program 1 times [2023-04-03 06:09:43,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:09:43,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634293310] [2023-04-03 06:09:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:09:43,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:09:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:09:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:09:44,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:09:44,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634293310] [2023-04-03 06:09:44,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634293310] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:09:44,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:09:44,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:09:44,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843805176] [2023-04-03 06:09:44,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:09:44,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:09:44,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:09:44,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:09:44,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:09:44,238 INFO L87 Difference]: Start difference. First operand 6490 states and 9047 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:09:47,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:49,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:51,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:53,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:55,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:09:57,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:01,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:04,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:06,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:09,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:10,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:14,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:10:14,721 INFO L93 Difference]: Finished difference Result 19430 states and 27127 transitions. [2023-04-03 06:10:14,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:10:14,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 168 [2023-04-03 06:10:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:10:14,812 INFO L225 Difference]: With dead ends: 19430 [2023-04-03 06:10:14,812 INFO L226 Difference]: Without dead ends: 12981 [2023-04-03 06:10:14,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:10:14,852 INFO L413 NwaCegarLoop]: 2729 mSDtfsCounter, 3000 mSDsluCounter, 8143 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 10872 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:10:14,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 10872 Invalid, 1196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1181 Invalid, 8 Unknown, 0 Unchecked, 30.0s Time] [2023-04-03 06:10:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12981 states. [2023-04-03 06:10:15,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12981 to 12946. [2023-04-03 06:10:15,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12946 states, 7529 states have (on average 1.2721476955771018) internal successors, (9578), 8001 states have internal predecessors, (9578), 4214 states have call successors, (4214), 1200 states have call predecessors, (4214), 1202 states have return successors, (4276), 4096 states have call predecessors, (4276), 4212 states have call successors, (4276) [2023-04-03 06:10:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12946 states to 12946 states and 18068 transitions. [2023-04-03 06:10:15,543 INFO L78 Accepts]: Start accepts. Automaton has 12946 states and 18068 transitions. Word has length 168 [2023-04-03 06:10:15,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:10:15,544 INFO L495 AbstractCegarLoop]: Abstraction has 12946 states and 18068 transitions. [2023-04-03 06:10:15,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:10:15,545 INFO L276 IsEmpty]: Start isEmpty. Operand 12946 states and 18068 transitions. [2023-04-03 06:10:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-03 06:10:15,550 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:10:15,550 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:10:15,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:10:15,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:10:15,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:10:15,551 INFO L85 PathProgramCache]: Analyzing trace with hash -903212397, now seen corresponding path program 1 times [2023-04-03 06:10:15,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:10:15,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663852201] [2023-04-03 06:10:15,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:10:15,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:10:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:10:16,035 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:10:16,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:10:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663852201] [2023-04-03 06:10:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663852201] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:10:16,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:10:16,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:10:16,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561975483] [2023-04-03 06:10:16,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:10:16,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:10:16,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:10:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:10:16,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:10:16,039 INFO L87 Difference]: Start difference. First operand 12946 states and 18068 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:10:18,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:20,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:22,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:26,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:29,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:32,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:34,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:36,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:39,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:40,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:47,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:48,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:52,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:10:53,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:10:53,958 INFO L93 Difference]: Finished difference Result 30028 states and 41864 transitions. [2023-04-03 06:10:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:10:53,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 169 [2023-04-03 06:10:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:10:54,075 INFO L225 Difference]: With dead ends: 30028 [2023-04-03 06:10:54,076 INFO L226 Difference]: Without dead ends: 19457 [2023-04-03 06:10:54,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:10:54,138 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 2996 mSDsluCounter, 9403 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 12764 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:10:54,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2996 Valid, 12764 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1379 Invalid, 8 Unknown, 0 Unchecked, 37.2s Time] [2023-04-03 06:10:54,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19457 states. [2023-04-03 06:10:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19457 to 19408. [2023-04-03 06:10:54,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19408 states, 11298 states have (on average 1.271995043370508) internal successors, (14371), 11993 states have internal predecessors, (14371), 6308 states have call successors, (6308), 1797 states have call predecessors, (6308), 1801 states have return successors, (6398), 6144 states have call predecessors, (6398), 6306 states have call successors, (6398) [2023-04-03 06:10:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19408 states to 19408 states and 27077 transitions. [2023-04-03 06:10:55,186 INFO L78 Accepts]: Start accepts. Automaton has 19408 states and 27077 transitions. Word has length 169 [2023-04-03 06:10:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:10:55,186 INFO L495 AbstractCegarLoop]: Abstraction has 19408 states and 27077 transitions. [2023-04-03 06:10:55,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:10:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 19408 states and 27077 transitions. [2023-04-03 06:10:55,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-03 06:10:55,193 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:10:55,193 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:10:55,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:10:55,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:10:55,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:10:55,194 INFO L85 PathProgramCache]: Analyzing trace with hash -128690137, now seen corresponding path program 1 times [2023-04-03 06:10:55,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:10:55,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556907658] [2023-04-03 06:10:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:10:55,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:10:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:10:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:10:55,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:10:55,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556907658] [2023-04-03 06:10:55,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556907658] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:10:55,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:10:55,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:10:55,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237711534] [2023-04-03 06:10:55,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:10:55,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:10:55,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:10:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:10:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:10:55,692 INFO L87 Difference]: Start difference. First operand 19408 states and 27077 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:10:58,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:00,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:02,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:03,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:05,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:08,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:10,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:12,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:14,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:17,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:19,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:21,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:22,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:24,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:25,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:27,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:28,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:31,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:35,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:11:35,813 INFO L93 Difference]: Finished difference Result 36510 states and 50881 transitions. [2023-04-03 06:11:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:11:35,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 170 [2023-04-03 06:11:35,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:11:36,308 INFO L225 Difference]: With dead ends: 36510 [2023-04-03 06:11:36,308 INFO L226 Difference]: Without dead ends: 19473 [2023-04-03 06:11:36,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:11:36,414 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 2994 mSDsluCounter, 9403 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 12764 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:11:36,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 12764 Invalid, 1393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1379 Invalid, 7 Unknown, 0 Unchecked, 39.4s Time] [2023-04-03 06:11:36,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19473 states. [2023-04-03 06:11:38,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19473 to 19424. [2023-04-03 06:11:38,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19424 states, 11314 states have (on average 1.2716103942018737) internal successors, (14387), 12005 states have internal predecessors, (14387), 6304 states have call successors, (6304), 1801 states have call predecessors, (6304), 1805 states have return successors, (6386), 6144 states have call predecessors, (6386), 6302 states have call successors, (6386) [2023-04-03 06:11:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19424 states to 19424 states and 27077 transitions. [2023-04-03 06:11:38,493 INFO L78 Accepts]: Start accepts. Automaton has 19424 states and 27077 transitions. Word has length 170 [2023-04-03 06:11:38,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:11:38,493 INFO L495 AbstractCegarLoop]: Abstraction has 19424 states and 27077 transitions. [2023-04-03 06:11:38,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:11:38,494 INFO L276 IsEmpty]: Start isEmpty. Operand 19424 states and 27077 transitions. [2023-04-03 06:11:38,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-04-03 06:11:38,623 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:11:38,624 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:11:38,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:11:38,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:11:38,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:11:38,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1690547536, now seen corresponding path program 1 times [2023-04-03 06:11:38,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:11:38,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828765929] [2023-04-03 06:11:38,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:11:38,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:11:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:11:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:11:39,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:11:39,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828765929] [2023-04-03 06:11:39,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828765929] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:11:39,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:11:39,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:11:39,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559802306] [2023-04-03 06:11:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:11:39,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:11:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:11:39,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:11:39,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:11:39,498 INFO L87 Difference]: Start difference. First operand 19424 states and 27077 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:11:41,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:43,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:45,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:48,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:50,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:54,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:56,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:11:58,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:03,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:04,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:06,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:08,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:11,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:12,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:14,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:16,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:16,357 INFO L93 Difference]: Finished difference Result 35571 states and 49476 transitions. [2023-04-03 06:12:16,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:12:16,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 171 [2023-04-03 06:12:16,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:16,564 INFO L225 Difference]: With dead ends: 35571 [2023-04-03 06:12:16,565 INFO L226 Difference]: Without dead ends: 18514 [2023-04-03 06:12:16,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:12:16,696 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 2992 mSDsluCounter, 9403 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 12764 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:16,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2992 Valid, 12764 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1381 Invalid, 6 Unknown, 0 Unchecked, 35.9s Time] [2023-04-03 06:12:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18514 states. [2023-04-03 06:12:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18514 to 18471. [2023-04-03 06:12:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18471 states, 10741 states have (on average 1.270831393724979) internal successors, (13650), 11386 states have internal predecessors, (13650), 5976 states have call successors, (5976), 1751 states have call predecessors, (5976), 1753 states have return successors, (6042), 5825 states have call predecessors, (6042), 5974 states have call successors, (6042) [2023-04-03 06:12:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18471 states to 18471 states and 25668 transitions. [2023-04-03 06:12:18,453 INFO L78 Accepts]: Start accepts. Automaton has 18471 states and 25668 transitions. Word has length 171 [2023-04-03 06:12:18,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:18,456 INFO L495 AbstractCegarLoop]: Abstraction has 18471 states and 25668 transitions. [2023-04-03 06:12:18,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 06:12:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 18471 states and 25668 transitions. [2023-04-03 06:12:18,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-03 06:12:18,460 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:18,460 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2023-04-03 06:12:18,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:12:18,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:18,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:18,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1770076792, now seen corresponding path program 1 times [2023-04-03 06:12:18,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:18,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493554747] [2023-04-03 06:12:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:18,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-04-03 06:12:19,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:19,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493554747] [2023-04-03 06:12:19,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493554747] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:19,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:19,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 06:12:19,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910847401] [2023-04-03 06:12:19,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:19,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 06:12:19,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:19,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 06:12:19,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 06:12:19,637 INFO L87 Difference]: Start difference. First operand 18471 states and 25668 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:12:22,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:24,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:26,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:28,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:30,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:32,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:39,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:40,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:42,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:42,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:42,682 INFO L93 Difference]: Finished difference Result 27664 states and 38804 transitions. [2023-04-03 06:12:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 06:12:42,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 178 [2023-04-03 06:12:42,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:42,949 INFO L225 Difference]: With dead ends: 27664 [2023-04-03 06:12:42,949 INFO L226 Difference]: Without dead ends: 27661 [2023-04-03 06:12:43,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:12:43,002 INFO L413 NwaCegarLoop]: 3109 mSDtfsCounter, 2732 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 7599 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:43,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 7599 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 842 Invalid, 3 Unknown, 0 Unchecked, 21.9s Time] [2023-04-03 06:12:43,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27661 states. [2023-04-03 06:12:44,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27661 to 27487. [2023-04-03 06:12:45,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27487 states, 15873 states have (on average 1.2634032634032635) internal successors, (20054), 16850 states have internal predecessors, (20054), 8956 states have call successors, (8956), 2651 states have call predecessors, (8956), 2657 states have return successors, (9490), 8673 states have call predecessors, (9490), 8954 states have call successors, (9490) [2023-04-03 06:12:45,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27487 states to 27487 states and 38500 transitions. [2023-04-03 06:12:45,162 INFO L78 Accepts]: Start accepts. Automaton has 27487 states and 38500 transitions. Word has length 178 [2023-04-03 06:12:45,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:45,162 INFO L495 AbstractCegarLoop]: Abstraction has 27487 states and 38500 transitions. [2023-04-03 06:12:45,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 06:12:45,163 INFO L276 IsEmpty]: Start isEmpty. Operand 27487 states and 38500 transitions. [2023-04-03 06:12:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-03 06:12:45,195 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:45,196 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2023-04-03 06:12:45,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 06:12:45,209 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:45,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:45,209 INFO L85 PathProgramCache]: Analyzing trace with hash 341073880, now seen corresponding path program 1 times [2023-04-03 06:12:45,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:45,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063531137] [2023-04-03 06:12:45,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:45,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-04-03 06:12:46,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:46,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063531137] [2023-04-03 06:12:46,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063531137] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:12:46,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909882334] [2023-04-03 06:12:46,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:46,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:12:46,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:12:46,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:12:46,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:12:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:47,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 2453 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:12:47,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:12:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:12:47,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:12:47,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909882334] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:47,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:12:47,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-03 06:12:47,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424237019] [2023-04-03 06:12:47,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:47,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:12:47,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:47,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:12:47,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:12:47,997 INFO L87 Difference]: Start difference. First operand 27487 states and 38500 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (20), 4 states have call predecessors, (20), 2 states have call successors, (20) [2023-04-03 06:12:51,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:53,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:55,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:57,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:12:59,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:01,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:05,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:07,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:08,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:10,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:13,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:14,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:16,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:18,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:22,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:13:24,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []